July 21, 2025

With its compact SOD-323 package saving space, 30pF low junction capacitance ensuring high-frequency signal integrity, and ±15kV protection capability safeguarding device stability.

Slkor has released the SLESD323NC5VB series of electrostatic discharge (ESD) protection diodes, featuring a compact SOD-323 package. Designed specifically for high-frequency data links in mobile devices, communication systems, and computer hardware, these diodes resist ESD and electrical fast transients (EFT) through precise electrical characteristics and high protection performance, ensuring circuit signal integrity and device stability.

The device adopts an ultra-compact SOD-323 package (maximum dimensions 1.4mm×1.8mm), significantly saving circuit board space and meeting layout requirements for miniaturized devices such as mobile phones and tablets. The package technology optimizes parasitic parameters, and combined with a typical 30pF junction capacitance (test conditions: V_R=0V, f=1MHz), it minimizes transmission interference to high-speed signal links like USB 2.0, VGA, and DVI, ensuring "lossless" transmission of high-frequency data.

Tailored for 5V low-voltage circuit systems, the SLESD323NC5VB achieves precise performance balance: the reverse working voltage (V_RWM) reaches 5.0V, matching the conventional power supply needs of consumer electronics and communication devices; the minimum reverse breakdown voltage (V_BR) is 5.8V (test current 1mA), maintaining a high-impedance state under normal conditions to avoid false triggering; the clamping voltage (V_C) is only 9.8V at 1A current and a maximum of 20V at 25A, quickly limiting overvoltage to a safe range to protect backend chips; the maximum reverse leakage current (I_R) is 1μA, with extremely low power consumption helping to extend battery life.

In terms of protection performance, the device is certified to IEC 61000-4-2 (ESD) standards, with an air discharge protection level of ±15kV and contact discharge of ±8kV, easily handling daily shocks from human static electricity and equipment friction; it also meets IEC 61000-4-4 (EFT) test requirements, withstanding 40A (5/50ns) electrical fast transients and 400W (8/20μs) peak pulse power, building an "anti-interference barrier" for data links.

Thanks to its compact package and high-frequency adaptability, the SLESD323NC5VB is widely used in scenarios such as high-speed interfaces (USB 2.0, VGA, DVI, SDI), terminal devices (mobile phones, laptops, portable instruments), and communication systems (sensitive circuits in routers and base stations). It is particularly a top choice for engineers in designs with dual requirements of "compact space + pure signals".

A responsible person from Slkor's protection device product line stated: "High-frequency and miniaturized development is an inevitable trend for electronic devices, and ESD protection needs to strike a precise balance between 'low interference' and 'strong protection'. The SLESD323NC5VB, with its 5V adaptive voltage, 30pF low junction capacitance, and SOD-323 package, responds to the market's demand for 'efficient protection + high-frequency compatibility'. We will continue to deepen our efforts in the future to provide more customized solutions."

Currently, the SLESD323NC5VB is in stable mass production, supporting 7-inch tape and reel packaging (3000 units per reel) for automated production lines. For more technical details or sample applications, 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).

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.