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Find a switching diode – get to know the Slkor Micro 1N4148W
2026-09-07
1448
In electronic product design, a single small diode can often significantly impact the overall power consumption, heat dissipation, and signal quality of the device. The 1N4148W switching diode, launched by Slkor Semiconductor, is specifically designed to address these practical challenges. This product features a SOD-123 package and offers characteristics such as fast switching response, low forward voltage drop (VF), and low reverse leakage current (IRM), enabling effective power consumption control while ensuring signal integrity.
1N4148W: Performance Specifications, Product Features, and Application Fields
The Slkor 1N4148W is a general-purpose small-signal switching diode featuring a reverse recovery time of just 4 ns, a forward voltage drop as low as 1.0 V, and a reverse leakage current of 25 nA. The SOD-123 surface-mount package offers a compact board footprint and lightweight design, making it ideal for automated assembly lines and ensuring high soldering reliability. With an operating junction temperature range of-65°C to +150°C, this diode meets the diverse application requirements of switching power supplies, industrial control systems, and consumer electronics.
Core Parameters
Reverse Repeat Peak Voltage (VRRM): 75 V;
Forward average current (IO): 150 mA;
Forward voltage drop (VF): 1.0 V;
Reverse leakage current (IRM): 25 nA;
Reverse recovery time (Trr): 4 ns;
Dissipated power (Pd): 410 mW;
Operating temperature range: -65°C to +150°C.
Product Features
High conductivity with low conduction loss;
Fast switching speed – reverse recovery time of just 4 ns;
Surface-mount package, ideal for automated placement;
Suitable for general-purpose switching applications;
The plastic material meets the UL-approved flame retardancy rating of 94V-O.
Slkor 1N4148W Product Specification Sheet
Primary Application Areas
Consumer electronics: smart door locks, wearable watches, Bluetooth earbuds, portable blood oxygen saturation monitors, etc.;
Industrial control: sensor signal isolation, optocoupler driving, gate protection, relay current continuity, etc.;
Computers and peripherals: the signal control section for motherboards, graphics cards, keyboards, routers, and power adapters.
Product ID
Manufacturer Model
specifications
Brand Name
category
C444720
1N4148W
SOD-123
Slkor (Slkorwei)
switching diode
About Slkor
Shenzhen Slkor Microelectronics Co., Ltd. was founded in 2015 by Mr.Song Shiqiang in Huaqiangbei, Shenzhen. Initially focused on the research, development, and manufacturing of power devices such as silicon carbide MOSFETs and IGBTs, the company has now expanded its product portfolio to include TVS (Transistor-Transistor-Schottky) static protection diodes, Schottky diodes and transistors, as well as the R&D and manufacturing of analog chips—including power management solutions, Hall sensors, and operational amplifiers. The company's core technical team comprises professionals from Yonsei University and Tsinghua University in South Korea. Slkor has obtained certifications including ISO9001, ISO14001, California Proposition 65 compliance, RoHS, and REACH; it maintains a robust quality management system and ensures stable, reliable delivery. Guided by the philosophy "Slkor: Driving the Future with Microelectronics," the "Slkor" brand has provided products and supporting technical services to tens of thousands of customers worldwide. The company's vision is to become an internationally influential and competitive semiconductor enterprise!
Do You Know These Twenty Types of Diodes?
2025-11-19
3789
This article introduces twenty different types of diodes, including Zener diodes, Schottky diodes, ESD, TVS and Switching diode, etc
Introduction to MOSFET SOT-23 Package
2025-11-14
4052
The SOT-23 is a very common and widely used surface-mount semiconductor package, particularly suited for low-power transistors (including MOSFETs, BJTs), diodes, and integrated circuits.
Invisible Forces, Tangible Electricity: How Do Hall Sensors Work?
2025-11-10
3731
Have you ever wondered why the screen of your laptop turns off when you close the lid? Or why the screen of your smartphone rotates when you flip it over? Or how the motor of an electric vehicle can control its speed so precisely? These phenomena all rely on the work of an unsung hero—the Hall sensor.
What’s the Difference Between a MOSFET and a Bipolar Transistor?
2025-11-04
3791
When diving into the world of electronics, two types of components you’ll often encounter are MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) and regular transistors. These components are both essential for controlling the flow of electrical current, but they operate in different ways and serve different purposes. Let’s explore the key differences between them.
In-Depth Analysis of DC-DC Switching Regulator Quiescent Current: Definition, Characteristics, and Applications
2025-08-14
3812
Article OverviewIn this article, Slkor explores the quiescent current (IQ) of DC-DC switching regula
What is an operational amplifier?
2025-07-22
4726
?An Operational Amplifier (abbreviated as op-amp) is a direct-coupled, differential mode input, typically single-ended output high-gain voltage amplifier. It can generate an output potential (relative to ground) that is hundreds of thousands of times larger than the potential difference at the input. It got its name because it was initially mainly used in analog computing circuits such as addition and subtraction operations.
Basic Principles of Thyristors
2025-07-21
4954
Thyristor conduction conditions: First, a forward voltage must be applied between the anode and cathode of the thyristor; second, a forward voltage must also be applied to the gate.
