WMSIC Electronic Components

MDD BZT52C20S

ModelBZT52C20S
PackageSOD-323
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 BZT52C20S
Type
MDD
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
BZT52C20S
Electronic Component
1
Package
SOD-323
Electronic Component
Zener Diode
Electronic Component
0.028g
Electronic Component
1
(Zzt)
50Ω
Electronic Component
BM0264463836
Diode
1
Current(Ir)
100nA@15V
Power Dissipation(Pd)
200mW
Electronic Component
18.8V~21.2V
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.

BZT52C20S稳压二极管产品概述

一、产品基本身份

BZT52C20S是MDD品牌推出的一款独立式稳压二极管,属于BZT52系列的20V标称稳压值型号。作为通用型稳压元件,它核心作用是为电路提供稳定的直流电压,解决电源波动对后级电路的干扰,具备小型化、低功耗的特点,适配多种紧凑电子设计场景。

二、核心参数及实际意义

该型号的关键参数直接决定了适用范围,以下是直观解读:

  1. 稳压值范围:标称20V,实际工作区间18.8V21.2V
    虽不是高精度稳压(无±1%以内的严格精度),但18.821.2V的范围覆盖了多数常规电路的稳压需求,比如简单电压基准、辅助稳压等场景,无需额外校准即可稳定工作。

  2. 反向漏电流:100nA@15V
    反向电压15V时,漏电流仅0.1微安(100纳安),属于极低水平。这意味着反向偏置时几乎不消耗额外电能,非常适合电池供电的低功耗设备(如便携终端、物联网节点)。

  3. 最大耗散功率:200mW
    限制了最大工作电流(计算得:I=P/V≈200mW/20V=10mA),说明适合小电流稳压场景,大电流负载需配合功率管扩展,避免器件过热损坏。

  4. 动态阻抗:50Ω
    反映稳压能力的核心指标——阻抗越小,负载电流变化时电压波动越小。50Ω的阻抗意味着:若负载电流变化1mA,稳压电压仅偏移约50mV,能有效抑制负载波动带来的电压偏移。

  5. 封装类型:SOD-323
    超小型表面贴装封装,尺寸约1.6mm×0.8mm×0.6mm(仅为常规0805封装的一半),无引脚设计支持自动贴装,可大幅节省PCB空间,适配高密度电路。

三、封装与可靠性

SOD-323封装是该型号的核心优势之一:

  • 物理尺寸:体积紧凑,适合手机、智能手环、蓝牙耳机等便携设备的小型模块;
  • 焊接兼容性:支持回流焊、波峰焊等常规SMT工艺,生产效率高;
  • 温度范围:常规工业级(-55℃~150℃),满足多数民用及工业场景的温度需求,长期工作稳定性可靠。

四、主要性能特点

  1. 稳压适配常规需求:18.8~21.2V范围覆盖多数中低压电路,无需校准即可使用;
  2. 低功耗设计:100nA反向漏电流让待机状态几乎不耗电,延长电池设备续航;
  3. 小型化优势:SOD-323封装不占用宝贵PCB空间,适配紧凑设计;
  4. 高性价比:性能均衡,成本可控,适合批量应用。

五、典型应用场景

结合参数特性,常见应用包括:

  1. 便携电子设备:手机、智能手表的电源辅助稳压,稳定传感器、蓝牙模块供电;
  2. 低功耗物联网节点:温湿度传感器、智能门锁的电源稳压,低漏电流不影响电池寿命;
  3. 小型电子模块:LED驱动电路辅助稳压、MCU参考电压(简单5V/3.3V扩展);
  4. 工业控制小模块:PLC辅助电源稳压、小型继电器驱动电路电压稳定;
  5. 消费电子配件:充电器辅助稳压、耳机放大器电源稳定。

六、使用注意事项

  1. 工作电流需控制在10mA以内(200mW耗散功率限制),大电流场景需并联多个或配合功率管;
  2. 稳压管需反向接入(阴极接正、阳极接负),正向接入会导致短路;
  3. 避免超过最大反向电压(通常为稳压值1.2~1.5倍,需参考datasheet具体值),防止器件损坏。

该型号以均衡的性能、小型化封装和低功耗,成为通用稳压场景的实用选择,尤其适合紧凑电子设计和电池供电设备。

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