SL7815 is a fixed positive-output linear regulator belonging to the SL7805-SL7824 series. It is packaged in TO-220 with maximum output current of 1 A and fixed 15 V DC output. The device integrates thermal-overload shutdown, short-circuit current limiting and output-transistor SOA protection. It delivers ripple-rejection performance for applications such as post-regulation for switching power supplies, microprocessor power supply and motherboard power circuits. This component is RoHS-compliant. Slkor Linear Regulator SL7815 by Sakor Product Image 1. Core Product Parameters Package Type: TO-220 Output Voltage: 15 V Maximum Output Current: 1 A Input Voltage Range: 17.5 V-30 V Typical Dropout Voltage: 2.0 V Maximum Quiescent Current: 8.0 mA Typical Short-Circuit Output Current: 250 mA Maximum Junction Temperature Rating: 150 ℃ Operating Temperature Range: -20 ℃ ~ 150 ℃ Storage Temperature Range: -55 ℃ ~ 150 ℃ Maximum Load Regulation of Output Voltage: 150 mV Maximum Line Regulation of Output Voltage: 150 mV RoHS Compliance: Yes 2. Key Product Features Fixed 15 V output. This product series also covers multiple standard fixed-output levels ranging from 5 V to 24 V. Maximum output current reaches 1 A to meet the requirements of medium-and-low-power DC power supply. Built-in thermal-overload shutdown protection activates when junction temperature exceeds threshold to prevent thermal damage. Integrated short-circuit current limiting function restricts output current under short-circuit conditions and reduces burnout risks. Output-transistor safe-operating-area (SOA) protection prevents damage when the output transistor works beyond safe conditions. Good ripple-rejection capability suppresses AC ripple interference from power input. RoHS-compliant for electronic products requiring environmental certification. 3. Main Application Fields High-efficiency linear regulated power supply for stable 15 V DC output. Post-regulation for switching power supplies to improve output-voltage quality. Power-supply circuits for microprocessors and their peripherals. On-board power supply for computer motherboards and industrial control boards. Internal 15 V power-supply circuits of various industrial equipment and instruments. 4. Engineering Design Recommendations This device has dropout voltage. To guarantee regulation accuracy, input voltage shall be at least 2.0 V higher than output voltage. Input voltage shall never exceed the specified maximum rating. Power dissipation occurs during operation. Proper heat sink must be fitted for TO-220 package according to actual power consumption. Sustained available output current depends heavily on heat-dissipation conditions. Capacitors of recommended capacitance shall be fitted at input and output terminals to improve transient response and suppress oscillation. Refer to values suggested in datasheet. Short-circuit protection is available, yet continuous long-term short-circuit operation is prohibited as it accelerates component aging. Ambient and junction temperature shall stay within rated ranges. Derating is required for high-temperature working conditions. Keep input-loop and output-loop traces as short as possible in PCB layout to minimize the impact of lead resistance on regulation performance. 5. Product Summary SL7815 is a 1-A class fixed positive linear regulator with 15 V output in TO-220 package. It features comprehensive on-chip protection, stable output voltage and simple peripheral circuits. It is a widely-adopted component for traditional 15 V linear power-supply solutions. It is suitable for post-regulation of switching power supplies, microprocessor systems and industrial control boards. In practical engineering practice, proper thermal design and valid input-to-output dropout condition are essential to achieve full device performance. About Slkor： Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories. SL7815To Product Page