Basic Working Principle and Usage Method of Data Converters
2025-07-21
4793
?A data converter is an instrument, device, and also an electronic component. Its main function is to convert other types of electrical energy signals into another type, and can convert one type of electrical energy factor signal into another. Data conversion can be divided into two main categories: electrical energy signal conversion and electrical energy factor signal conversion. The following is a detailed introduction by AMEYA360 Electronic Component Purchasing Network: the basic working principle and usage method of data converters.
What is the principle of the Hall sensor and what is its use?
2025-07-21
4320
The Hall effect is caused by the interaction between the corresponding electric and magnetic fields of charged particles (such as electrons). For a more vivid and intuitive understanding, you can refer to the animation diagram of the Hall effect principle below.
Electrostatic Discharge (ESD) Diodes: Invisible Guardians of Circuit Protection
2025-07-18
4061
Electrostatic discharge (ESD) is a phenomenon where charge accumulated on an object’s surface is rapidly released, such as the "electrical shock" feeling when a human touches an electronic device. The voltage released in an instant can reach thousands of volts or higher, causing permanent damage to semiconductor chips. For example, when a static-charged finger touches a phone interface, ESD current may 击穿 (break down) the gate oxide inside the chip through the circuit, leading to device failure.
Function of TVS and the Working Principle & Application of Its Protection Circuit
2025-06-19
4130
This article explores the working principle of TVS diodes and their wide range of applications in fields such as overvoltage protection, ESD protection, and lightning surge protection, revealing their significant value as core components for circuit protection.
mastering Chip Etching Machines: Key Insights for Smarter Electronics Manufacturing
2025-05-16
4227
A chip etching machine is a specialized tool used in semiconductor manufacturing to selectively remove material from silicon wafers. This process, known as etching, creates intricate circuit patterns essential for modern electronics. The precision of a chip etching machine ensures components meet exact design specifications, making it indispensable in producing devices like smartphones and computers. Unlike traditional mechanical methods, advanced machines use plasma or chemical reactions for nanoscale accuracy. For example, companies such as Applied Materials and Lam Research dominate this field, offering systems that integrate automation for higher throughput. Learn more about semiconductor processes at Semiconductor Industry Association.
Twenty Years Later: Arduino Is Far More Than Just Arduino
2025-05-15
3868
This article explores the evolution of Arduino from an open-source hardware platform to an expanded ecosystem, highlighting its profound impact across multiple domains.
Inside Chip Design Companies: Innovations Powering Next-Gen Consumer Electronics
2025-05-13
4000
A chip design company specializes in creating integrated circuit (IC) blueprints used in devices ranging from smartphones to AI systems. These firms transform conceptual designs into manufacturable layouts, leveraging tools like electronic design automation (EDA). Unlike semiconductor foundries, chip design companies focus solely on innovation, enabling consumer electronics brands to outsource complex R&D. For procurement teams, partnering with such firms ensures access to cutting-edge technology without heavy upfront investments in design infrastructure.
From Design to Production: How Wafer Foundries Drive Consumer Electronics Innovation
2025-05-13
4050
A wafer foundry is a specialized facility that manufactures silicon wafers, the foundational component of semiconductors. These facilities play a critical role in producing integrated circuits (ICs) used in devices like smartphones, laptops, and IoT gadgets. Unlike integrated device manufacturers (IDMs), wafer foundries focus solely on fabrication, enabling cost-effective scaling for consumer electronics companies. The process involves photolithography, etching, and doping to create intricate circuits on silicon substrates. For procurement teams, understanding this supply chain step ensures better vendor negotiations and quality control.
OSAT in Consumer Electronics: A Strategic Guide for Procurement & Engineering Teams
2025-05-12
4205
A Semiconductor Assembly and Testing Facility, or semiconductor assembly and testing facility, plays a critical role in the electronics manufacturing ecosystem. These facilities specialize in the final stages of semiconductor production, including packaging integrated circuits (ICs) and rigorously testing their functionality. For procurement and engineering teams in consumer electronics, understanding the capabilities of a Semiconductor Assembly and Testing Facility ensures efficient supply chain management and product reliability.
Analog-to-Digital Converters (ADCs) Explained: Key Specifications, Applications and selection Guide
2025-05-10
4068
Understanding Analog-to-Digital Converters (ADCs) is essential for optimizing product performance in consumer electronics. By prioritizing parameters like resolution and power efficiency, procurement and engineering teams can select ADCs that align with technical and budgetary requirements. For deeper insights, explore resources from IEEE, a leader in electronic engineering standards.
PCB Essentials: A Comprehensive Guide for Electronics Procurement and Engineering Teams
2025-05-10
4460
Discover everything about PCB, including its history, characteristics, parameters, roles, applications, and leading manufacturers. Essential reading for procurement and engineering teams in consumer electronics.
Analysis of the Differences and Characteristics Between Current Sense Amplifiers and Differential Amplifiers
2025-05-08
4026
In this article, we compares current sense amplifiers and differential amplifiers, analyzing their architectures, performance characteristics, and application differences. The advantages of current sense amplifiers in bandwidth, common-mode rejection ratio (CMRR), and high-frequency applications are highlighted.




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