WMSIC Electronic Components

BZT52B5V6

ModelBZT52B5V6
PackageSOD-123
BrandYONGYUTAI
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
YONGYUTAI BZT52B5V6
Type
YONGYUTAI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YONGYUTAI
Electronic Component
BZT52B5V6
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.032g
Electronic Component
1
(Zzk)
400Ω
(Zzt)
40Ω
Electronic Component
BM0226337785
Diode
1
Current(Ir)
1uA@2V
Power Dissipation(Pd)
500mW
Electronic Component
5.49V~5.71V
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.

BZT52B5V6 — 永裕泰 5.6V 稳压二极管产品概述

一、产品简介

BZT52B5V6 是永裕泰(YONGYUTAI)出品的独立式稳压(齐纳)二极管,标称稳压值 5.6V,常用作低功耗电压基准与简单稳压电路。器件为 SOD-123 表面贴装封装,适合体积受限的消费类和工业电子产品中作局部电压钳位与参考源使用。

二、主要技术参数

  • 标称稳压值(Vz):5.6V
  • 稳压值范围:5.49V ~ 5.71V(器件间偏差小,利于一致性设计)
  • 功耗 Pd:500 mW(器件在适当散热条件下的最大耗散功率)
  • 反向电流 Ir:1 μA @ 2V(在 2V 反向电压时的泄漏电流,表明低漏电特性)
  • 阻抗 Zzk:400 Ω;阻抗 Zzt:40 Ω(分别代表在不同测试点或工作区间的动态阻抗,阻抗越小稳压能力越强)
  • 封装:SOD-123(表面贴装,小型化)

三、特性与优点

  • 稳压精度高:5.6V 的额定值和 5.49–5.71V 的实际范围,适合对基准电压有一定精度要求的应用。
  • 低泄漏电流:1 μA 的反向电流在低电流参考和传感电路中有利于降低误差。
  • 小型 SMD 封装:SOD-123 便于自动贴片,适合紧凑 PCB 设计。
  • 典型阻抗参数表明在测试电流下(Zzt = 40 Ω)有较好的瞬态稳压能力,而在拐点附近(Zzk = 400 Ω)表现为钝化上升,可用于评估在不同电流区间的稳压性能。

四、应用场景

  • 简单的稳压电源与基准源(低功耗、低成本场合)
  • 过压保护与电压钳位(接口保护、信号线钳位)
  • 电池管理与监测电路(参考电压、阈值检测)
  • 传感器与模拟前端的小电流偏置或参考电路

五、使用与热管理建议

  • 标称最大耗散功率为 500 mW,但 SOD-123 的散热能力受 PCB 布局和环境温度限制,推荐按温升和实际温度系数进行降额使用。
  • 理论最大稳压电流 Iz_max ≈ Pd / Vz = 0.5 W / 5.6 V ≈ 89 mA;实际连续工作电流应远低于该值并参考具体 PCB 散热条件,通常建议在此值的 20%–50% 范围内设计。
  • 采用较大铜箔敷铜、增加散热铜皮或多层接地平面可以显著提高器件的允许功耗。
  • 焊接按通用 SMD 回流曲线与 PCB 制造规范执行,避免长时间高温暴露影响可靠性。

六、典型电路与选型提示

  • 简单稳压电路:输入 Vin 通过限流电阻 R 与 BZT52B5V6 反向并联到地,实现稳压。R 的选取需同时满足负载电流与稳压二极管允许功耗的限制。
  • 若负载电流较大或需更稳定的参考,应采用齐纳驱动晶体管或专用稳压芯片配合齐纳参考,以减小稳压二极管的热应力与提高整体稳定性。
  • 选型时关注数据表的测试电流(Iz_test)和对应的 Vz、动态阻抗以及温度系数,实际电路性能受测试条件影响较大。

七、注意事项与结语

使用前建议查阅完整数据手册,确认测试条件(如 Iz_test、温度、封装热阻等)与电路工作点匹配;在关键参考或高可靠性应用,应对样机进行实际温度和负载下的稳压验证。BZT52B5V6 以其紧凑封装、较低的漏电与明确的阻抗参数,适合用于中低功耗的电压参考与保护场合,是性价比较高的通用齐纳选择。

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