WMSIC Electronic Components

MDD HER108

ModelHER108
PackageDO-41
BrandMDD
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 Date code within 2 years

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Technical data

Product details

19 specifications

Core information

Product name
MDD HER108
Type
MDD
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MDD
Electronic Component
HER108
Electronic Component
1
Package
DO-41
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.25g
Electronic Component
1
Electronic Component
BM0264795299
Current
1A
Current(Ir)
5uA@1kV
(Vf)
1.7V@1A
Electronic Component
65℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000
Voltage Rating(Vr)
1kV

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

HER108高效率整流二极管产品概述

HER108是MDD品牌推出的轴向引线式高效率整流二极管,采用DO-41标准封装,针对中小功率高频整流场景优化设计,兼具高速性能与高压耐受能力,是开关电源、工业控制等领域的常用器件。

一、核心身份与基本规格

HER108的型号明确其“高效率整流器(High Efficiency Rectifier)”定位,品牌为MDD,封装形式为DO-41轴向插装结构——该封装体积小巧(直径约2.7mm,长度约5.2mm),引线便于手工/机器焊接,兼容多数PCB板插件工艺,成本可控且安装便捷,适合批量生产场景。

二、关键电气参数深度解析

HER108的参数围绕“高速、高压、低损耗”核心设计,具体表现为:

  • 正向压降:1.7V(@1A正向电流)——反映正向导通时的电压损耗,虽略高于普通硅整流管,但结合高速性能,在高频电路中综合损耗更优;
  • 直流反向耐压:1kV——可稳定承受1000V以内反向电压,满足中高压电路安全需求;
  • 持续整流电流:1A——额定正向电流适配10W-100W中小功率电源的整流需求;
  • 反向漏电流:5μA(@1kV反向电压)——高压下漏电流极低,有效减少待机损耗,提升电路效率;
  • 反向恢复时间:70ns——远快于普通整流管(如1N4007反向恢复时间达数微秒),适合kHz级高频开关应用,可降低开关损耗与电磁干扰;
  • 工作结温范围:-65℃至+150℃——宽温区间覆盖工业环境(如户外设备、汽车舱)、低温场景(如航空电子),可靠性更强。

三、典型应用场景

HER108的性能匹配多类电路需求,常见应用包括:

  1. 开关电源(SMPS)次级整流:高频电源次级需高速二极管,70ns恢复时间可减少开关损耗,提升电源效率;
  2. 高压小电流整流:如1kV以下工业控制电源、医疗设备辅助电源的整流环节;
  3. 逆变电路续流:逆变电路中作为续流管,快速关断特性避免反向电流冲击;
  4. 电池充电电路:1A额定电流适配小容量电池(铅酸、锂电池组)的充电整流;
  5. 工业控制模块:PLC、传感器电源的整流/续流,适应宽温环境。

四、性能优势总结

HER108的核心竞争力体现在:

  • 高速适配高频:70ns恢复时间解决普通整流管高频下损耗大、发热高的问题;
  • 高压与低漏电平衡:1kV耐压+5μA漏电流,中高压场景下效率与可靠性兼顾;
  • 宽温稳定工作:-65℃至+150℃结温范围,无需额外散热即可应对极端环境;
  • 封装兼容性强:DO-41封装成熟,可直接替换同封装普通整流管,降低设计改造成本。

五、可靠性与应用注意事项

HER108结温上限150℃,实际使用需注意PCB散热(如增加铜箔面积),避免结温超额定值;反向耐压1kV为直流值,脉冲电压下需降额至80%使用,保障长期可靠性。MDD作为成熟品牌,该器件一致性与稳定性已通过多数工业级应用验证。

整体来看,HER108是性价比突出的高速高压整流二极管,适用于消费电子、工业控制、汽车电子等多领域中小功率高频整流场景,能有效提升电路效率与可靠性。

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