SL7812 is a three-terminal fixed positive linear regulator in TO-220 package manufactured by Slkor. It delivers 12V fixed output voltage with maximum continuous output current of 1A. Built-in protections include thermal-overload shutdown, short-circuit current limiting and output-transistor SOA protection. Being RoHS-compliant, it fits 12V low-to-medium-power power-supply applications such as post-regulation for switching power supplies, microprocessor power supply and main-board power supply. This article summarizes key parameters, core features, application scenarios and engineering recommendations for component selection and hardware design. Slkor SL7812 Linear Regulator Product Image I. Core Product Parameters Absolute Maximum Ratings Input Voltage: 35V Output Current: 1A Power Dissipation: Internally-limited for TO-220 package Junction Temperature: 150℃ Operating Temperature Range: -20℃ ~ 150℃ Storage Temperature Range: -55℃ ~ 150℃ Key Electrical Characteristics (Tested at junction temperature of 25℃) Output Voltage: Typical value 12.0V, ranging from 11.52V-12.48V under load of 5mA-1.0A; ranging from 11.40V-12.60V with input voltage 14.5V-27V and load of 5mA-1.0A Output-current capability: Continuous output up to 1A; typical peak output current 1.8A; typical short-circuit current 250mA Quiescent Current: Maximum value 8.0mA. Quiescent current changes slightly with input voltage and output load. Output Noise Voltage: Typical value 75μV within test frequency range 10Hz-100KHz Ripple Rejection: Typical value 72dB at 120Hz test condition Dropout Voltage: Typical value 2.0V Package: TO-220 Environmental Compliance: RoHS-compliant Note: Actual usable steady-state output current depends on input voltage, heat-sink configuration, package lead length and PCB copper pattern layout. Electrical data are obtained under pulse-test conditions. II. Core Product Features Output current reaches 1A, satisfying most 12V low-to-medium-power DC power-supply requirements. Fixed 12V positive output with stable output accuracy. Voltage deviation caused by load and input-voltage variation stays within controllable range. Multiple on-chip protection functions including thermal-overload shutdown, short-circuit current limiting and output-transistor SOA protection to reduce device-damage risks under abnormal conditions. TO-220 package allows direct heatsink mounting to improve overall power-dissipation capacity. Good ripple-rejection performance suppresses AC interference from input side and delivers clean and stable 12V DC output. RoHS-compliant to meet environmental requirements for industrial and consumer-electronic products. III. Main Application Fields 12V high-efficiency linear regulator circuits acting as independent regulating units for stable 12V DC power output. Post-regulation for switching power supplies to conduct secondary filtering and stabilization and improve output-voltage quality. Power supply for microprocessors and control boards, providing 12V power for MCU and control units. 12V power-supply circuits for main boards and various functional add-on boards. IV. Engineering Design Recommendations Absolute-maximum ratings represent stress limits only. Transient or continuous operation beyond these ratings will cause permanent device damage. Actual steady-state output current is constrained by input-to-output differential voltage, heat-dissipation condition and PCB copper layout. A properly-matched heat sink is required under high-power-dissipation conditions to keep junction temperature within allowable range. Follow datasheet recommendation: place 0.33μF capacitor at input terminal and 0.1μF capacitor at output terminal to improve circuit stability and transient-response performance. Reserve sufficient headroom between input and output voltage. The typical dropout voltage is 2.0V. Input voltage shall exceed the sum of output voltage and dropout voltage for normal regulation performance. Temperature brings drift to output voltage, quiescent current and dropout voltage. Sufficient design margin should be reserved for high-temperature and heavy-load scenarios. Short-circuit triggers current-limit protection, yet long-term short-circuit operation is prohibited. Persistent high temperature will degrade device reliability. Optimize thermal copper area for TO-220 PCB layout and implement proper insulation for mounting holes to avoid short-circuit risks. V. Product Summary SL7812 is a TO-220 three-terminal fixed-output linear regulator delivering 12V with maximum output current of 1A. Integrated complete protection circuits and favorable ripple-rejection performance make it suitable for 12V low-to-medium-power power-supply in industrial and consumer electronics. During hardware design, sufficient attention shall be paid to thermal design, input-output headroom and peripheral-capacitor configuration. Operating conditions exceeding absolute-maximum stress ratings must be avoided to guarantee long-term stability of power-supply systems. About Slkor： Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories. SL7812To Product Page

