WMSIC Electronic Components

Jingdao Microelectronics BZT52C9V1W

ModelBZT52C9V1W
PackageSOD-123W
BrandElectronic
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic BZT52C9V1W
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
BZT52C9V1W
Electronic Component
1
Package
SOD-123W
Electronic Component
Zener Diode
Electronic Component
0.03g
Electronic Component
1
(Zzt)
15Ω
Electronic Component
BM0264379818
Diode
1
Current(Ir)
500nA@6V
Power Dissipation(Pd)
500mW
Electronic Component
8.5V~9.6V
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component

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

BZT52C9V1W(晶导微电子)产品概述

一、产品简介

BZT52C9V1W 是晶导微电子推出的一款小功率稳压二极管,封装为 SOD-123W,适合表面贴装应用。器件标称稳压值为 9.1V,规定稳压范围为 8.5V 至 9.6V,主要用于低功耗稳压、基准电压、浪涌/过压钳位及信号电路保护等场景。

二、主要技术参数

  • 二极管配置:1 个独立式(单只)
  • 稳压值(标称):9.1V
  • 稳压值范围:8.5V ~ 9.6V
  • 反向电流 Ir:500 nA @ 6V(典型,低泄漏)
  • 耗散功率 Pd:500 mW(器件额定耗散)
  • 阻抗 Zzt:15 Ω(动态阻抗,测量条件见规格书)
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 封装:SOD-123W(小型表面贴装封装)

三、主要特性与优势

  • 低泄漏:在低偏压情况下反向漏电流极小,适合高阻抗或待机电流敏感的电路。
  • 低功耗稳压:0.5W 的耗散能力适合小信号或低功率片上/板级稳压场合。
  • 紧凑封装:SOD-123W 体积小,便于高密度电路板布局和自动化贴装;
  • 良好动态阻抗:Zzt ≈ 15 Ω,有利于在规定电流范围内提供稳定电压。

四、电气设计参考与计算

  • 最大允许稳流(近似值):Iz_max ≈ Pd / Vz = 0.5 W / 9.1 V ≈ 54.9 mA。实际设计应留裕量并参照厂方温度降额曲线。
  • 串联限流电阻计算示例(以 Vin = 12 V 为例):
    • 为保证 Iz 不超过 Iz_max,R_min = (Vin − Vz) / Iz_max ≈ (12 − 9.1) / 0.0549 ≈ 53 Ω。
    • 若设计工作 Iz = 10 mA,则 R = (12 − 9.1) / 0.01 ≈ 290 Ω(此值可保证更佳稳压性能与器件寿命)。
  • 动态阻抗对稳压精度有影响:在较大电流变动时,Vz 会随 Iz 变化,需将 Zzt 与电流波动一并纳入误差预算。

五、典型应用场景

  • 低功耗便携设备的 9.1V 参考、偏置与简单稳压;
  • 信号线或输入端的过压钳位与浪涌保护;
  • 测试与测量电路中的低成本电压基准;
  • 通讯设备、传感器前端、模拟电路的保护和稳压模块。

六、封装与焊接建议

  • SOD-123W 为表面贴装小封装,推荐使用回流焊工艺。具体回流温度曲线请参照晶导微电子的封装与焊接规范;
  • 为了降低结温、提高可靠性,建议在 PCB 设计时为二极管提供适量铜箔散热区,必要时在散热区加过孔利于散热;
  • 布局上尽量将稳压二极管靠近被保护元件或负载,并避免把热源直接布置在旁侧。

七、选型与使用注意事项

  • 注意稳压精度需求:器件稳压范围为 8.5V~9.6V,若电路对稳压精度要求高,应选择更高精度或温度系数更优的型号;
  • 温度与功率降额:在高环境温度下,器件可承受的耗散功率会下降,设计时应按厂方提供的温度-功率降额曲线计算;
  • 最大浪涌与瞬态:尽管器件能提供过压钳位功能,但对于高能量冲击或重复浪涌需配合限流电阻或瞬态抑制器(TVS);
  • 参考原厂规格书:本文为应用概述,详细电气特性、测试条件与封装尺寸请以晶导微电子出具的完整规格书为准。

如需根据具体电源条件(输入电压、最大负载、工作温度)给出精确的限流电阻值、热设计或 PCB 布局建议,可提供电路参数以便进一步计算与优化。

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