In the wave of smart terminals upgrading towards thinner, lighter, and higher-frequency designs, the potential threat of electrostatic discharge (ESD) to circuits has become increasingly prominent. As the functional density of portable products such as smartphones and wearable devices continues to rise, their internal high-speed signal links have put higher demands on the performance of ESD protection devices — they must not only resist high-intensity electrostatic shocks but also avoid affecting signal transmission integrity. Slkor has specifically launched the BTRD04A035 bidirectional ESD protection diode, which, with its compact DFN1006 package and balanced performance, builds a reliable protective barrier for consumer electronic devices.

As a protection device designed for high-frequency scenarios, the BTRD04A035 achieves precise balance in electrical performance: the reverse working voltage (VRWM) reaches 5.0V, compatible with mainstream low-voltage circuits; the reverse breakdown voltage (VBR) ranges from 5.6V to 8.4V (typical value 6.5V), ensuring no interference with signal transmission during normal operation; the forward clamping voltage (VC) is only 10V under 1A pulse and 12V under 5A pulse, which can quickly limit transient overvoltage to a safe range and protect sensitive chips at the backend. Its 15pF junction capacitance (CJ) and 0.1μA reverse leakage current (IR) further balance high-frequency signal compatibility and low power consumption requirements, making it perfectly suitable for high-speed data links.

In terms of protection capability, the device complies with the IEC 61000-4-2 standard, with both contact discharge and air discharge reaching ±25kV. It can withstand 5A (8/20μs) lightning pulse shocks, with a peak pulse power of 60W. Combined with nanosecond-level response speed, it can instantly suppress electrostatic and surge interference. The adopted DFN1006 package (dimensions 0.55-0.65mm × 0.95-1.05mm × 0.35-0.45mm) saves over 40% space compared to traditional packages, supports lead-free reflow soldering processes (peak temperature 260℃), meets MSL reliability requirements, and is compatible with high-density PCB layouts.

The core advantages of the product are concentrated in three aspects:

● All-scenario protection: ±25kV ESD protection and 5A lightning tolerance cover common electromagnetic interference scenarios in consumer electronics;

● High-frequency compatibility: 15pF low junction capacitance has minimal impact on high-speed signal transmission, adapt to high-frequency interfaces of smart terminals;

● Energy efficiency and integration: 0.1μA ultra-low leakage current extends device battery life, and the DFN1006 package facilitates thin and light product design.

Application fields widely cover mainstream consumer electronics product lines: smartphones, tablets, smart TVs and set-top boxes, wearable devices, and PDAs, performing particularly well in electrostatically sensitive areas such as touchscreen interfaces and data transmission links.

A responsible person from Slkor's protection device division stated, "The core design of BTRD04A035 is 'balance' — achieving high-intensity protection within limited package space while maintaining low interference with high-frequency signals. This approach accurately responds to the current development trend of electronic devices 'emphasizing both functional integration and reliability'."

Currently, the BTRD04A035 has achieved stable mass production, adopting tape and reel packaging (10,000 pieces per reel) and supporting bulk purchasing. For technical manuals or samples, please visit Slkor's official website (SLKOR Semiconductor: Discrete Semiconductors, TVS、ESD、diodes、 components、transistors、mosfet、igbt、Rectifier、Discrete Power Devices、SCR、TRIAC、Zener Diode; Integrated Semiconductors, Op-amp、hall sensor、 Linear Regulator / LDO、DC-DC Convertor、AC-DC Convertor and Optocoupler) for details.

About Slkor：

SLKOR, headquartered in Shenzhen, China, is a rapidly emerging national high-tech enterprise in the power semiconductor sector. With R&D centers in Beijing and Suzhou, its core technical team originates from Tsinghua University. As an innovator in silicon carbide (SiC) power device technology, SLKOR's products are widely used in new energy vehicles, photovoltaic power generation, industrial IoT, and consumer electronics, providing critical semiconductor solutions to over 10,000 clients globally. The company delivers more than 2 billion units annually, with its SiC MOSFETs and 5th-generation ultrafast recovery SBD diodes setting industry benchmarks in efficiency ratio and thermal stability. SLKOR holds over 100 invention patents and offers 2,000+ product models, continually expanding its IP portfolio across power devices, sensors, and power management ICs. Certifications including ISO 9001, EU RoHS/REACH, and CP65 compliance demonstrate the company's steadfast commitment to technological innovation, lean manufacturing, and sustainable development.