WMSIC Electronic Components

YANGJIE BZT52C11

ModelBZT52C11
PackageSOD-123
BrandYANGJIE
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

13 specifications

Core information

Product name
YANGJIE BZT52C11
Type
SOD-123
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
BZT52C11
Electronic Component
1
Package
SOD-123
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0230631406
Electronic Component
Electronic Component
Electronic Component
3000

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

BZT52C11 稳压二极管产品概述

一、产品简介

BZT52C11 是扬杰(YANGJIE)生产的一款小功率稳压(齐纳)二极管,标称稳压值为 11V,最大耗散功率 500mW,封装为 SOD-123。该器件为独立式单个二极管,适用于中低功耗的稳压基准、过压保护与电压钳位场合,具有漏电流小、稳压阻抗低的特点,适合表面贴装工艺。

主要电气参数(典型/典型测试条件):

  • 稳压值(标称):11V(范围 10.4V ~ 11.6V)
  • 反向电流 Ir:100 nA @ 8V
  • 耗散功率 Pd:500 mW
  • 稳压阻抗 Zzt:20 Ω(工作区动态阻抗)
  • 低电流区阻抗 Zzk:150 Ω
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 封装:SOD-123
  • 品牌:YANGJIE(扬杰)

二、主要特性与优点

  • 低反向泄漏:在 8V 条件下漏电仅 100 nA,适合对静态电流敏感的便携与仪表类应用。
  • 稳压性能稳定:Zzt 约 20 Ω,意味着在合理工作电流范围内具有较好的稳压能力与较小的动态误差。
  • 小型 SMD 封装(SOD-123):占板面积小,便于自动贴装与批量生产。
  • 宽温度范围:-55℃ 至 +150℃,适应工业级温度环境。
  • 功耗适中:500 mW 的功率等级可满足多数小功率偏置和基准场合。

三、典型应用场景

  • 低功耗电源的参考/钳位电路
  • 模拟电路偏置(运放参考、比较器偏置)
  • 通信与便携设备的电压保护
  • 单片机系统的稳压基准(作为辅助参考)
  • 信号线过压钳位和浪涌抑制(需配合限流元件)

四、使用要点与设计建议

  • 选择稳压电流 Iz:为获得较好稳压精度,应在 Zzt 指定的测试电流附近工作,常见取值为几 mA。例:若 Vin = 15V,希望在稳压时流过二极管 Iz = 5 mA,则限流电阻 R = (Vin - Vz) / Iz = (15 - 11) / 5 mA = 800 Ω。
  • 功率与极限电流:器件最大稳态耗散 Pd = 500 mW,则理论允许最大电流 Iz_max ≈ Pd / Vz = 500 mW / 11 V ≈ 45 mA。但实际使用应留有裕量并考虑封装散热,建议远低于该极限值以提高可靠性。
  • 漏电影响:在微安级或更低电流工作时,反向漏电 Ir(100 nA @ 8V)会影响稳压精度,应在设计时评估漏电带来的偏差并适当增大工作 Iz。
  • 温度影响:结温对稳压值和功耗有影响,实际最大耗散能力随环境温度上升而下降。SOD-123 为小功率 SMD 封装,散热能力有限,长期工作时建议做功率降额设计并在 PCB 布局上考虑散热通道。

五、典型电路示例

  • 基本稳压:串联电阻 R 与 BZT52C11 的反向并联到负载,以维持输出在 ~11V。选择 R 需同时满足最小/最大输入电压工况下对 Iz 的要求及功率损耗限制。
  • 过压保护:将 BZT52C11 并联在被保护节点,正常情况下无显著影响,过压瞬间导通钳位电压,配合限流电阻或瞬态抑制元件使用更安全。

六、封装与可靠性提示

  • SOD-123 适合自动化贴装和小型成品,焊接时注意回流曲线与温度限制以避免封装损伤。
  • 对长期稳定性有更高要求的场合,应在器件额定功耗以下运行并留有裕量;对环境温度较高或通风受限的系统,建议通过热仿真或实测确认结温情况。

总结:BZT52C11(YANGJIE,SOD-123)为一款小型、低漏电、动态阻抗较低的 11V 稳压二极管,适合多种中低功耗稳压与保护应用。设计时结合限流电阻、工作电流与热管理进行合理选型与布局,可发挥其稳定、可靠的稳压特性。

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