WMSIC Electronic Components

Jingdao Microelectronics US8MC

ModelUS8MC
PackageSMC
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic US8MC
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
US8MC
Electronic Component
1
Package
SMC
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.381g
Electronic Component
1
Electronic Component
BM0227664056
Current
8A
Diode
1
Current(Ir)
10uA@1kV
(Vf)
1.7V@8A
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.

US8MC — 快恢复/高效率二极管 产品概述

一、产品简介

US8MC为晶导微电子推出的独立式快恢复/高效率二极管,封装为SMC,适用于中高压、大电流整流场合。器件在8A工作电流下正向压降为1.7V,反向耐压达1kV,兼顾导通损耗与开关性能,适配工业级电源与功率变换应用。

二、主要性能参数

  • 器件类型:独立式二极管(单管)
  • 正向压降:Vf = 1.7V @ If = 8A
  • 直流反向耐压:Vr = 1000V
  • 整流电流:Io = 8A
  • 反向电流:Ir = 10μA @ Vr = 1kV
  • 反向恢复时间:Trr = 80ns
  • 工作结温:Tj = -55℃ ~ +150℃
  • 封装:SMC(便于散热与焊接)

三、核心优势

  • 低导通损耗:1.7V@8A 的正向压降在同级别快恢复二极管中表现良好,有助于降低导通热损耗。
  • 高耐压设计:1kV 额定反向耐压适合高压整流和逆变输出侧应用。
  • 快速恢复:80ns 的反向恢复时间兼顾了开关损耗与EMI控制,适用于中等开关频率的电源拓扑。
  • 低漏电:在高压下反向漏电仅10μA,可用于对漏电敏感的电路。
  • 工业级温度范围:宽温度工作区间满足严苛环境要求。

四、典型应用场景

  • 开关电源(SMPS)输出或整流桥臂
  • 功率因数校正(PFC)与高压直流整流
  • 逆变器与太阳能逆变系统高压端
  • 电机驱动与工业控制电源
  • 充电桩、焊机及各类高压整流模块

五、使用建议与注意事项

  • 散热与降额:在长期接近额定电流运行时,应采用良好散热路径(SMC焊盘、散热片或铜箔)并考虑热降额,避免结温超限。
  • 布局与滤波:反向恢复会产生电压陡升和电流尖峰,应配合合适的缓冲元件(阻容吸收、TVS)与合理布线降低EMI。
  • 温度与漏电:反向漏电随温度上升而增加,热管理不足时会影响性能与可靠性。
  • 焊接工艺:遵循SMC封装的回流焊温度曲线和PCB焊盘推荐,避免长时间高温回流导致器件性能退化。
  • 选择匹配:在高开关频率或需要更低正向压降时,可比较肖特基或超快恢复器件;在更高电压或更高频应用时评估反向恢复与开关损耗的平衡。

六、可靠性与品质保证

晶导微电子针对US8MC进行全流程质量控制与测试(高压耐压、漏电、反向恢复和温升测试等),器件适配工业环境的振动与温循环要求。建议在具体系统中进行热仿真与样机验证,以确认在目标工况下的温升、寿命与电磁兼容性满足设计要求。

总结:US8MC以1kV高耐压、8A整流能力、80ns快恢复和相对较低的正向压降,提供了在多种中高压功率转换场景下的可靠选择。根据实际应用频率、散热条件与EMI要求进行合理选型与电路配合,能发挥该器件的性能优势。

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