SL7805 is a three-terminal positive linear regulator in TO-220 package manufactured by Slkor. It delivers fixed 5V output with maximum continuous output current of 1A and peak output current up to 1.8A. Integrated protection functions include thermal overload shutdown, short-circuit current limiting and output-transistor safe-operating-area protection. The component is RoHS-compliant. It is widely used for post-regulation of switching power supplies and microprocessor power supply circuits. The operating junction temperature ranges from -20℃ to 150℃, and storage temperature ranges from -55℃ to 150℃, suitable for consumer and industrial electronic circuits. Slkor Linear Regulator SL7805 Product Image I. Core Product Parameters Output specifications: Fixed 5V output voltage; maximum continuous output current 1A; peak output current 1.8A; typical dropout voltage 2.0V. Minor output-voltage shift occurs with changing load, input voltage and junction temperature. Input voltage: Maximum input voltage 35V. Temperature conditions: Operating junction temperature from -20℃ to 150℃; storage temperature from -55℃ to 150℃. Power dissipation: Power dissipation is internally limited. Actual allowable power dissipation depends on heatsink, PCB copper pattern and lead length. Typical protection parameter: Typical short-circuit output current 250mA. Quiescent current: Maximum quiescent current 8.0mA. Noise and ripple: Features ripple-rejection capability; typical output noise voltage is 40μV. Package: TO-220 package, RoHS-compliant. II. Key Product Features Fixed 5V DC output. Output-voltage deviation is kept within datasheet limits to meet requirements for most 5V powered circuits. 1A maximum continuous output and 1.8A peak output, suitable for medium-and-small-power loads. Multiple built-in hardware protections: thermal overload shutdown, short-circuit current limiting and output-transistor safe-operating-area protection, reducing risks of device damage under abnormal conditions. RoHS-compliant, complying with material specifications for various electronic products. Ripple-rejection performance suppresses AC ripple from input side and improves quality of DC output. TO-220 mechanical structure supports external heatsink mounting for heat dissipation under high-power conditions. III. Main Application Fields High-efficiency linear regulator circuits working as independent regulating units to supply stable 5V DC power. Post-stage regulation for switching power supplies to further filter and stabilize converter outputs. 5-V power supply circuits for microprocessors, MCUs and other control chips. 5-V power supply for motherboards and various circuit boards. IV. Engineering Design Recommendations Absolute maximum ratings are stress limits only. Continuous operation beyond these limits will cause permanent device damage. Real steady-state usable output current is not fixed at 1A. It is affected by input voltage, heatsink selection, lead length and PCB copper area. Appropriate thermal solutions must be adopted for high-power operation. Electrical-characteristic data are measured under pulse test conditions with initial junction temperature set at 25℃. Continuous-operation temperature variation will modify output voltage, dropout voltage and quiescent current. Adequate design margin should be reserved. Input and output capacitors are recommended to improve transient response, reduce output noise and enhance system stability. Thermal design should be emphasized. Higher case temperature lowers allowable power dissipation. Larger heatsinks or reduced load current are required for high-temperature environments. Short-circuit triggers current-limit protection, yet long-term short-circuit operation shall be avoided to prevent sustained overheating. V. Product Summary SL7805 is a 5-V three-terminal positive linear regulator in TO-220 package, offering up to 1A output and comprehensive built-in protections. Its TO-220 package facilitates heatsink installation. This device serves well for 5-V linear regulation in consumer and industrial circuit boards and can be deployed for post-regulation after switching converters. In practical engineering, thermal conditions must be fully evaluated. Sufficient design margin considering operating temperature and load shall be reserved to avoid exceeding device limits and ensure long-term reliable equipment operation. About Slkor： Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories. SL7805To Product Page

BCP56-16 is an NPN bipolar transistor manufactured by Slkor in SOT-223 package. It features high collector-current capability and low saturation voltage, with DC current gain ranging from 100 to 250. It is widely used for audio driving and output-stage circuits. Its storage temperature ranges from -65℃ to 150℃, suitable for various medium-and-low-power switching and amplification applications. Slkor NPN Transistor BCP56-16 Product Image 1. Core Product Parameters Collector-base breakdown voltage: 100V Collector-emitter breakdown voltage: 80V Emitter-base breakdown voltage: 5V Continuous collector current: 1A Collector power dissipation: 1.5W Collector cut-off current: Max. 100nA under test condition of Vcb=30V DC current gain: 100-250 under test condition of Vce=2V, Ic=150mA Collector-emitter saturation voltage: Max. 0.5V under test condition of Ic=500mA, Ib=50mA Transition frequency: Min. 100MHz Storage temperature range: -65℃ ~ +150℃ Package type: SOT-223 2. Key Product Features It supports continuous collector current up to 1A to meet current-output requirements of medium-and-low-power circuits. Low collector-emitter saturation voltage reduces power loss under turn-on status. Wide-range DC current gain graded from 100 to 250 delivers stable amplification performance. Complementary PNP types BCP51~BCP53 are available for symmetric-circuit designs such as push-pull topology. SOT-223 package provides favorable heat dissipation performance for PCB layouts with relatively high power density. Minimum transition frequency reaches 100 MHz to support medium-and-high-frequency signal processing. 3. Main Application Fields Audio drive circuits and audio output-stage circuits. General-purpose medium-and-low-power signal amplification circuits. Medium-and-low-power switch control circuits. Push-pull output circuits requiring complementary PNP transistor pairing. 4. Suggestions for Engineering Design Do not exceed the device’s maximum rated voltage, current and power dissipation in practical circuits to prevent permanent device damage. SOT-223 package dissipates heat through PCB copper foil. Sufficient copper area shall be reserved in layout to keep junction temperature within safe limits. Collector cut-off current rises significantly with ambient temperature increase. Evaluate leakage-current impact on whole circuits under high-temperature working conditions. BCP51-BCP53 series PNP transistors can be selected as complementary-pair devices for push-pull circuit design. Select proper DC-gain grade according to practical operating current for amplifier-circuit design to secure stable operating point. 5. Product Summary BCP56-16 is an NPN power transistor housed in SOT-223 package, featuring 80V collector-emitter withstand voltage, 1A continuous collector current and 1.5W power dissipation. It has low saturation voltage and high current gain with corresponding complementary PNP devices available. This component targets audio-drive output as well as medium-and-low-power switching-amplification scenarios. With proper PCB thermal design, the device can operate reliably in consumer and industrial electronic circuits. About Slkor： Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories. BCP56-16To Product Page

