WMSIC Electronic Components

BORN US2M

ModelUS2M
PackageSMA
BrandBORN
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BORN US2M
Type
BORN
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
US2M
Electronic Component
1
Package
SMA
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.125g
Electronic Component
1
Electronic Component
BM0226526329
Current
2A
Diode
1
Current(Ir)
5uA
(Vf)
1.7V@1A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000

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

US2M 产品概述

一、产品简介

US2M 为伯恩半导体(BORN)出品的一款单只独立式高压快速恢复整流二极管,封装为 SMA 表面贴装型。器件额定直流反向耐压达 1kV,额定工作结温范围宽广(-55℃ 至 +150℃),在 1.0A 正向电流条件下正向压降约为 1.7V,非重复峰值浪涌电流(Ifsm)为 50A,反向电流(Ir)典型值为 5μA,反向恢复时间(Trr)约为 100ns。该器件定位于需要高耐压与较快恢复特性的电力电子应用。

二、主要特性

  • 高耐压:Vr = 1000V,适合中高压整流与耐压要求较高的电路。
  • 适中正向压降:Vf = 1.7V @ 1A,在高压整流场合维持合理的导通损耗。
  • 快速恢复:Trr ≈ 100ns,适用于中等开关频率下的桥式整流与续流应用。
  • 低泄漏:Ir ≈ 5μA,在高压条件下有利于降低反向功耗与热失控风险。
  • 良好浪涌能力:Ifsm = 50A,能够承受启动或故障时的短时冲击电流。
  • 紧凑封装:SMA 表面贴装,便于自动化贴装与高密度 PCB 布局。

三、典型应用

  • 开关电源(SMPS)高压整流回路与续流二极管。
  • 反激/正激变换器的整流与钳位回路。
  • 工业电源、测控设备、高压电源模块。
  • 中等频率的整流桥、保护电路与滤波前端。
  • 作为替换或升级旧有高压快恢复二极管的紧凑型方案。

四、设计与使用建议

  • 温度管理:虽然器件允许的结温范围较大,但在高电流或高频切换时需注意结温上升,做好 PCB 散热与铜箔加厚,必要时并联或使用外部散热措施。
  • 开关损耗:100ns 的反向恢复时间在中等频率下可接受,但在高频应用中会带来额外的恢复损耗与电磁干扰(EMI),建议配合合适的缓冲电路或 RC 抑制网络。
  • 布局要点:尽量缩短二极管与电感、开关器件之间的互连长度,降低寄生电感以减少尖峰与额外应力。
  • 浪涌能力使用:50A 的 Ifsm 为非重复峰值,请勿用于需频繁承受大冲击电流的场合。
  • 焊接与储存:遵循常规 SMD 器件回流焊工艺规范,避免长时间潮湿暴露,存储和使用前如有必要进行烘烤除湿处理。

五、选型参考与替代方案

  • 若目标电路对正向损耗敏感且耐压要求较低,可考虑 Schottky 二极管以降低 Vf,但 Schottky 在高电压(≥400V)时可选性受限。
  • 若应用对恢复时间要求更严格(更短的 Trr),则应寻找专用高速整流或软恢复二极管;若对 Vr 有更高要求,可选择更高耐压级别的器件。
  • 在实际选型前建议参考完整数据手册,确认温升曲线、频率相关损耗及封装热阻等参数。

六、检验与质量控制建议

在批量采购或设计封装前,建议对样品进行以下验证:正向压降与额定电流下的温升测试、反向耐压与反向泄漏测试、反向恢复时间及浪涌承受能力测试,以确保在目标工作条件下满足可靠性与寿命要求。

总结:US2M 为一款兼具高耐压与较快恢复特性的 SMA 封装整流二极管,适合中高压电源与开关电路中作为可靠的整流或续流元件。选型时应关注散热、开关频率及浪涌条件,结合具体电路环境进行验证。若需进一步详细参数或封装机械图,请联系伯恩半导体或索取完整数据手册。

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