WMSIC Electronic Components

ON MMSZ4717T1G

ModelMMSZ4717T1G
PackageSOD-123
BrandON
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+

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Technical data

Product details

20 specifications

Core information

Product name
ON MMSZ4717T1G
Type
ON
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ON
Electronic Component
MMSZ4717T1G
Electronic Component
1
Package
SOD-123
Electronic Component
Zener Diode
Electronic Component
0.02g
Electronic Component
1
Electronic Component
BM0058432338
Diode
1
Current(Ir)
10nA
Power Dissipation(Pd)
500mW
Electronic Component
40.85V~45.15V
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.

MMSZ4717T1G稳压二极管产品概述

一、产品基本属性

MMSZ4717T1G是安森美(ON Semiconductor) 推出的独立式稳压二极管,属于表面贴装型器件,核心功能为实现稳定的直流电压输出,广泛应用于小功率电子电路的电压基准、过压保护等场景。该型号采用小型化封装设计,适配自动化贴装工艺,满足现代电子设备对体积紧凑的需求。

二、关键电气参数

MMSZ4717T1G的核心电气性能可支撑多种基础电路设计,关键参数如下:

  1. 稳压特性:标称稳压值为43V,稳压范围覆盖40.85V~45.15V(对应±5%公差),可满足一般精度要求的电压基准场景;
  2. 反向漏电流:在测试电压32.6V条件下,反向漏电流(Ir)仅为10nA,低漏电流特性有效降低电路静态功耗,提升能效;
  3. 功率耗散:最大耗散功率(Pd)为500mW,适合小功率电路应用,避免因功率过载导致器件损坏;
  4. 温度适应性:工作结温范围为**-55℃~+150℃**,可稳定工作于宽温度环境,覆盖工业级、消费电子等多领域应用场景。

三、封装与物理特性

该器件采用SOD-123封装,属于小型表面贴装封装(SMT),典型物理尺寸(参考行业标准)约为:长度2.4mm、宽度1.6mm、高度1.0mm,具有以下优势:

  • 体积紧凑,可显著节省PCB布局空间,适配便携式设备、高密度电路模块;
  • 封装材料为耐高温塑料,引脚采用镀锡处理,符合RoHS环保标准,兼容无铅焊接工艺;
  • 封装结构抗机械应力能力强,可承受贴装、焊接过程中的应力冲击,长期可靠性高。

四、典型应用场景

MMSZ4717T1G的电气特性使其适用于以下典型场景:

  1. 电压基准源:作为小功率直流电源的参考电压,为传感器、运算放大器等电路提供稳定的43V基准(或近似值);
  2. 过压保护电路:利用稳压管反向击穿特性,限制电路电压不超过稳压值范围,防止后级器件因过压损坏;
  3. 电平转换电路:配合分压电阻或其他器件,实现不同电压域之间的电平匹配(如高压电路与低压控制电路的接口);
  4. 便携式电子设备:低功耗、小体积特性适配智能手机、智能穿戴等便携设备的电源管理模块;
  5. 工业控制电路:宽温度范围特性满足工业现场(如-20℃~+85℃)的稳定工作需求。

五、可靠性与环境适应性

该器件通过严格的可靠性测试,具备以下特性:

  • 结温范围覆盖宽温度区间,可适应极端环境(如低温存储、高温工作);
  • 反向漏电流稳定,长期使用无明显漂移,保障电路性能一致性;
  • 封装符合IEC、JEDEC等行业标准,抗湿度、抗盐雾能力满足工业级要求,使用寿命长。

六、选型与替换注意事项

若需替换或选型参考,需注意以下要点:

  1. 核心参数匹配:需确保稳压值、封装、耗散功率、反向漏电流等参数与原型号一致;
  2. 极性识别:稳压管阴极通常带有色环标记,安装时需注意极性(反向击穿特性要求阴极接高压端);
  3. 焊接要求:采用无铅焊接工艺,焊接温度需控制在器件允许范围内(参考安森美 datasheet);
  4. 替换型号参考:同参数的替代型号可参考NXP的BZX84C43、TI的LM385等(需确认封装与功率匹配)。

MMSZ4717T1G凭借稳定的电气性能、小型化封装及宽温度适应性,成为小功率电子电路中电压稳压与保护的优选器件。

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