DW52C3V3LED02 WBFBP-02C Zener diode
Date：2025-08-07
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product overview
DW52C3V3LED02 is a high-performance Zener diode launched by Jiangsu Changdian Technology (JCET), belonging to the category of discrete semiconductor devices. It adopts advanced WBFBP02C ultra small surface mount packaging (with a size of only 1.0 × 0.6 × 0.5mm). This device is based on the AlGaInP material process and is designed specifically for precision voltage regulation requirements. Its core function is to stabilize the circuit voltage at a nominal value of 3.3V (actual range 3.1V-3.5V), making it suitable for electronic systems with limited space and sensitivity to voltage fluctuations.
Technical parameters and performance characteristics
1. Precise voltage regulation characteristics
Under the test current of 5mA (I<sub>ZT</sub>), the device can achieve a voltage stabilization accuracy of 3.3V ± 6%, with a maximum Zener impedance of 600 Ω. Its reverse leakage current (I<sub>R</sub>) is as low as 5 μ A (25 ℃), effectively reducing standby power consumption. In addition, the temperature coefficient is 3.5mV/° C, indicating that the stability of the output voltage can still be maintained within a wide temperature range of 65 ℃ to+150 ℃.
2. High reliability design
The maximum power consumption of the device is 100mW, with a thermal resistance of 1250 ℃/W. It adopts a leadless packaging structure, which not only improves heat dissipation efficiency, but also is compatible with automated assembly processes such as reflow soldering. It integrates a Guardring internally, which can withstand a single surge current of 8.3ms (peak 100A) and enhance its overload resistance.
3. Breakthrough advantages of small packaging
The packaging volume of WBFBP02C is reduced by 70% compared to traditional SOD packaging, and the weight is only 0.011 grams. This design significantly saves PCB space and optimizes electrical connections through metal silicon junction technology, achieving a low forward voltage drop of 0.9V (I<sub>F</sub>=10mA), suitable for high-density circuit board design.
Working principle and core values
DW52C3V3LED02 utilizes the reverse breakdown avalanche effect of PN junction to achieve voltage stabilization: when the reverse voltage approaches the breakdown threshold (3.1V-3.5V), the current increases sharply while the voltage remains constant, thereby suppressing input fluctuations. This characteristic makes it a key component of power protection circuits, such as:
Transient voltage suppression: absorbs power supply spikes to prevent damage to the downstream IC;
Reference voltage generation: provides a stable reference source for ADC and sensors;
Signal clamp: Limit the voltage peak of interface circuits (such as USB, HDMI).
Typical application scenarios
With its miniaturization and high reliability, this device is widely used in portable and high-speed electronic devices
Consumer electronics: power management modules for mobile phones and tablets, audio circuit protection for MP3 players;
Communication interface: ESD protection for high-speed data lines such as HDMI and DisplayPort, replacing traditional MLV varistors;
Industrial control: voltage reference source for PLC module, sensor signal conditioning circuit.
Production and Quality Assurance
Changjing Technology relies on fully automated production lines and strict testing processes to ensure that devices undergo 100% full inspection before leaving the factory. Its advantages include:
1. Supply chain advantages: With a monthly production capacity of tens of millions, it supports bulk delivery to large customers;
2. Environmental compliance: Compliant with RoHS and halogen-free standards (marked with the suffix "H" in the packaging);
3. Cost control: The manufacturer's direct sales model reduces circulation links and lowers procurement costs.
summarize
DW52C3V3LED02 solves the contradiction between space and stability in high-density electronic design through precise 3.3V voltage regulation, ultra micro packaging (WBFBP02C), and industrial grade temperature adaptability. Its low leakage and high surge tolerance characteristics further enhance system reliability, making it an ideal choice for portable devices and communication interface protection. The integrated production chain of Changjing Technology provides a dual guarantee of quality and cost for this device, strengthening its competitiveness in the voltage regulator diode market.
