WMSIC Electronic Components

Jingdao Microelectronics US2MW

ModelUS2MW
PackageSOD-123FL
BrandElectronic
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic US2MW
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
US2MW
Electronic Component
1
Package
SOD-123FL
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.03g
Electronic Component
1
Electronic Component
BM0264894026
Current
2A
Diode
1
Current(Ir)
5uA@1kV
(Vf)
1.68V@2A
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.

US2MW 产品概述 — 晶导微电子

一、产品概述

US2MW 是晶导微电子推出的一款独立式快恢复/高效率整流二极管,面向中高压开关电源与功率整流场景。该器件在2A整流电流条件下具有较低的正向压降(Vf = 1.68V@2A),同时具备1kV的直流反向耐压和较小的反向电流(Ir = 5µA@1kV),并且具有 75ns 的反向恢复时间(Trr),能兼顾高压耐受能力与开关损耗控制,适用于要求体积小、效率高的功率应用。封装为 SOD-123FL,适合表面贴装的紧凑设计与自动化生产。

二、主要规格参数

  • 型号:US2MW
  • 品牌:晶导微电子
  • 包装形式:独立式(单只)
  • 封装:SOD-123FL(低外形表贴封装)
  • 工作结温范围:-55℃ ~ +150℃(Tj)
  • 整流电流(Io):2A
  • 正向压降(Vf):1.68V @ 2A
  • 直流反向耐压(Vr):1000V
  • 反向电流(Ir):5µA @ 1000V
  • 非重复峰值浪涌电流(Ifsm):50A
  • 反向恢复时间(Trr):75ns
  • 类型:快恢复二极管 / 高效率整流

三、产品特性与优势

  • 高耐压:1000V 的反向耐压使其适合高压开关电源、PFC、逆变器等场景,能够承受较高工作电压和脉冲电压应力。
  • 低正向压降:在2A工作电流下 Vf = 1.68V,可降低整流损耗,提高总体系统效率,特别适合中低功率整流链路。
  • 快恢复特性:Trr = 75ns 在提高开关频率或降低开关转换损耗时尤为重要,可减少反向恢复引起的额外损耗与电磁干扰(EMI)。
  • 良好浪涌承载能力:Ifsm = 50A 的峰值浪涌能力有助于承受通电瞬变和负载突变时的脉冲应力。
  • 低漏电流:在高压下仍能保持较小的反向电流(5µA),有助于减少空载或待机状态下的损耗与发热。
  • 小型化封装:SOD-123FL 在保证热、电性能的同时适用于空间受限的设计以及自动化贴装生产。

四、典型应用场景

  • 开关电源(SMPS)中的高压整流与续流二极管
  • 功率因数校正(PFC)整流段
  • 逆变器、离线适配器与电源模块
  • 充电器、LED 驱动电源的整流与防回流保护
  • 工业电源、家电控制电路以及电机驱动辅助回路

五、封装与热管理建议

  • 封装为 SOD-123FL:适合回流焊工艺,便于自动化装配,具有低外形高度。
  • 热设计要点:尽管器件额定整流电流为2A,但实际使用中需根据PCB散热、周围铜箔面积与环境温度进行降额设计。建议在功率较大或长期满载场合增大焊盘铜箔面积、使用热沉或通孔(thermal vias)改善散热。
  • 布局原则:尽量缩短高电流回流路径,减小寄生电感;将器件放置在热量可快速扩散的位置,并与接地铜箔良好热连接。

六、使用与可靠性注意事项

  • 温度降额:在高温环境下应进行电流降额并验证结温(Tj)不超过工作范围上限(150℃)。
  • 回流焊工艺:遵循制造商或行业标准的回流焊曲线和焊接材料要求,避免长时间高温暴露影响可靠性。
  • 并联/串联注意:若需并联以提高电流能力,需考虑电流均流措施;串联用于提高耐压时应注意电压均衡电路(如分压电阻或电阻/电容网络)。
  • 防护与抑制:在有较大反向恢复或高 dv/dt 场合,配合 RC 抑制网络或合理的吸收器件可降低电压尖峰及电磁干扰。

七、选型建议与对比提示

  • 若主要目标是尽量降低正向压降以进一步提升效率,可同时评估 Schottky 二极管,但 Schottky 在高压(1kV)领域受限;US2MW 在高压快恢复应用中具备成本与性能的平衡。
  • 在更高频率或需要更短恢复时间的设计中,可比较更高速恢复器件或专用软恢复二极管,以减少开关损耗与电压应力。

八、结语与采购信息

US2MW(晶导微电子)以其高耐压、快恢复和小型封装的组合,适合中高压功率整流、PFC、逆变及工业电源等多种应用。若需样品验证或批量采购,建议联系晶导微电子或授权分销商获取最新的数据手册、封装尺寸图以及可靠性测试报告,以便在目标应用中进行可靠性评估与热设计确认。

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