DW52C3V9LED02 WBFBP02C Jiangsu Long Crystal Zener Diode Product Introduction

DW52C3V9LED02 WBFBP02C Jiangsu Long Crystal Zener Diode Product Introduction

DW52C3V9LED02 is a high-performance voltage regulator diode launched by Jiangsu Changjing Technology (JCET). It adopts an ultra small WBFBP02C chip package (size only 1.0 × 0.6 × 0.5mm), designed specifically for the precision circuit protection needs of modern electronic devices. As a leading domestic semiconductor enterprise, Changjing Technology relies on the technical accumulation of national packaging laboratories to develop this device into a power management solution that balances miniaturization and high reliability.

Core functions and technical parameters
DW52C3V9LED02 belongs to the Zener diode, and its core function is to achieve voltage clamping through reverse breakdown effect. When the reverse voltage reaches the critical value (nominal voltage stabilization value of 3.9V), the impedance of the device drops sharply, stabilizing the output voltage within a safe range and protecting the sensitive circuit at the back end from voltage fluctuations and damage. Its electrical characteristics include:
Accurate voltage regulation range: The nominal voltage regulation value is 3.9V, and the actual working range is 3.7V (Min) to 4.10V (Max). The testing condition is 5mA reverse current (I~ZT~), which meets the voltage tolerance requirements of precision circuits.
Dynamic impedance characteristics: The typical impedance value is 90 Ω (Z~ZT~) when the working current is 5mA, ensuring voltage stability during load changes.
Temperature adaptability: The temperature coefficient range is 3.5mV/℃ to 0mV/℃, suitable for harsh environments from 65 ℃ to+150 ℃, ensuring the stability of industrial grade equipment.
Low power design: Maximum power consumption of 100mW, reverse leakage current as low as 3 μ A (V~R~=1.0V), significantly reducing standby energy consumption.

Table: Key electrical characteristic parameters of DW52C3V9LED02
|Parameter Name | Typical Value | Unit|
||||
|Nominal voltage regulation value | 3.9 | V|
|Voltage stabilization range | 3.7~4.10 | V|
|Test current (I~ZT~) | 5 | mA|
|Dynamic impedance (Z~ZT~) | 90 | Ω|
|Reverse leakage current | 3 | μ A|
|Working temperature range | 65~+150 | ℃|

Packaging and structural advantages
The WBFBP02C package adopts lead-free environmentally friendly materials, complies with RoHS standards, supports tape&reel packaging, and is perfectly adapted to the automated mounting process of SMT production lines. Its miniaturized design (with a thickness of only 0.5mm) saves over 90% of PCB space, making it particularly suitable for compact electronic products such as wearable devices and microsensors. The thermal resistance of the package is as low as 1250 ℃/W, and the reliability under high temperature conditions is improved by optimizing the heat dissipation path.

Typical application scenarios
1. Portable electronic devices: used as power management modules for smartphones, TWS earphones, and other products to prevent IC damage caused by lithium battery voltage fluctuations.
2. LED driver circuit: As a voltage regulator for AlGaInP material LED arrays, it avoids the problem of light decay caused by overvoltage (see material characteristics).
3. Industrial control system: Provide transient voltage suppression (TVS) in PLC modules and sensors to resist voltage spikes caused by motor start stop or relay on-off.
4. Automotive Electronics: Suitable for 12V/24V power bus stabilization of in car navigation and entertainment systems, meeting the temperature requirements of vehicle specifications ranging from 40 ℃ to 125 ℃.

Technical advantages
Localization guarantee: Changjing Technology achieves full process independent production and has the inventory capacity for daily finished product warehousing, which can quickly respond to large customer batch orders.
Full inspection quality control: Each device undergoes avalanche breakdown characteristic testing to ensure 100% compliance with the voltage stabilization accuracy requirements of 3.7V~4.10V.
Cost optimization: The manufacturer's direct sales model eliminates intermediate links, reducing procurement costs by about 30% compared to imported similar devices such as Anson Semiconductor and STMicroelectronics.

summarize
DW52C3V9LED02 WBFBP02C represents a technological breakthrough in the miniaturization and high reliability of domestically produced voltage regulator diodes. Its 3.9V precise voltage regulation, 100mW low power consumption, and industrial grade temperature adaptability provide a cost-effective circuit protection solution for fields such as consumer electronics, automotive electronics, and industrial control. Jiangsu Changjing Technology continues to promote the penetration of domestic semiconductor devices in high-end application scenarios through full process quality control and automated packaging processes, helping China's intelligent manufacturing to upgrade its competitiveness in the global electronics industry chain. Engineers need to focus on evaluating the matching between the actual working current and dynamic impedance when selecting, and ensure that the PCB layout meets the heat dissipation requirements of the WBFBP02C package.