WMSIC Electronic Components

MSKSEMI 1N4004

Model1N4004
PackageDO-214AC(SMA)
BrandMSKSEMI
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
MSKSEMI 1N4004
Type
MSKSEMI
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
1N4004
Electronic Component
1
Package
DO-214AC(SMA)
Electronic Component
General Purpose Diode
Electronic Component
0.099g
Electronic Component
1
Electronic Component
BM0225765441
Current
1A
Diode
1
(Vf)
1.1V@1A
Electronic Component
65℃~+150℃
Electronic Component
Electronic Component
Electronic Component
2000
Voltage Rating(Vr)
400V

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

1N4004 产品概述

一、产品简介

1N4004 是一款通用整流二极管的型号,MSKSEMI(美森科)提供的该器件为独立式单个二极管封装,适用于一般功率整流和保护电路。其关键特点是耐压高、整流电流适中,适合各种交流到直流转换、反向保护与续流应用。

二、主要电气参数

  • 直流反向耐压 Vr:400V(最大反向电压,可耐受峰值反向电压)
  • 平均整流电流(Io):1A(连续工作条件下推荐最大整流电流)
  • 正向压降 Vf:1.1V @ 1A(在1A电流时的典型正向压降,影响功耗)
  • 非重复峰值浪涌电流 Ifsm:30A(一次性或短时冲击浪涌能力,用于吸收启动或故障瞬态) 这些参数决定了器件在功率损耗、热管理和瞬态承受能力方面的使用边界。

三、封装与机械特性

该型号由 DO-214AC(SMA)封装提供,为表面贴装形式,适合自动贴片与回流焊工艺。SMA 封装体积小、焊盘紧凑,有利于紧凑型电源板设计与批量生产。机械强度适中,但在安装与波峰/回流焊工艺中仍需注意热应力管理。

四、典型应用场景

  • 开关电源与线性电源的整流与滤波
  • 适配器、充电器中的高压侧整流
  • 电机驱动、电源保护中的反向电压保护与续流二极管
  • 各类家电与工业电子设备中的通用整流或钳位用途 由于其1A级别的连续电流与30A瞬态能力,适合中小功率场合。

五、使用与选型建议

  • 连续工作时应把工作电流控制在1A或以下;考虑正向压降1.1V带来的功耗(P≈Vf×I),例如1A时约1.1W,需通过PCB铜箔散热或降低工作电流来控制结温。
  • 对于频繁的大幅浪涌或高温环境,建议选择额定更高或散热更好的封装/器件。
  • 若电路中存在高频整流,注意二极管恢复时间对开关损耗的影响,必要时考虑肖特基或快速恢复二极管替代。
  • SMA 封装适用于表面贴装生产,设计时预留合适的焊盘和热沉铜面积。

六、注意事项与可靠性

非重复峰值浪涌 Ifsm 为一次性冲击能力,不代表可长期重复承受的电流;频繁冲击会降低可靠性。封装及焊接过程请遵循供应商的回流曲线规范以避免热损伤。储存与使用时避免静电损伤(ESD)和反向高压瞬态超限,必要时并联适当抑制元件以保护二极管寿命。

综上,MSKSEMI 的 1N4004(DO-214AC/SMA)是一款面向通用整流与保护的可靠选择,适合中等电压(最高400V)与中小功率场景,在满足热设计与浪涌管理的前提下,可实现稳定长期工作。

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