SM4007PLA7 is the highest-reverse-voltage general-purpose plastic rectifier diode in Slkor Micro SM400xPL series with SOD-123FL package. Its rated parameters are calibrated under 25℃ ambient temperature. It features 1000V reverse withstand voltage and 1.0A average forward rectified current, with low reverse leakage current and high forward-surge-current resistance. It supports high-temperature soldering and has wide temperature adaptability, suitable for medium-low-power circuits for high-voltage rectification, protection and freewheeling. Slkor General Plastic-Encapsulated Rectifier Diode SM4007PLA7 Product Image I. Core Product Parameters Maximum repetitive peak reverse voltage: 1000V Maximum RMS voltage: 700V DC blocking voltage: 1000V Maximum average forward rectified current: 1.0A under 9.5 mm lead length and 75℃ ambient temperature Peak forward surge current: 30.0A under test condition of 8.3 ms single half sine-wave Maximum instantaneous forward voltage: 1.1V at 1.0A operating current DC reverse current: maximum 5.0 μA at 25℃, maximum 50.0 μA at 100℃ Typical reverse recovery time: 30.0 μs Typical junction capacitance: 15.0 pF Thermal resistance: junction-to-ambient 50.0℃/W, junction-to-lead 25.0℃/W Temperature parameters: maximum operating ambient temperature 150℃; junction and storage temperature range -50℃ ~ +175℃ Package and mechanical specifications: SOD-123FL molded plastic package; plated axial leads; color-band end is cathode; unrestricted mounting position; single-unit weight 0.3 gram. II. Core Product Features Plastic package complies with UL 94V-0 flammability grade and adopts void-free molded plastic construction. Low reverse leakage current reduces static power consumption of circuits. High capability of withstanding forward surge current to resist short-time large-current impulse. Capable of 250℃ / 10 seconds high-temperature soldering under test condition of 9.5 mm lead length and 2.3 kg tension. Terminals meet standard solderability requirements with no restriction on mounting angle during assembly. Wide junction and storage temperature range to adapt high-low-temperature working conditions. III. Main Application Fields Rectifier circuits on high-voltage side or secondary side of switching power supplies and power adapters. Anti-reverse-connection protection circuits for consumer electronics and small household appliances. Freewheeling and voltage-clamping circuits for miniature industrial control boards and relay coils. Half-wave high-voltage rectifier loops for chargers and battery-powered devices. General-purpose high-voltage rectification and surge-suppression scenarios for instruments and security equipment. IV. Suggestions for Engineering Design and Application Rated parameters are measured at 25℃. Derate average forward current when actual ambient temperature rises, and select components referring to the derating curve in datasheet. The 30.0A surge current is measured under 8.3 ms single half sine-wave condition. Do not directly adopt limit parameters under frequent heavy-impulse working conditions and keep sufficient design margin. Reverse leakage current rises significantly with temperature increase. Evaluate power consumption caused by leakage current for high-temperature applications. Strictly control soldering temperature, duration and lead tension to avoid physical damage to the device. Distinguish polarity in assembly. The color-band end of component body is cathode to prevent device failure caused by reversed polarity. Refer to junction-to-lead thermal resistance parameters in PCB layout, and properly design copper foil area to improve heat dissipation performance. Reverse recovery time and junction capacitance are typical test values. Practical prototype verification shall be carried out for high-frequency circuits. V. Product Summary SM4007PL+A7 is a high-voltage general-purpose rectifier diode in SOD-123FL package with 1000V reverse withstand voltage and rated average forward current of 1.0A. With flame-retardant package, surge-resistance and wide operating-temperature range, it is mainly used for medium-low-power circuits requiring high reverse withstand voltage, such as rectification, freewheeling and clamping protection, widely applied in consumer electronics and miniature industrial equipment. In engineering practice, current derating and thermal design shall be completed according to operating temperature to guarantee long-term operational reliability. About Slkor： Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories. SM4007PLA7To Product Page

