WMSIC Electronic Components

PANJIT MMSZ5255A_R1_00001

ModelMMSZ5255A_R1_00001
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANJIT MMSZ5255A_R1_00001
Type
PANJIT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
MMSZ5255A_R1_00001
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.03g
Electronic Component
1
(Zzk)
600Ω
(Zzt)
44Ω
Electronic Component
BM0263665332
Diode
1
Current(Ir)
100nA@21V
Power Dissipation(Pd)
500mW
Electronic Component
27.44V~28.56V
Electronic Component
50℃~+150℃

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

MMSZ5255A_R1_00001稳压二极管产品概述

一、核心身份与品牌背景

MMSZ5255A_R1_00001是强茂电子(PANJIT) 推出的一款独立式稳压二极管,属于其经典稳压管系列产品。强茂作为全球知名的半导体器件制造商,在分立器件领域拥有成熟的研发与生产体系,该型号产品凭借稳定的性能、紧凑的封装及适中的成本,广泛应用于各类电子电路的稳压与保护场景。

二、关键电气性能参数解析

该稳压管的核心电气参数直接决定了其适用场景,具体性能如下:

  1. 稳压值与精度:标称稳压值为28V,实际工作范围覆盖27.44V~28.56V,对应±2%的精度偏差,满足多数中低端稳压需求(无需高精度基准时可替代更高精度器件,降低成本)。
  2. 反向漏电流:在21V反向偏置(低于稳压值)下,反向漏电流仅100nA,漏电流极低意味着在非稳压状态下功耗可忽略,不会影响电路正常工作。
  3. 最大耗散功率:额定耗散功率为500mW,结合稳压值计算,最大允许工作电流约为17.86mA(Pd/Vz=500mW/28V),设计电路时需避免电流超出此范围。
  4. 动态阻抗:测试电流下的动态阻抗(Zzt)为44Ω,最大电流下的阻抗(Zzk)为600Ω——低Zzt保证了负载变化时稳压电压波动小,适合对电压稳定性有一定要求的场景;Zzk的变化范围也提示其工作电流不宜过大。
  5. 工作结温范围:支持**-50℃~+150℃** 的宽温度区间,可适应工业控制、车载电子等极端环境(如低温户外设备、高温车载模块)。

三、封装与物理特性

该产品采用SOD-123 小型表面贴装封装,具有以下优势:

  • 尺寸紧凑:封装体积小(典型尺寸约2.9mm×1.6mm),适合高密度PCB设计(如手机、路由器等小型电子设备);
  • 安装便捷:SMD封装兼容自动化贴装工艺,适合批量生产,降低人工成本;
  • 散热适配:封装的散热性能可满足500mW的功耗需求,无需额外散热设计(需注意PCB焊盘的散热面积匹配)。

四、典型应用场景

结合参数特性,MMSZ5255A_R1_00001可广泛应用于以下场景:

  1. 低压直流电源稳压:如5V/12V电源的辅助稳压(配合线性稳压器降低纹波),或小功率电池供电设备的输出稳压;
  2. 基准电压源:作为简单的电压基准(如运放的偏置电压、比较器的参考电压),漏电流小保证基准稳定;
  3. 过压保护电路:串联电阻后可构成过压保护,当电压超过28V时导通,钳位电压保护后级敏感元件(如MCU、传感器);
  4. 工业与车载电子:宽温范围适配工业控制器、车载中控模块等环境(-40℃~85℃是车载常见温区,该产品覆盖更宽);
  5. 消费电子:机顶盒、智能音箱、路由器等小功率设备的稳压电路,成本低且性能可靠。

五、选型与使用注意事项

为确保产品性能稳定,使用时需注意以下几点:

  1. 稳压值匹配:需确认电路所需稳压值与28V一致,避免偏差过大影响功能;
  2. 电流限制:工作电流需控制在17.86mA以内,可通过串联限流电阻实现(如电源电压30V时,限流电阻R=(30V-28V)/17.86mA≈112Ω);
  3. 封装适配:PCB焊盘需匹配SOD-123封装尺寸,避免虚焊或短路;
  4. 环境温度:工作环境温度需在-50℃~+150℃范围内,超出可能导致稳压值漂移或器件损坏。

总结

MMSZ5255A_R1_00001作为强茂推出的独立式稳压二极管,凭借28V稳压值、±2%精度、低漏电流、宽温范围 及SOD-123紧凑封装,成为中低端稳压/保护场景的高性价比选型。其成熟的工艺与稳定的性能,可满足多数电子设备的实用需求,是工程师选型时的可靠选择之一。

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