WMSIC Electronic Components

FUXINSEMI MMSZ5231B

ModelMMSZ5231B
PackageSOD-123
BrandFUXINSEMI
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
FUXINSEMI MMSZ5231B
Type
FUXINSEMI
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
MMSZ5231B
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.032g
Electronic Component
1
(Zzt)
17Ω
Electronic Component
BM0265156916
Diode
1
Current(Ir)
5uA
Power Dissipation(Pd)
500mW
Electronic Component
4.85V~5.36V
Electronic Component
55℃~+150℃
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.

MMSZ5231B稳压二极管产品概述

MMSZ5231B是富芯森美(FUXINSEMI) 推出的独立式稳压二极管,针对小型化、低功耗的电压稳定需求设计,广泛适用于消费电子、工业控制等场景。以下从核心参数、封装特性、应用场景等维度展开详细说明。

一、产品基本定位与品牌背景

MMSZ5231B属于FUXINSEMI稳压二极管系列中的5.1V标称电压型号,采用独立式封装设计,无需额外并联/串联元件即可实现稳定电压输出。富芯森美作为国内专注于半导体分立器件的厂商,其产品以高可靠性、低成本优势覆盖中低端电子设备的稳压需求,MMSZ5231B是其成熟的小型化稳压器件之一。

二、核心电气参数详解

该器件的关键电气参数直接决定了应用范围,具体如下:

  • 稳压值:标称5.1V,实际工作范围为4.85V~5.36V,满足大多数5V级电路的稳压精度要求;
  • 反向漏电流(Ir):反向偏置电压2V时,漏电流仅为5uA,静态功耗极低,可有效降低电路待机损耗;
  • 最大耗散功率(Pd):500mW,是器件允许的最大功耗,需结合工作电流控制在额定范围内(最大工作电流≈500mW/5.1V≈98mA,实际使用需留20%~30%余量);
  • 动态阻抗(Zzt):17Ω,反映稳压管在工作电流变化时的电压波动能力,数值越小稳压特性越稳定,17Ω属于常规稳压管的合理水平;
  • 工作结温范围:-55℃+150℃,覆盖工业级(-40℃+85℃)及部分车载级(-40℃~+125℃)温度需求,适应极端环境。

三、封装与物理特性

MMSZ5231B采用SOD-123表面贴装封装,具有以下特点:

  • 尺寸小型化:封装尺寸约2.4mm×1.6mm×1.0mm(典型值),适合高密度PCB布局,满足便携设备的空间限制;
  • 引脚设计:2引脚独立式封装,焊接简单,与常规SMT设备兼容;
  • 环保特性:符合RoHS无铅环保标准,不含铅、镉等有害物质,适配绿色电子产品设计。

四、典型应用场景

基于5.1V稳压、低功耗、宽温特性,MMSZ5231B主要应用于:

  1. 消费电子:手机、平板、智能穿戴的电源滤波电路,为MCU、传感器提供稳定5V参考电压;
  2. 工业控制:PLC模块、传感器节点的辅助稳压电路,适应工业现场宽温环境;
  3. 通信设备:路由器、交换机的射频偏置电路,低漏电流降低射频模块噪声干扰;
  4. 车载电子:车载显示屏、辅助传感器的电压稳定电路,满足车载温度波动需求。

五、可靠性与应用注意事项

5.1 可靠性优势

  • 宽结温范围:-55℃~+150℃,长期工作不影响性能;
  • 低漏电流:5uA@2V,减少静态功耗,提升电路效率;
  • 封装可靠性:SOD-123封装焊接强度高,抗机械振动能力强,适合批量生产。

5.2 应用注意事项

  • 功耗控制:实际工作电流需低于98mA,避免过功耗损坏;
  • 精度补偿:若需±1%高精度稳压,需结合运算放大器补偿;
  • 焊接要求:采用常规SMT回流焊,峰值温度260℃±5℃,时间≤10s。

六、选型与替换参考

替换需匹配核心参数:稳压值5.1V(范围4.85V5.36V)、封装SOD-123、Pd≥500mW、结温≥-55℃+150℃。常见替换型号包括同系列MMSZ5231(需确认稳压范围)或其他厂商对应参数器件。

MMSZ5231B以小型化、低功耗、宽温特性,成为5V级稳压场景的高性价比选择,适用于成本和空间敏感的电子设备设计。

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