BC847B is an NPN silicon epitaxial planar transistor in SOT-23 surface-mount package. It delivers moderate current gain for switching and audio amplification circuits. With wide operating temperature range and compact package size, it fits miniaturized electronic products for signal processing. This document summarizes key parameters, core features, application scenarios and engineering recommendations to support component selection and circuit design. Slkor general-purpose signal switching and amplifying transistor BC847B product image 1. Core Product Parameters Package: SOT-23 Collector-Emitter breakdown voltage: 45V Collector-Base breakdown voltage: 50V Emitter-Base breakdown voltage: 6V Continuous collector current: 100mA Peak collector current: 200mA Total power dissipation: 300mW Maximum junction temperature: 150℃ Storage temperature range: -65℃ ~ +150℃ DC current gain Group B: minimum 200, maximum 450 Typical transition frequency: 300MHz 2. Core Product Features SOT-23 surface-mount package saves PCB space and supports automatic SMT assembly. Stable DC current gain of group B for small-signal amplification. Supports both switching mode and audio amplification mode. Corresponding complementary PNP type BC857B is available for push-pull circuit design. High transition frequency to handle medium-high frequency small-signal processing. Low leakage current for good static power consumption performance. 3. Main Application Range Audio signal amplification circuits General-purpose signal switching control circuits Signal conditioning for compact portable electronics General-purpose signal processing units in consumer electronics Push-pull amplifier circuits with complementary PNP transistor 4. Engineering Design Recommendations In practical circuits, continuous operating current shall not exceed 100mA, and peak transient current shall not exceed 200mA to avoid device damage. Power derating is required in circuit design. Actual power dissipation shall stay below the rated 300mW, and further derate under high-temperature conditions. Observe pin assignment: SOT-23 pins are base, emitter and collector. Avoid wrong pin connection during layout and soldering. Multiple gain grades including A/B/C are available. Confirm grade before selection. Group B provides medium gain. Select proper grade according to amplification requirement. For push-pull amplifier circuits, use complementary BC857B for device pairing. Storage temperature ranges from -65℃ to +150℃. Control soldering temperature and duration to prevent thermal damage. 5. Product Summary BC847B is a general-purpose NPN small-signal transistor in SOT-23 package, with 45V breakdown voltage and 100mA rated current. Group B offers DC current gain from 200 to 450. It works for both switching and audio amplification applications. Its compact form factor supports mass SMT production and complementary PNP counterpart is offered. Widely adopted for small-signal processing in consumer electronics. Proper derating on current and power, correct gain grade selection and correct pin connection are required to guarantee long-term stable circuit performance. About Slkor： Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories. BC847BTo Product Page

