WMSIC Electronic Components

VISHAY MSQ1PJHM3/H MSQ1PJHM3

ModelMSQ1PJHM3/H
BrandVISHAY
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 23+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
VISHAY MSQ1PJHM3 / H
Type
VISHAY
Minimum package
4500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
VISHAY
Electronic Component
MSQ1PJHM3/H
Electronic Component
1
Electronic Component
General Purpose Diode
Electronic Component
1g
Electronic Component
1
Electronic Component
BM0228181346
Current
1A
Diode
1
Current(Ir)
1uA
(Vf)
1.2V@1A
Electronic Component
55℃~+175℃
Electronic Component
Electronic Component
Electronic Component
4500
Voltage Rating(Vr)
600V

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

MSQ1PJHM3/H 产品概述

一、产品简介

MSQ1PJHM3/H 是 VISHAY(威世)推出的一款表面贴装型标准恢复二极管,采用 MicroSMP(DO-219AD)封装,面向要求高反向耐压和中等电流整流能力的电源与保护应用。器件以其高达 600V 的直流反向耐压、1A 的平均整流电流以及在高压条件下仍保持低反向泄漏的特性,在高压开关电源、整流与保护电路中具有良好适配性。

二、主要规格与特点

  • 安装类型:表面贴装(SMD),封装型号 MicroSMP(DO-219AD)。
  • 最大直流反向电压(Vr):600V。适合中高压场合。
  • 平均整流电流(Io):1A,适用于中小功率整流与续流。
  • 正向压降(Vf):典型 1.2V @ If = 1A。
  • 反向泄漏电流:典型 1µA @ Vr = 600V,适合对漏电有一定要求的高压电路。
  • 结温范围(Tj):-55°C ~ +175°C,宽温度范围便于高温环境使用(需按功率散热要求降额)。
  • 反向恢复时间(trr):约 650ns(标准恢复型),在一些快速开关场合需注意恢复损耗。
  • 结电容(Cj):约 4 pF @ 4V, 1 MHz,低结电容有利于减少高频耦合影响。
  • 封装可靠性:MicroSMP 小型 SMD,适合自动贴装与回流焊流程。

三、典型应用场景

  • 开关电源中的整流与续流环节(尤其是对速度要求不极端苛刻的拓扑);
  • 高压直流/交流整流与保护电路;
  • 继电器/感性负载的续流二极管(在允许较长恢复时间的情形下);
  • 测试与测量设备中需要 600V 耐压且漏电低的保护路径;
  • 其他中小功率电源模块与工业电子设备。

四、使用建议与 PCB 布局要点

  • 散热设计:尽管 Io 为 1A,但 MicroSMP 封装面积有限,高平均功耗时应通过加宽焊盘、增加底部铜面积及必要的散热过孔(thermal vias)将热量引导至内部/背面铜层,避免长期在高结温下工作。
  • 回流焊与焊接:符合常规 SMD 回流工艺,注意封装与焊盘的湿润性以保证良好焊点。
  • 布局原则:保持二极管输入/输出走线短而粗,尽量减小寄生电感,尤其在高压开关环境中能减少电压尖峰与振铃。
  • 速率限制:由于为标准恢复型(trr ≈ 650 ns),在高频、高边沿速率的开关场合会产生较高恢复损耗与电磁干扰,必要时考虑在二极管并联 RC 抑制或替换为快恢复 / 肖特基器件。
  • 温度降额:在接近上限结温时应按厂商热阻与功率-温度曲线进行电流/功率降额,以保证可靠性与寿命。

五、选型参考与替代方案

  • 若系统对反向恢复时间或开关损耗敏感,考虑使用快恢复二极管(Fast Recovery)或超快恢复器件;
  • 若需要更低正向压降以提高效率,可选用耐压匹配的肖特基二极管,但需注意肖特基在高电压下的耐压与漏电特性;
  • 若应用强调瞬态抑制,应与 TVS 器件配合以保护系统免受脉冲过压影响。

六、总结

MSQ1PJHM3/H(VISHAY)是一款面向中小功率、高耐压场景的标准恢复表面贴装二极管,600V 耐压、1A 整流能力与低漏电特性使其在高压整流与保护应用中具有竞争力。设计时需关注其较长的反向恢复时间与封装散热能力,在需要更高速或更低压降的场合,根据应用特性选择快恢复或肖特基替代器件。

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