WMSIC Electronic Components

Hottech BZT52C4V7S

ModelBZT52C4V7S
PackageSOD-323
BrandHottech
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Hottech BZT52C4V7S
Type
HOTTECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HOTTECH
Electronic Component
BZT52C4V7S
Electronic Component
1
Package
SOD-323
Electronic Component
Zener Diode
Electronic Component
0.03g
Electronic Component
1
(Zzk)
500Ω
(Zzt)
80Ω
Electronic Component
BM0264463977
Diode
1
Current(Ir)
3uA
Power Dissipation(Pd)
200mW
Electronic Component
4.4V~5V
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.

BZT52C4V7S稳压二极管产品概述

一、产品核心身份与定位

BZT52C4V7S是Hottech(合科泰) 推出的表面贴装稳压二极管,属于小功率稳压器件范畴。该产品以4.7V标称稳压值为核心设计,搭配超小型SOD-323封装,主要面向对空间体积、功耗控制要求严格的电子设备,可满足稳压供电、过压防护等基础电路需求,覆盖消费电子、工业控制、便携设备等多领域应用。

二、关键电气性能参数

产品的核心电气参数决定了其适用场景,具体如下(均为常温25℃下的典型/极限值):

参数项 数值 说明 标称稳压值(Vz) 4.7V 设计标准稳压输出值,是电路稳压功能的核心参考值 稳压值范围(Vz范围) 4.4V~5.0V 生产工艺偏差导致的允许波动范围,满足常规电路对稳压精度的基础需求 反向漏电流(Ir) 3μA 稳压管反向未击穿时的漏电流,数值小说明反向漏电控制良好,功耗更低 最大耗散功率(Pd) 200mW 器件允许的最大功耗,工作时需避免实际功耗超过该值(防止过热损坏) 动态阻抗(Zzt) 80Ω 测试电流下的动态阻抗,阻抗小说明稳压性能稳定,输出电压波动小 动态阻抗(Zzk) 500Ω 另一测试条件下的动态阻抗,辅助反映不同工作状态下的稳压特性

三、封装与物理特性

BZT52C4V7S采用SOD-323封装,属于行业内极小的表面贴装封装之一,物理特性如下:

  • 封装尺寸:约1.6mm×0.8mm×0.6mm(长×宽×高),无引脚设计,占用PCB面积仅1.28mm²,是传统插件稳压管的1/10以下;
  • 焊接兼容性:支持回流焊、波峰焊(需适配夹具)工艺,适合自动化贴装生产;
  • 温度范围:常规商业级(-55℃~125℃),满足大部分电子设备的工作温度需求。

该封装的核心优势是极致小型化,可直接集成到智能手机、智能手环、蓝牙耳机等便携设备的主板中,不影响设备轻薄化设计。

四、典型应用场景

结合参数特性,BZT52C4V7S主要应用于以下场景:

4.1 低压直流电源稳压

为MCU(微控制器)、传感器、蓝牙模块等低功耗器件提供稳定的4.7V工作电压,避免电源波动(如电池放电后期电压下降、电磁干扰)对器件性能的影响,提升电路可靠性。

4.2 信号/电源过压保护

串联在信号线路或电源线路中,当电压超过稳压值(4.7V)时,稳压管反向击穿导通,将线路电压钳位在4.7V左右,防止后端敏感器件因过压损坏(如ESD静电放电、电源浪涌)。

4.3 简易基准电压源

作为低成本基准电压,配合运算放大器可构成简单的电压参考电路,用于温度补偿、电压监测等基础功能(虽精度不如专用基准,但满足一般需求)。

4.4 便携设备辅助稳压

适配蓝牙耳机、智能手表、无线耳机等便携设备的小型电源模块,解决电池输出电压不稳定的问题,延长设备续航(低漏电流降低静态功耗)。

五、品牌与可靠性保障

Hottech(合科泰)是国内专注于半导体分立器件的制造商,拥有成熟的硅平面工艺生产线。BZT52C4V7S的可靠性保障包括:

  • 工艺控制:采用严格的光刻、扩散工艺,确保稳压值一致性;
  • 测试验证:出厂前经过全参数测试(稳压值、漏电流、阻抗等),以及温度循环、湿度老化等可靠性试验;
  • 环保合规:符合RoHS 2.0标准,无铅无卤,满足出口及环保要求。

六、选型与使用注意事项

为确保产品稳定工作,需注意以下要点:

  1. 耗散功率限制:实际工作时,Pd=(V工作电压 - Vz)×I工作电流,需保证Pd≤200mW,避免过热;
  2. 反向漏电流:常温下Ir=3μA,高温(如100℃)时漏电流会略有上升,需在高温场景下预留适当裕量;
  3. 焊接工艺:回流焊温度需控制在260℃以下(峰值温度),焊接时间≤10秒,避免损坏封装;
  4. 稳压值匹配:若电路需要更精确的4.7V,可筛选稳压值接近4.7V的器件(产品提供4.4~5.0V范围)。

该产品凭借小型化、低功耗、高可靠性的特点,成为便携电子、小型模块等场景的理想稳压选择。

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