WMSIC Electronic Components

Jingdao Microelectronics BZT52C5V1W

ModelBZT52C5V1W
PackageSOD-123
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic BZT52C5V1W
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
BZT52C5V1W
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.036g
Electronic Component
1
(Zzt)
60Ω
Electronic Component
BM0255080984
Diode
1
Current(Ir)
2uA@2V
Power Dissipation(Pd)
500mW
Electronic Component
4.8V~5.4V
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.

BZT52C5V1W 稳压二极管(晶导微电子)产品概述

一、产品简述

BZT52C5V1W 是晶导微电子推出的一款独立式稳压二极管(Zener 二极管),采用 SOD-123 表面贴装封装,标称稳压值 5.1V,稳压范围 4.8V~5.4V。器件适用于低功耗电压参考、浪涌钳位与稳压保护等场景,单体体积小、封装方便,适合批量贴装与紧凑型电路设计。

二、主要参数与特性

  • 稳压值(标称):5.1V
  • 稳压值范围:4.8V ~ 5.4V(出厂分选范围)
  • 反向电流 Ir:2 μA @ 2V(反向泄漏电流)
  • 耗散功率 Pd:500 mW(器件最大耗散功率,基于规定散热条件)
  • 阻抗 Zzt:60 Ω(动态阻抗,典型或测试条件请参见厂商数据手册)
  • 工作结温范围:-55 ℃ ~ +150 ℃
  • 封装:SOD-123(表面贴装)
  • 配置:独立式(单个稳压二极管器件)

这些参数表明该器件适用于小电流、低功耗的基准与保护用途。较高的动态阻抗意味着在较大电流变化下输出电压会有一定幅度的摆动,需要在电路设计时考虑串联限流或使用并联稳压方案以降低输出波动。

三、典型应用场景

  • 低功耗电压基准或参考源(小电流条件下)
  • 电源浪涌钳位与输入/输出保护(对瞬态电压提供简单削峰)
  • 信号接口的过压保护与限幅
  • 小型便携设备、传感器模块和通信设备中作为辅助稳压元件

四、设计与使用建议

  1. 工作方式:二极管通常在反向击穿区域工作以实现稳压功能,设计时需确保串联限流元件提供稳定的工作电流。
  2. 耗散与降额:Pd=500 mW 是在规定试验条件下的最大耗散,请根据实际 PCB 散热条件及环境温度进行降额使用。高结温会显著降低允许耗散,建议查阅厂商的功率-温度降额曲线并设计合适的热路径。
  3. 动态阻抗与滤波:Zzt=60 Ω 显示在较高动态负载下稳压稳定性有限,若要求低纹波或更稳压性能,可在二极管前并联大电容或采用精密稳压器件。
  4. 反向漏流:在低电压偏置或高温环境下,反向泄漏电流会增加,关键电路需考虑 Ir 对偏置和精度的影响。
  5. PCB 布局:SOD-123 封装适合紧凑贴装,焊盘与走线应保证良好散热与机械强度,推荐按厂家提供的封装推荐位号设计焊盘并作热仿真验证。

五、热与可靠性注意事项

  • 环境温度上限 +150 ℃ 指的是结温范围,但长期工作时应避免接近极限值以延长寿命。
  • 在高温或高功率工作条件下,器件需采取降额、增加铜箔散热或热孔通孔等散热措施。
  • 出货前建议参考晶导微电子的可靠性与焊接说明(回流焊曲线)以保证装配一致性与长期稳定性。

六、封装与采购信息

  • 品牌:晶导微电子(Jingdao Microelectronics)
  • 型号:BZT52C5V1W
  • 封装:SOD-123(表面贴装)
  • 适合自动贴片 SMT 生产线,备货与采购时请注意批次与参数分选(稳压范围与静态参数的出厂公差)。

七、典型电路与注意点

  • 作为简单稳压:在输入电源与负载之间串联限流电阻,二极管反相并联至地,以实现稳压。限流电阻选择需满足在最大负载时二极管电流不超过 Pd 限制且在最小负载时仍能达到稳压区。
  • 作为浪涌钳位:将二极管并联在受保护节点,面对短时过压时吸收能量,但需注意能量吸收能力受 Pd 和脉冲特性限制,严重浪涌应配合 TVS 或其他抑制元件使用。

结语:BZT52C5V1W 提供了体积小、成本低且便于贴装的 5.1V 稳压解决方案,适合低功耗参考与简单保护用途。为保证最终系统性能,建议在设计阶段参考晶导微电子完整数据手册、热特性与典型应用电路并进行样机验证。

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