WMSIC Electronic Components

MDD BZT52C4V3

ModelBZT52C4V3
PackageSOD-123
BrandMDD
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
MDD BZT52C4V3
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
BZT52C4V3
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.032g
Electronic Component
1
(Zzt)
130Ω
Electronic Component
BM0264866560
Diode
1
Current(Ir)
5uA@1V
Power Dissipation(Pd)
500mW
Electronic Component
4.11V~4.52V
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.

BZT52C4V3稳压二极管产品概述

BZT52C4V3是MDD品牌推出的小功率贴片稳压二极管,属于BZT52C系列的典型产品,主打低功耗、小体积和稳定的稳压特性,适用于各类便携式、低功耗电子设备的电压基准或过压保护场景。

一、产品基本识别信息

1. 型号含义解析

  • BZT52C:代表系列标识,属于通用型贴片稳压二极管系列,覆盖从2.4V到24V的多档稳压值;
  • 4V3:标称稳压值为4.3V(“V”后数字为电压值,省略小数点);
  • 品牌:MDD(国内知名分立器件品牌,产品以性价比和可靠性著称)。

2. 系列定位

该产品属于小功率稳压管,针对低成本、高密度PCB设计优化,无引线封装(常规SOD-123)适合自动化生产,广泛应用于消费电子、工业控制等领域的辅助稳压场景。

二、核心电性能参数深度解析

BZT52C4V3的关键参数设计围绕“低功耗、稳定稳压”展开,具体如下:

1. 稳压特性

  • 标称稳压值(Vz):4.3V(常温下典型值);
  • 稳压范围(Vz范围):4.11V~4.52V(生产一致性指标,满足批量应用的电压波动要求,精度约±4.65%);
  • 稳压阻抗(Zzt):130Ω(稳压状态下的等效阻抗,阻抗越小稳压精度越高,该值符合4V级稳压管的典型性能)。

2. 反向特性

  • 反向漏电流(Ir):5uA@1V(反向偏置1V时的漏电流,远低于常规稳压管的漏电流水平,显著降低静态功耗,适合电池供电设备)。

3. 功率与可靠性

  • 最大耗散功率(Pd):500mW(小功率设计,无需额外散热措施,适配低功耗电路);
  • 工作温度范围:常规为-55℃~150℃(行业标准值,满足大多数工业和消费场景的温度需求)。

三、封装与物理特性

BZT52C4V3常规采用SOD-123贴片封装(用户提及“封装未知”,但该系列主流封装为SOD-123),其物理特性优势明显:

  • 小体积:尺寸约1.6mm×0.8mm×0.6mm,占板面积小,适合高密度PCB布局;
  • 贴片式:无引线设计,支持回流焊、波峰焊等自动化贴装工艺,生产效率高;
  • 抗振动:封装结构紧凑,抗机械振动和冲击能力强,适合车载、手持设备等场景。

四、典型应用场景

结合参数特性,BZT52C4V3的核心应用场景包括:

1. 低功耗设备的电压基准

  • 给单片机(MCU)、ADC(模数转换器)提供稳定的4.3V参考电压,提升采样精度;
  • 便携式设备(如智能手环、蓝牙耳机)的电源辅助稳压,稳定电池输出电压。

2. 过压保护电路

  • 配合限流电阻使用,当电路电压超过4.3V时,稳压管反向击穿导通,限制负载端电压,保护敏感元器件(如传感器、射频模块)。

3. 电源滤波辅助

  • 与电容并联,滤除电源中的高频纹波,提升电源稳定性,适用于通信模块、小型电源的滤波设计。

4. 电池供电系统的电压调节

  • 3.7V锂电池升压后,通过BZT52C4V3稳压到4.3V,给LED、小型显示屏等负载供电。

五、选型与使用注意事项

为确保产品性能稳定,需注意以下要点:

1. 功率余量计算

实际耗散功率需低于500mW,计算示例:若稳压管工作电流为50mA,则耗散功率P=Vz×I=4.3V×50mA=215mW,远低于最大Pd,满足要求;需通过限流电阻限制工作电流(R=(Vin-Vz)/I)。

2. 精度匹配

若应用对稳压精度要求较高(如高精度ADC),需筛选4.11V~4.52V范围内的特定电压值,避免批次间差异影响性能。

3. 焊接工艺要求

SOD-123封装的焊接温度需控制在:回流焊峰值温度≤260℃(时间≤10秒),波峰焊温度≤240℃(时间≤5秒),避免热损伤导致参数漂移。

4. 温度影响评估

温度升高时,稳压值会略有上升(约0.08mV/℃),反向漏电流会增大,需在工作温度范围内(如车载场景-40℃~85℃)验证性能。

六、总结

BZT52C4V3作为一款小功率贴片稳压管,以低漏电流、小体积、高性价比为核心优势,覆盖了消费电子、工业控制等领域的基础稳压需求。其4.3V标称稳压值、500mW耗散功率和SOD-123封装,使其成为便携式设备、低功耗电路的理想选择。在选型时需根据应用场景的功率需求、精度要求和温度环境,合理设计外围电路,确保产品性能稳定可靠。

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