WMSIC Electronic Components

DOWO BZT52C30S

ModelBZT52C30S
PackageSOD-323
BrandDOWO
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

19 specifications

Core information

Product name
DOWO BZT52C30S
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
BZT52C30S
Electronic Component
1
Package
SOD-323
Electronic Component
Zener Diode
Electronic Component
0.028g
Electronic Component
1
(Zzk)
300Ω
(Zzt)
80Ω
Electronic Component
BM0264215336
Diode
1
Current(Ir)
100nA@21V
Power Dissipation(Pd)
200mW
Electronic Component
28V~32V
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.

BZT52C30S — 30V 齐纳二极管(DOWO,SOD-323)

一、产品简介

BZT52C30S 为 DOWO(东沃)出品的小功率齐纳二极管,封装为 SOD-323,适用于对体积和成本敏感的表贴电路。器件在反向击穿区工作,提供稳定的约 30V 稳压值,具有低击穿阻抗、低漏电流及较高的长期稳定性,适合做参考电压源、过压钳位和小电流稳压场合。

二、主要电气参数

  • 标称稳压值 Vz:30V(范围 28V ~ 32V)
  • 反向漏电流 Ir:100nA @ 21V
  • 最大耗散功率 Pd:200mW
  • 击穿阻抗 Zzt:80Ω(典型,测试条件下)
  • 低电流区阻抗 Zzk:300Ω(典型)
  • 封装:SOD-323,单只独立式二极管

注:阻抗值为动态阻抗,数值越低表示稳压性能越好;实际数值受测试电流与温度影响,设计时请参考完整数据表。

三、性能特点

  • 低齐纳击穿阻抗,提升负载变化下的稳压能力;
  • 最大功率耗散 200mW,适合小电流稳压或钳位应用;
  • 漏电流小,降低静态损耗;
  • SOD-323 小封装,适合高密度表贴电路;
  • 结构稳定、长期可靠性高,适用于工业级监控与保护电路。

四、典型应用

  • 小电流参考电压源与基准电路;
  • 输入/输出过压钳位与浪涌保护;
  • 信号线或小功率电源的保护与限制电压;
  • 仪器测量、便携设备和通信模块等空间受限的产品。

五、热管理与设计建议

  • 最大功耗 Pd=200mW,对应理论最大稳流 Iz_max ≈ Pd / Vz ≈ 200mW / 30V ≈ 6.7mA。为保证可靠性与温升裕量,实际工作电流应远低于该值(例如 ≤1–3mA 视工况而定)。
  • 采用串联限流电阻进行稳压或钳位时,应按最坏情况(Vz 最小 28V)计算,以防止过大电流损坏器件。
  • SOD-323 为小尺寸封装,热阻相对较高,焊盘设计与电路板散热对功率能力影响较大,请参照厂方推荐的焊盘尺寸与回流工艺。

六、封装与安装注意

  • SOD-323 表贴封装,适合标准回流焊;安装时注意极性标识及焊接温度曲线;
  • 建议在设计 PCB 时预留适当焊盘及热散路径,避免长期靠近大电流器件或高温热源;
  • 建议在元件周边保留一定空间以便测量与维修。

七、可靠性与储存

  • 本器件具有较好的长期稳定性,但仍需避免长时间在高温、高湿环境中存放;
  • 在贴装与测试过程中注意防静电(ESD)保护;
  • 建议遵循厂方提供的储存与回流焊工艺规范以保证性能一致性。

八、选型提示

  • 若电路需更高功率或更低动态阻抗,应选择额定功率更高或专用低阻抗型号;
  • 设计时考虑 Vz 的公差范围(28V~32V),关键参考应用建议配合精密调整或使用差分测量以保证系统精度。

总结:BZT52C30S 以其 30V 稳压值、低阻抗与小尺寸封装,适合用于空间受限、功耗较低的稳压与保护场合。设计时重点关注功耗限流与 PCB 散热,以确保长期稳定可靠的工作。若需导入生产或取得完整电气/热参数,请联系供应商获取官方数据手册。

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