WMSIC Electronic Components

ST HZ5B1PF Zener diode HZ5B1PF

ModelHZ5B1PF
PackageDO-35
BrandST
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
ST HZ5B1PF
Type
DO-35
Minimum package
5000 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST
Electronic Component
HZ5B1PF
Electronic Component
1
Package
DO-35
Electronic Component
Zener Diode
Electronic Component
0.093g
Electronic Component
1
(Zzt)
100Ω
Electronic Component
BM0264844010
Diode
1
Power Dissipation(Pd)
500mW
Electronic Component
4.6V~4.8V
Electronic Component
Electronic Component
Electronic Component
5000

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

HZ5B1PF稳压二极管产品概述

HZ5B1PF是ST(先科)推出的一款小功率轴向封装稳压二极管,采用DO-35标准封装,以稳定的电压特性、低漏电流和紧凑尺寸,广泛应用于小信号电路的电压基准、过压保护等场景。以下从产品基本信息、核心参数、封装特性、应用场景及使用注意事项展开详细说明。

一、产品基本信息

  • 品牌型号:ST(先科)HZ5B1PF
  • 器件类型:齐纳稳压二极管
  • 封装形式:DO-35(轴向引线玻璃封装)
  • 核心定位:500mW级小功率、4.7V标称稳压器件,适配低电流场景的电压稳定需求

二、核心电参数深度解析

稳压二极管的性能由电参数直接决定,HZ5B1PF的关键参数及实际意义如下:

1. 稳压值范围(4.6V~4.8V)

该器件的齐纳击穿电压覆盖4.6V至4.8V区间,标称值接近4.7V,属于常见“5V级”稳压管范畴。窄范围稳压值(波动仅0.2V)表明器件一致性优异,无需额外校准即可满足多数小信号电路的基准需求。

2. 反向漏电流([email protected])

反向漏电流是稳压管工作在反向截止区(电压远低于稳压值)时的漏电流。HZ5B1PF在1.5V反向电压下仅5uA,远低于同类器件典型值(通常10uA以上),说明反向截止特性优异,待机功耗极低,适合电池供电的便携设备等对静态功耗敏感的场景。

3. 最大耗散功率(Pd=500mW)

DO-35封装的典型功率等级为500mW,即25℃环境下器件可承受的最大功耗。实际使用需注意功率降额:环境温度每升高10℃,最大允许功耗需降低约10%(如100℃时Pd降至300mW左右),避免过热失效。

4. 动态阻抗(Zzt=100Ω)

动态阻抗反映稳压管击穿区“电压变化量/电流变化量”的比值(Zzt=ΔVz/ΔIz)。HZ5B1PF的100Ω动态阻抗在小功率稳压管中属于中等偏优水平——负载电流或输入电压波动时,输出稳压值波动小,可有效稳定小信号电路工作电压。

三、封装特性与物理参数

DO-35封装是轴向引线稳压管的标准封装,具有以下特点:

  • 尺寸紧凑:典型尺寸φ2.5mm(直径)×4mm(长度),轴向引线长约25mm(可裁剪),适配高密度PCB布局;
  • 封装材料:玻璃封装,耐腐蚀性强、机械强度高,可承受轻微冲击;
  • 温度范围:符合商业/工业级标准(-55℃~+150℃,参考ST官方 datasheet),适应多数应用环境;
  • 安装方式:通孔插件式,支持手工焊接或波峰焊,引线焊接兼容性好。

四、典型应用场景

结合参数特性,HZ5B1PF的典型应用包括:

  1. 小信号电压基准:为MCU、运放、ADC/DAC等提供稳定4.7V参考电压,确保信号采集/处理精度;
  2. 过压保护辅助:与电阻串联组成简单过压保护电路,输入电压超4.8V时击穿导通,钳位电压保护后级器件;
  3. 电源滤波辅助:与电容配合,稳定小电流直流电源输出波动(如5V电源二次稳压);
  4. 传感器信号调理:在温度/压力传感器调理电路中作基准电压源,保证输出信号一致性。

五、选型与使用注意事项

为确保可靠性,使用时需注意:

  1. 功率降额:实际功耗≤350mW(Pd的70%),避免长期过载;
  2. 负载电流限制:最大允许负载电流≈106mA(500mW/4.7V),实际建议≤80mA(留20%余量);
  3. 焊接规范:焊接温度≤260℃,单个焊点时间≤3秒,避免引线受力;
  4. 极性确认:稳压管需反向击穿工作,安装时确认极性(通常长引线为阴极);
  5. 存储条件:常温干燥环境(湿度≤60%),避免潮湿、静电,存储温度-40℃~+85℃。

总结:HZ5B1PF是性价比优异的小功率稳压管,凭借稳定的4.7V级稳压、低漏电流和紧凑封装,可满足多数低电流小信号电路的电压稳定需求,是电子设计中的常用基础器件。

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