WMSIC Electronic Components

ST HZ12A2PF Zener diode HZ12A2PF

ModelHZ12A2PF
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 HZ12A2PF
Type
ST
Minimum package
5000 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST
Electronic Component
HZ12A2PF
Electronic Component
1
Package
DO-35
Electronic Component
Zener Diode
Electronic Component
0.085g
Electronic Component
1
(Zzt)
35Ω
Electronic Component
BM0264240463
Diode
1
Power Dissipation(Pd)
500mW
Electronic Component
11.9V~12.4V
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.

HZ12A2PF稳压二极管产品概述

HZ12A2PF是ST(先科)推出的一款小功率轴向引线稳压二极管,采用DO-35封装,以稳定的12V级输出为核心特性,广泛适用于对电压精度要求适中、功率需求较低的电子电路场景,兼具低漏电流、小体积与可靠稳定性。

一、产品核心定位

作为一款经济型稳压器件,HZ12A2PF针对12V电压系统设计,稳压值覆盖11.9V~12.4V的实用范围,平衡了稳压精度与功耗控制,可满足消费电子、工业控制、仪器仪表等领域的轻载稳压、基准电压或过压保护需求,是替代传统12V稳压管的高性价比选择。

二、关键电气性能参数

HZ12A2PF的电气参数经过优化,核心性能如下:

  • 稳压值范围:额定区间为11.9V~12.4V,偏差控制在±2%以内,可稳定输出接近12V的基准电压,适配多数12V供电电路的需求;
  • 反向漏电流(Ir):在反向电压9.5V时仅为1uA,漏电流极低,确保电路反向截止状态下功耗可控,避免额外发热或电压波动;
  • 最大耗散功率(Pd):额定500mW(0.5W),属于小功率稳压管范畴,适用于轻载场景(如二次稳压、信号调理),重载需配合散热设计;
  • 动态阻抗(Zzt):典型值35Ω,反映负载电流变化时的电压波动能力,低阻抗意味着输出电压稳定性好,负载变动对电压的影响被有效抑制。

三、封装与物理特性

HZ12A2PF采用DO-35轴向引线封装,具有以下优势:

  • 体积小巧:封装尺寸紧凑,便于PCB板紧凑布局,适合小型化电子设备;
  • 无铅工艺:符合RoHS环保标准,不含铅、镉等有害物质,满足现代电子行业环保要求;
  • 焊接可靠:轴向引线设计便于手工或自动焊接,焊接牢固性好,长期使用不易虚焊;
  • 温度兼容性:封装材料可承受常规焊接温度(回流焊、波峰焊),生产过程兼容性强。

四、典型应用场景

结合参数特性,HZ12A2PF的典型应用包括:

  1. 12V电源二次稳压:作为开关电源/线性电源的二次稳压元件,稳定输出12V电压,弥补主电源的电压波动(输入变化、负载变动);
  2. 基准电压源:用于传感器信号调理、ADC/DAC参考电压,提供稳定12V基准,提升信号采集/转换精度;
  3. 过压保护:并联在MCU、传感器等敏感电路前端,瞬态过压(雷击、开关浪涌)时击穿导通,钳位电压至12V左右,保护后端器件;
  4. 电平稳定:在音频、逻辑电路中稳定信号电平,避免电源波动导致的信号失真或逻辑错误。

五、品牌与可靠性保障

ST(先科)作为国内知名半导体厂商,HZ12A2PF的可靠性得到保障:

  • 宽温工作:可在-55℃~+150℃范围内稳定工作,通过高低温循环、湿度、振动等可靠性测试;
  • 批量一致性:稳压值偏差控制在±2%以内,减少电路调试成本;
  • 环保合规:无铅封装符合欧盟RoHS指令,适用于出口或环保要求严格的项目。

总结而言,HZ12A2PF是一款性能均衡、性价比高的12V级稳压二极管,其小体积、低漏电流、稳定的稳压特性,使其成为轻载稳压、基准电压与过压保护场景的理想选择。

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