WMSIC Electronic Components

JUXING MUR2040DS

ModelMUR2040DS
PackageTO-252
BrandJUXING
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
JUXING MUR2040DS
Type
JUXING
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JUXING
Electronic Component
MUR2040DS
Electronic Component
1
Package
TO-252
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.362g
Electronic Component
1
Electronic Component
BM0265601779
Current
20A
Diode
1
Current(Ir)
1uA
(Vf)
1.4V@20A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
3000

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

MUR2040DS 超快恢复整流二极管产品概述

MUR2040DS是钜兴(JUXING) 推出的中功率超快恢复整流二极管,采用TO-252表面贴装封装,专为高频开关电路、功率转换系统设计,兼具大电流承载、低损耗与高可靠性特点,适配工业控制、新能源等多场景需求。

一、产品基本定位与封装

MUR2040DS属于超快恢复整流管(区别于普通整流管的微秒级恢复时间),核心优势是纳秒级反向恢复速度。封装采用TO-252(DPAK),具备以下特性:

  • 尺寸紧凑(典型6.5×5.5mm),适配高密度PCB布局;
  • 带散热焊盘,可通过PCB铜箔高效导热,兼顾散热与贴装便捷性;
  • 引脚间距符合SMT自动化生产要求,降低工艺成本。

二、核心性能参数详解

参数围绕“高频、大电流、低损耗”设计,关键指标及意义如下:

1. 正向工作特性

  • 连续整流电流(IF):20A(25℃环境),长期稳定承载中等功率(2-5kW)系统的整流需求;
  • 正向压降(Vf):1.4V@20A,导通损耗低——相同电流下比部分同规格产品压降低0.1-0.2V,直接提升电源转换效率,减少发热。

2. 反向阻断特性

  • 直流反向耐压(VRRM):400V,长期可靠承受反向电压,避免过压损坏;
  • 反向漏电流(Ir):1uA@VRRM,反向截止时漏电流极小,提升电路可靠性,降低待机功耗;
  • 反向恢复时间(Trr):50ns,纳秒级恢复速度——反向切换时电流从正向峰值到反向峰值的时间仅50ns,远快于普通整流管(微秒级),大幅降低高频开关损耗。

3. 瞬态与温度特性

  • 非重复峰值浪涌电流(Ifsm):180A(8.3ms单脉冲),应对电源开机、负载突变等瞬态冲击,增强电路抗干扰能力;
  • 工作结温范围:-55℃+150℃,宽温适配工业级(-40℃+85℃)、户外场景,高低温下性能稳定。

三、关键技术优势

基于参数特性,MUR2040DS具备以下核心竞争力:

  1. 高频适配性强:50ns反向恢复时间支持10kHz以上高频开关(如高频开关电源、逆变器),减少开关损耗;
  2. 效率与散热平衡:1.4V低正向压降降低导通损耗,TO-252封装配合PCB铜箔可有效控制结温;
  3. 抗冲击能力突出:180A浪涌电流承受能力,应对瞬态过流不易损坏;
  4. 宽温可靠:-55℃~+150℃结温范围,满足恶劣环境需求;
  5. 成本效益好:TO-252封装降低贴装成本,性能匹配中等功率应用,性价比优于部分进口器件。

四、典型应用场景

MUR2040DS的参数适配以下场景:

  1. 高频开关电源:LED驱动、通信电源的整流级,高频工作时减少损耗;
  2. 逆变器系统:太阳能、电动车逆变器的DC-AC转换级,20A电流满足中等功率需求;
  3. UPS不间断电源:整流/逆变模块,宽温与浪涌能力确保应急供电可靠;
  4. 电机驱动:BLDC无刷电机、伺服电机的换向整流,高频换向时低损耗;
  5. 工业控制电源:PLC、变频器的电源模块,适应工业环境的宽温与瞬态冲击。

五、选型与使用注意事项

为确保长期可靠,需注意:

  1. 参数降额:连续电流≤16A(80%额定值),反向电压≤280V(70%额定值),高温时进一步降额;
  2. 散热设计:TO-252需配合≥10mm²散热焊盘,必要时加小型散热片,避免结温超150℃;
  3. 焊接工艺:回流焊峰值≤260℃(时间≤40s),避免热损伤;
  4. 频率匹配:若应用频率超50kHz,需确认Trr是否满足(50ns可覆盖多数高频场景)。

综上,MUR2040DS是一款兼顾性能、成本与可靠性的超快恢复整流管,适合中等功率高频功率转换系统,是工业控制、新能源领域的实用选型。

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