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TWGMC MMSZ5231B Zener Diode MMSZ5231B
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TWGMC MMSZ5231B
- Type
- TWGMC
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TWGMC
- Electronic Component
- MMSZ5231B
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Zener Diode
- Electronic Component
- 0.03g
- Electronic Component
- 1
- (Zzt)
- 130Ω
- Electronic Component
- BM0265826653
- Diode
- 1
- Current(Ir)
- 2uA
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 4.8V~5.4V
- 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
一、产品基本定位与核心属性
MMSZ5231B是一款独立式稳压二极管，由台湾迪嘉（TWGMC）半导体出品，属于5.1V标称稳压系列。其核心定位为小型化、低功耗稳压器件，适配消费电子、工业控制等领域的轻载稳压场景，凭借宽温适应性、低漏电流等特点，成为便携设备、传感器电路的常用选型。
二、关键电气参数详解
该器件的电气参数直接决定应用价值，核心指标及实际意义如下：
- 稳压值与公差：标称稳压值5.1V，实际工作范围4.8V~5.4V。这一公差兼顾了生产一致性与电路兼容性，满足多数基础稳压场景的精度需求；
- 反向漏电流（Ir）：仅2uA（典型值）。反向偏置时漏电流极小，既降低自身功耗，又减少对周边电路的干扰，提升整体效率；
- 最大耗散功率（Pd）：500mW。结合稳压值可推算最大工作电流约98mA（I=Pd/Vz），完全覆盖轻载电路的稳压需求；
- 动态阻抗（Zzt）：130Ω（典型值）。动态阻抗反映电流变化时的电压波动能力，该值越小稳压越稳定，MMSZ5231B的130Ω阻抗可满足多数常规场景；
- 工作结温范围：-55℃~+150℃。覆盖工业级与消费电子的常见环境温度，极端高低温下仍能保持稳定工作。
三、封装形式与物理特性
MMSZ5231B采用SOD-123表面贴装封装，尺寸约1.6mm×0.8mm×0.6mm（长×宽×高），具备三大优势：
- 空间节省：适配便携设备（如智能手环、蓝牙耳机）的高密度PCB布局；
- 生产适配：支持自动化贴装，降低批量组装成本；
- 可靠性提升：封装材料耐热性、抗腐蚀性良好，延长器件使用寿命。
四、典型应用场景
基于参数与封装特点，该器件适用于以下场景：
- 便携设备辅助稳压：智能手环、TWS耳机的低功耗电源模块，利用低Ir特性降低待机功耗；
- 传感器基准电压源：工业温度、压力传感器的辅助基准，宽温范围保证不同环境下的精度一致性；
- 简易过压保护：配合电阻、电容组成过压保护电路，输入电压异常时击穿导通，保护后级器件；
- 小型电子模块稳压：遥控器、电子玩具的电源稳压，满足轻载下的电压稳定需求。
五、可靠性与品质保障
作为TWGMC的成熟产品，MMSZ5231B具备可靠的品质保障：
- 工艺控制：严格的生产流程确保参数一致性，减少批次差异；
- 环境测试：通过宽温老化与极端环境测试，适配工业级与消费电子场景；
- 环保合规：符合RoHS标准，适配绿色电子设计需求。
六、选型与替换参考
若需替换，优先选择参数匹配的同封装器件（如其他品牌SOD-123封装5.1V稳压管）；若需调整稳压值，可选择相邻规格：
- 4.7V：MMSZ5230；
- 5.6V：MMSZ5232。
需注意替换时确认Ir、Pd、Zzt等核心参数兼容，避免影响电路性能。
综上，MMSZ5231B以小型化、低功耗、宽温稳定为核心优势，是轻载稳压场景的高性价比选型。
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