WMSIC Electronic Components

TWGMC BZT52C4V3 Zener Diode BZT52C4V3

ModelBZT52C4V3
PackageSOD-123
BrandTWGMC
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TWGMC BZT52C4V3
Type
TWGMC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
BZT52C4V3
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.043g
Electronic Component
1
(Zzk)
600Ω
(Zzt)
90Ω
Electronic Component
BM0265082561
Diode
1
Current(Ir)
13uA
Power Dissipation(Pd)
500mW
Electronic Component
4V~4.6V
Electronic Component
55℃~+150℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

BZT52C4V3稳压二极管产品概述

BZT52C4V3是台湾迪嘉(TWGMC)推出的一款小型表面贴装稳压二极管,采用SOD-123封装,专为低功率、高密度电路的稳压及参考电平需求设计。产品具备宽温范围、低漏电流等特性,可广泛应用于消费电子、工业控制及物联网等领域。

一、产品基本属性

该型号属于独立式稳压二极管,核心功能为通过反向击穿特性提供稳定电压输出。品牌为TWGMC(台湾迪嘉),型号标识对应明确:

  • “BZT52”为小功率稳压管系列代码;
  • “C”代表封装类型(SOD-123);
  • “4V3”表示标称稳压值为4.3V。

封装采用SOD-123超小型表面贴装结构,典型尺寸约2.0mm×1.25mm×1.0mm,适配高密度PCB布局,同时支持自动贴装(SMT)工艺,降低生产难度。

二、核心电性能参数

产品电性能经标准化测试,关键指标清晰:

1. 稳压特性

  • 标称稳压值:4.3V(常温25℃典型值);
  • 稳压范围:4.0V~4.6V(覆盖温度及电流波动,满足实际应用需求);
  • 动态阻抗:
    • Zzt(额定电流下阻抗):90Ω(测试电流约10mA,体现稳压精度);
    • Zzk(拐点电流下阻抗):600Ω(反映反向击穿起始阶段特性)。

2. 功耗与电流

  • 最大耗散功率(Pd):500mW(常温允许的最大功耗,需结合环境温度降额);
  • 反向漏电流(Ir):
    • 典型值13uA(某反向电压测试条件);
    • 1V低电压下仅3uA,适合低功耗电路,减少待机损耗。

3. 温度特性

  • 工作结温范围:-55℃~+150℃(宽温设计,适配工业级环境高低温波动);
  • 稳压值温度系数约+2mV/℃(硅稳压管典型特性,满足一般精度需求)。

三、封装与可靠性

SOD-123封装具备三大优势:

  1. 小型化:尺寸远小于直插封装,节省PCB空间,适配智能穿戴、物联网模块等小型设备;
  2. 可靠性:塑封工艺抗机械冲击、耐环境湿度,符合工业级可靠性要求;
  3. 环保兼容性:符合RoHS无铅无卤标准,适配全球市场法规。

宽温范围是核心可靠性亮点,可在汽车电子(部分场景)、工业传感器、户外设备等极端温度下稳定工作。

四、典型应用场景

BZT52C4V3参数适配性强,覆盖以下典型场景:

1. 低电压稳压电路

作为辅助稳压元件,为3.3V系统提供4.3V微调基准,或用于小型电源模块输出稳压。

2. 信号电平参考

为比较器、ADC(模数转换器)、DAC(数模转换器)提供稳定4.3V基准,确保信号采集与转换精度。

3. 过压保护

利用反向击穿特性,过压时快速导通钳位至4.3V左右,保护MCU、传感器等敏感元件。

4. 低功耗设备

低漏电流(3uA@1V)、小功耗(500mW)适配智能手环、无线传感器节点等低功耗设备。

5. 工业控制电路

-55℃~+150℃宽温范围适配PLC、电机驱动电路的辅助稳压或保护需求。

五、选型与使用注意事项

1. 参数降额

  • 常温(25℃)Pd=500mW,环境温度升高需降额(如125℃时Pd约200mW);
  • 最大工作电流Izm≈116mA(500mW/4.3V),实际建议不超80mA(降额20%),延长寿命。

2. 精度适配

稳压范围4.0V~4.6V、动态阻抗90Ω,适合±7%精度需求;若需更高精度,需选带温度补偿的基准二极管(如LM4040)。

3. 替代参考

同参数同封装可替代型号:飞利浦BZX84C4V3、国巨ZMM4V3、旺诠RS1C4V3等。

BZT52C4V3是一款性价比高、参数均衡的小型稳压二极管,适合中小功率电路的稳压、参考及保护需求,宽温范围与小封装使其在工业及消费电子领域具备广泛应用潜力。

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