WMSIC Electronic Components

PANJIT MMSZ5237B_R1_00301

ModelMMSZ5237B_R1_00301
PackageSOD-123
BrandPANJIT
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
PANJIT MMSZ5237B_R1_00301
Type
PANJIT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
MMSZ5237B_R1_00301
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.031g
Electronic Component
1
(Zzk)
500Ω
(Zzt)
8Ω
Electronic Component
BM0264241002
Diode
1
Current(Ir)
3uA@6V
Power Dissipation(Pd)
500mW
Electronic Component
7.79V~8.61V
Electronic Component
55℃~+150℃

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

MMSZ5237B_R1_00301稳压二极管产品概述

MMSZ5237B_R1_00301是台湾强茂(PANJIT)推出的一款小功率表面贴装稳压二极管,采用SOD-123封装,专为需要稳定电压基准、过压保护的电子电路设计,具备低功耗、宽温度适应性等特点,适用于消费电子、工业控制、通信等多领域应用。

##一、产品基本定位与核心特征 该器件属于低功耗稳压二极管,核心定位为“小功率电路的电压稳定与保护元件”,区别于大功率稳压管,其设计重点在于:

  1. 低反向漏电流,减少待机功耗;
  2. 窄范围稳压精度,满足电压基准需求;
  3. 宽结温范围,适配恶劣环境;
  4. 表面贴装封装,支持高密度PCB布局。

##二、关键电性能参数解析 以下为产品核心电参数的技术意义与实际价值:

###1. 稳压值与精度

  • 标称稳压值:8.2V(常温25℃下的典型值);
  • 稳压范围:7.79V~8.61V(对应±5%精度,满足多数通用电路的电压基准需求,避免因稳压波动导致电路性能偏差)。

###2. 反向电流与功耗

  • 反向电流(Ir):3μA@6V(当反向电压为6V时,漏电流仅3微安,远低于常规稳压管的漏电流水平,显著降低电路待机功耗);
  • 最大耗散功率(Pd):500mW(该参数决定器件允许的最大功耗,实际工作电流需满足:( I \leq \frac{Pd}{Vz_{max}} \approx 58mA ),避免结温过高损坏)。

###3. 动态阻抗

  • Zzt(测试电流下阻抗):8Ω(在额定测试电流下,器件的动态阻抗低,稳压性能稳定,电压波动小);
  • Zzk(膝点阻抗):500Ω(在低电流区域的阻抗,说明器件在小电流下仍能保持基本稳压特性,适合低功耗电路)。

###4. 温度适应性

  • 工作结温范围:-55℃~+150℃(覆盖工业级与汽车级部分应用场景,可在极端温度下稳定工作,无需额外散热设计)。

##三、封装形式与物理特性 该器件采用SOD-123表面贴装封装,具备以下物理特点:

  1. 尺寸小巧:典型尺寸为2.4mm(长)×1.2mm(宽)×1.0mm(高),可大幅节省PCB空间,适配高密度电路设计;
  2. 引脚定义:带黑色色环的一端为阴极(稳压管的正极接阳极、负极接阴极时工作);
  3. 焊接兼容性:支持回流焊(最高温度260℃/10秒)、波峰焊,符合主流SMT生产工艺要求;
  4. 耐机械应力:封装结构紧凑,抗振动与冲击能力满足IEC 60068-2-6等标准。

##四、典型应用场景 基于其电性能与封装特点,该器件广泛应用于以下场景:

  1. 消费电子:手机、平板、智能穿戴的电源管理电路(如充电电路过压保护、显示模块电压基准);
  2. 工业控制:传感器信号调理电路(如温度传感器的电压基准,避免信号漂移)、PLC输入输出模块的过压防护;
  3. 通信设备:路由器、交换机的电源滤波电路(配合电容稳定电压)、射频模块的偏置电压参考;
  4. 汽车电子:车载信息娱乐系统的辅助电源(适配-40℃~+85℃的车载环境,部分场景可替代传统稳压IC)。

##五、品牌与可靠性保障 PANJIT(强茂)作为台湾老牌分立器件厂商,具备30余年生产经验,该产品的可靠性优势体现为:

  1. 一致性高:批量生产时稳压值波动控制在±5%以内,阻抗参数稳定,适合大规模量产;
  2. 环保与认证:符合RoHS、REACH等环保标准,部分批次通过AEC-Q101汽车级可靠性认证;
  3. 低失效风险:反向漏电流小、结温范围宽,长期工作无明显性能衰减,MTBF(平均无故障时间)超过10^6小时。

##六、应用设计注意事项 为确保器件稳定工作,设计时需注意:

  1. 功率限制:实际工作电流不得超过58mA(由Pd=500mW与Vz_max=8.61V计算),需串联限流电阻(如R=(Vin-Vz)/I,I取30mA左右);
  2. 温度补偿:若应用场景温度变化大,可配合热敏电阻或运放进行温度补偿,进一步提升稳压精度;
  3. 静电防护:SOD-123封装无内置静电保护,生产与焊接时需佩戴防静电手环,避免静电击穿;
  4. 焊接温度:回流焊温度不得超过260℃,焊接时间不超过10秒,防止封装变形或性能下降。

总结:MMSZ5237B_R1_00301是一款性价比高、性能稳定的小功率稳压二极管,适合对功耗、体积、温度适应性有要求的通用电子电路,是替代传统插件稳压管的理想选择。

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