WMSIC Electronic Components

YANGJIE BZT52B5V1

ModelBZT52B5V1
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 26+

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
YANGJIE BZT52B5V1
Type
SOD-123
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YANGJIE
Electronic Component
BZT52B5V1
Electronic Component
1
Package
SOD-123
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0229969664
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.

BZT52B5V1 产品概述

一、产品简介

BZT52B5V1 是扬杰(YANGJIE)推出的一款独立式稳压二极管,标称稳压值为 5.1V,实际稳压范围为 5.0V~5.2V。该器件采用 SOD-123 小封装,额定耗散功率 Pd=500mW,具有低漏电、低阻抗的特点,适合用于低功耗分压/稳压和浪涌钳位等场合。产品工作结温范围宽 (-55℃~+150℃),可靠性高,适合消费电子、通信、工业控制等多种应用。

二、主要技术参数

  • 型号:BZT52B5V1(稳压二极管,独立式)
  • 品牌:YANGJIE(扬杰)
  • 封装:SOD-123(小型表面贴装)
  • 稳压值(标称):5.1V
  • 稳压值(范围):5.0V ~ 5.2V
  • 反向电流 Ir:100nA @ 0.8V(典型测量条件)
  • 阻抗 Zzt:60Ω(测试工作点下的动态阻抗)
  • 最大耗散功率 Pd:500mW(在指定散热条件下)
  • 工作结温范围:-55℃ ~ +150℃

三、封装与热管理

SOD-123 为常用的小型表面贴装封装,适用于自动贴片与回流焊工艺。尽管器件额定耗散功率为 500mW,但受限于小封装的散热能力,实际应用中需注意热设计:

  • PCB 布局上尽量在焊盘周围增加铜箔面积以提高散热;对功耗较高的场合,可连接到较大的铜地/电源平面并辅以热盲孔或过孔导热。
  • 对于靠近高温器件或多器件密集散热区域,应留足热隔离距离或采用降额使用。
  • 焊接时遵循厂商提供的回流焊曲线,避免过度加热影响可靠性。

四、典型应用场景

  • 小电流低功耗稳压源:为传感器、参考电路或低速模拟电路提供简单稳压。
  • 过压/浪涌钳位:保护输入端或敏感器件免受瞬态过电压冲击。
  • 电平转换与偏置网络:在电路中用作基准或偏置稳压元件。
  • 电池供电设备的局部稳压或卸载保护电路。

五、实用设计建议

  • 串联限流电阻计算:稳压二极管需配合串联电阻 Rs 使用,Rs = (Vin - Vz) / Iz,其中 Iz 为通过稳压管的工作电流。
    例如:在 Vin=12V、Vz≈5.1V、目标 Iz=10mA 时,Rs ≈ (12 - 5.1) / 0.01 ≈ 690Ω,Rs 功率 P ≈ (12 - 5.1) * 0.01 ≈ 0.069W。
  • 最大允许电流:理论上 Imax ≈ Pd / Vz ≈ 500mW / 5.1V ≈ 98mA,但考虑封装散热限制与安全余量,实际设计中建议远低于此值并参考厂商数据手册的热阻与降额曲线。
  • 动态阻抗影响稳压精度:Zzt=60Ω 表明在小电流工作点时稳压二极管的输出随电流变化较显著,若需更精确的基准,应采用专用基准源或减小电流变化范围。
  • 漏电问题:在高阻抗或需要极低偏置电流的电路中,需关注反向漏电(Ir)对电路的影响;在很低工作电流时,Ir 可能成为误差来源。

六、选型与替代建议

  • 若需更稳定的电压参考或更低动态阻抗,可考虑使用低阻抗的稳压二极管型号或线性稳压器/基准源芯片。
  • 若应用要求更高功率耗散或更好散热能力,可选择更大封装(如 SOD-123F、DO-214 等)或采用并联/分流设计(需谨慎电流均衡)。
  • 在高精度测量应用,建议优先使用专用基准芯片替代小封装的稳压二极管。

七、储存与可靠性要点

  • 出厂后按照元器件常规存储条件保存,避免潮湿、酸碱环境与机械损伤。
  • SMT 器件应关注潮湿敏感等级(MSL),按厂家推荐的回流焊前预烘及回流曲线处理以避免焊接时产生吸湿膨胀导致的可靠性问题。
  • 生产与维修过程中注意静电防护,避免因静电放电引起器件性能失常。

以上为 BZT52B5V1 的概述与实用建议。实际设计与验证请结合扬杰官方数据手册和电路测试结果,以确保器件在目标应用中的稳定与可靠。若需更详细的参数曲线(如 I-V 特性、温度系数、降额曲线等),建议参考厂商完整数据表或联系扬杰技术支持。

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