LM358S is a dual-channel general-purpose operational amplifier released by Slkor. The device integrates internal frequency compensation circuitry and supports both single-supply and split-supply operation modes. It features low power consumption and is suitable for battery-powered products. With a wide input common-mode voltage range that can accept ground-level signals, the component is available in two package variants and fits general op-amp applications such as signal conditioning and DC gain amplification. This document sorts out its parameters, features, applications and key engineering notes based on the device datasheet. Slkor LM358S Operational Amplifier Product Image 1. Core Product Parameters Power supply parameters: Single supply voltage ranges from 3V to 32V; split supply voltage ranges from ±1.5V to ±16V. Recommended operating ambient temperature ranges from 0℃ to 70℃. Gain parameters: Typical DC open-loop voltage gain is 100dB. Input parameters: Maximum input offset voltage is 9.0mV; maximum input offset current is 150nA; maximum input bias current is 500nA. Input common-mode voltage covers ground potential. Output parameters: Output voltage swing ranges from 0V DC to VCC-1.5V DC. Continuous output short-circuit tolerance is supported. Both output sink current and source current offer milliampere-level driving capacity. Package types: LM358D for DIP-8 package, LM358S for SOP-8 package. Absolute maximum ratings: Maximum junction temperature is 150℃; storage temperature ranges from -55℃ to +125℃; maximum input current per pin is 50mA. 2. Core Product Features Internal unity-gain frequency compensation is integrated, so stable operation can be achieved without external compensation components. Dual independent op-amp channels work without mutual interference, delivering good channel separation performance. High power-supply adaptability for both single-supply and split-supply operation. Low supply current consumption with slight variation against supply voltage makes it well-suited for battery-powered equipment. The input common-mode voltage range includes ground potential, enabling processing of ground-referenced input signals under single-supply conditions. Differential input voltage can reach the level of supply voltage, offering favorable input withstand capability. Low input offset voltage and input offset current reduce offset errors for DC signal amplification. Output short-circuit protection is implemented. The output pin can sustain continuous short-to-ground conditions. 3. Main Application Fields Amplification circuits for signals from various transducers, to amplify weak sensor output signals for signal conditioning. DC gain block circuits for level shifting and amplification of DC signals. Battery-powered portable electronic devices, where low power consumption helps extend battery service life. Analog interface circuits for digital systems. It can operate directly with 5V DC power without extra high-voltage power supplies. General-purpose op-amp circuits including voltage followers, comparison circuits, signal filtering and other conventional analog circuits. 4. Engineering Design Recommendations Although protection circuits against static voltage and electric field are built-in, voltages exceeding absolute maximum ratings shall not be applied to input, output and power-supply pins to avoid device damage. During normal operation, input voltage and output voltage shall be limited between ground potential and supply voltage. Input pins of unused op-amp channels shall be tied to proper voltage levels, either GND or VCC. Unused output pins shall be left open. Power derating is required for plastic packages. For DIP-8 package, power shall be reduced by 10mW per 1℃ temperature rise from 65℃ to 125℃. For SOP-8 package, power shall be reduced by 7mW per 1℃ temperature rise from 65℃ to 125℃. Extra input current will occur when input pin voltage is driven below -0.3V. Such operating conditions shall be avoided in design. Keep device operating temperature within the recommended 0-70℃ range to guarantee performance conforms to datasheet specifications. 5. Product Summary LM358S is a general-purpose dual-channel operational amplifier with wide supply voltage range and single-supply support for battery-powered scenarios. Its input accepts ground-level signals and internal frequency compensation is integrated. It is offered in DIP-8 and SOP-8 packages. Featuring stable performance and broad applicability, it serves as a common component for analog signal conditioning. Voltage, temperature and unused-pin design constraints shall be followed in engineering practice to ensure reliable device operation. About Slkor： Slkor has research and development offices in Busan, South Korea, Beijing, China, and Suzhou, China. Most of the wafer manufacturing and packaging and testing are carried out within China. The company employs and collaborates with individuals and organizations worldwide, with a laboratory for product performance and reliability testing and a central warehouse located at its headquarters in Shenzhen. Slkor has filed for over a hundred invention patents, offers more than 2,000 product models, and serves over ten thousand customers globally. Its products are exported to countries and regions including Europe, the Americas, Southeast Asia, and the Middle East, making it one of the rapidly growing semiconductor companies in recent years. With well-established management systems and streamlined workflows, Slkor has rapidly enhanced the brand awareness and reputation of its "SLKOR" brand through its outstanding quality and standardized services. Its product range includes three major series: diodes, transistors, and power devices, with recent introductions of new products such as Hall elements and analog devices, expanding its presence in sensors, Risc-v microcontrollers, and other product categories. LM358STo Product Page

The difference between the IGBT discrete and the IGBT module IGBT module can be regarded as the functional improvement and upgrade of the IGBT discrete. Their application fields are basically the same. However, due to the integration of various drivers and protection circuits, the installation of the IGBT module is greatly convenient for users. With the adoption of new packaging technology, the performance of IGBT has also been greatly improved, expanding the application field of IGBT. The IGBT power module is driven by IC, various driving protection circuits, high -performance IGBT chips, and new packaging technology. From the composite power module PIM to the smart power module IPM, the electronic electronic building PEBB, and the power module iPem. PIM is developing in the direction of high -voltage high -voltage current, and the product level is 1200-18

