WMSIC Electronic Components

PANJIT MMSZ5256B_R1_00301

ModelMMSZ5256B_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 MMSZ5256B_R1_00301
Type
PANJIT
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
MMSZ5256B_R1_00301
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.031g
Electronic Component
1
(Zzk)
600Ω
(Zzt)
49Ω
Electronic Component
BM0264544588
Diode
1
Current(Ir)
100nA@23V
Power Dissipation(Pd)
500mW
Electronic Component
28.5V~31.5V
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.

MMSZ5256B_R1_00301 产品概述

一、概述

MMSZ5256B_R1_00301 为 PANJIT(强茂)出品的一颗独立式稳压二极管,标称稳压值为 30V,采用平面芯片结构并封装于 SOD-123 表面贴装封装。器件针对自动化组装工艺优化,适用于中低功率电压参考、浪涌限压与过压保护等场合。

二、主要参数

  • 稳压值(标称):30V
  • 稳压值范围:28.5V ~ 31.5V
  • 反向电流 Ir:100nA @ 23V
  • 耗散功率 Pd:500mW
  • 稳态阻抗 Zzt:49Ω
  • 膝部阻抗 Zzk:600Ω
  • 工作结温范围:-55℃ ~ +150℃
  • 二极管数量:1(独立式)

三、结构与封装

器件采用平面芯片结构,封装为 SOD-123 小型表贴封装,体积小、重量轻,适合集成于空间受限的电路板上。SOD-123 支持高速贴片与回流焊流程,利于大批量自动化生产与组装。

四、热与电性能

500mW 的耗散功率要求在实际电路中注意热管理与功率降额。在常温环境下可直接作为 30V 级别的稳压或保护元件,但在高结温条件下漏电流与稳压特性会发生变化,需根据实际 PCB 散热条件或增加铜箔面积进行降额。稳态阻抗 Zzt(49Ω)与膝部阻抗 Zzk(600Ω)表明该器件在低电流区间的调节能力有限,更适合用于参考或保护,而非高精度基准源。

五、可靠性与合规性

该产品符合欧盟 RoHS 2.0 的无铅要求,采用符合 IEC 61249 标准的绿色模塑料材料,满足环保与可追溯性要求。平面芯片结构与 SOD-123 封装在焊接可靠性与温度循环测试方面具有良好表现,适合一般工业与商用电子设备。

六、典型应用与设计注意事项

  • 典型应用:电压参考、过压保护、箝位电路与电源旁路电压稳压。
  • 设计注意:考虑到 Zzt 与 Zzk 值,若需要更低噪声与高精度稳压,应选用低阻抗或有温度补偿的参考源。
  • 热管理:在 PCB 设计时为 SOD-123 引脚及其周围安排充足的铜箔面积或热过孔,以降低结温并保证长期可靠性。
  • 漏电控制:高环境温度下反向电流会上升,敏感电路应予以考虑或在电路中增加旁路/限流元件。

七、选型建议与使用提示

如需在中等精度下实现 30V 级别的稳压或作为保护二极管,MMSZ5256B_R1_00301 提供了小体积、易组装与环保合规的方案。若应用对电压稳定度、温漂或低频噪声有更高要求,建议在器件选型时参考更高档次的精密基准或配合运算放大器组成更复杂的稳压方案。安装时遵循厂商的回流焊曲线与静电防护规范,以确保器件性能与寿命。

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