Introduction: Electronic devices are a very complicated system. The defects and failures of the packaging process are also very complicated. Therefore, the research packaging defect and failure need to have a systematic understanding of the packaging process, so as to analyze the causes of defects from multiple angles. 1. The failure mechanism of packaging defects and failure of the failure and failure can be divided into two categories: excessive stress and wear. Excessive stress failure is often instantaneous and catastrophic; grinding loss is long -term cumulative damage. It is often first indicated as performance degradation, and then the device is invalid. The type of failure can be divided into mechanical, thermal, electrical, radiation and chemical loads. Factors affecting packaging defects and failure are diverse, material ingredients

How much do you know about chip packaging? Why should the chip be encapsulated? What are the types of chip packaging? Chip packaging: In simple terms, it is to put the integrated circuit nude (DIE) produced by Foundry on a substrate with a bearing effect, then lead the tube foot, and then fix the packaging into a whole. Chip packaging function: chip packaging plays the role of placing, fixing, sealing, protecting the chip and enhancing electrical properties, and it is also the bridge between the world and external circuits of the chip-chip connection to the pins of the package shell with a wire connection to the pin shell pins. These pins are connected to other devices through the wires on the printed board. Therefore, packaging plays an important role in the CPU and other LSI integrated circuits. The world packaging type of chip

GD32 is a single chip microcomputer developed in China. It is said that the developer is from ST Company, and GD32 is also made with STM32 as a template. Therefore, GD32 and STM32 are the same in many places.However, GD32 is a different product after all, and it is impossible to follow STM32 for everything. Some self-developed products are still different.We won't talk about the same places. Here are the different places.

Evolution of CIS Packaging

Vehicle-mounted radar is one of the core sensors of Advanced Assisted Driving (ADAS) and unmanned driving, and the vehicle-mounted radar chip is the core of vehicle-mounted radar. Nowadays, the highly integrated (MMIC+DSP/MCU) vehicle-level chip provides a key way for miniaturization, high reliability, stability and low cost of radar, and its importance is self-evident.

Now "end-to-end" is popular. Let's take cell phone call as an example and observe the whole process of signal from cell phone to base station to see what baseband and RF are for.

TVS Diodes vs Zener Diodes: Compared to traditional Zener diodes, TVS TVS diodes have a larger P/N junction area. This structural improvement allows TVS to have stronger high voltage withstand capability while reducing voltage cut-off rate, so it has a be

1. What is a fast recovery diode Fast recovery diodes are commonly used in higher frequency rectification and freewheeling products. Generally used for the input part of the power module, the frequency is not high, no need to use fast recovery diodes,

1. Regarding the relationship between the peak value of absorbed power of transient voltage and the pulse width of transient voltage, the manual only gives the peak value of absorbed power under a specific pulse width, while the pulse width in the actual

ESD electrostatic protector is an overvoltage, anti-static protection component, used to protect sensitive circuits in electronic equipment from the influence of ESD (electrostatic discharge), asThe purpose is to transfer the ESD stress from the sensitive component, so that the current flows through the protective component instead of the sensitive component, while maintaining the low voltage on the sensitive component; ESD staticThe electrical protector should also have low leakage and low capacitance characteristics, which will not reduce the circuit function; will not cause damage to high-speed signals, and will protect against multiple stresses.The function of the protection element will not be reduced.

The TVS tube is a high-efficiency protection device. When the two ends are subjected to an instantaneous high-energy impact, the TVS tube can instantly convert its high-resistance characteristics into low-resistance characteristics, absorb large currents, and clamp the voltage at both ends of the TVS tube. At a certain value (the withstand voltage value of the TVS tube), the rear circuit is protected from the impact of transient high energy and the safety of the circuit is protected. As shown below. To put it simply, if the voltage impact that the circuit can withstand is not higher than DC24V, then weld a 26V TVS tube at the power supply. When the power supply voltage does not exceed 26V, the TVS tube is in a high-impedance state; After a pulse higher than 26V, the TVS tube can quickly clamp the circuit voltage to 24V, thus ensuring the safety of the circuit board.

The advantages of TVS tubes: 1. The response speed is extremely fast (Ps level); 2. The breakdown voltage ranges from 6.12V to 550V; 3. The clamping voltage is more accurate.