WMSIC Electronic Components

YONGYUTAI US1M

ModelUS1M
PackageSOD-123FL
BrandYONGYUTAI
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
YONGYUTAI US1M
Type
YONGYUTAI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YONGYUTAI
Electronic Component
US1M
Electronic Component
1
Package
SOD-123FL
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.096g
Electronic Component
1
Electronic Component
BM0228560698
Current
1A
Diode
1
Current(Ir)
5uA@1kV
(Vf)
1.65V@1A
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.

US1M 快恢复/高效率二极管 产品概述

一、产品简介

US1M 是永裕泰(YONGYUTAI)推出的一款独立式快恢复/高效率整流二极管,采用 SOD-123FL 表面贴装封装。器件面向中高压、开关电源及整流应用,能够在开关转换和高电压环境下提供低损耗、快速恢复的整流性能。

二、主要特点

  • 正向压降低:Vf = 1.65 V @ IF = 1 A,降低导通损耗,有利于提升效率并减少热量产生。
  • 高耐压:直流反向耐压 Vr = 1 kV,适用于高电压整流与保护场合。
  • 低反向漏电:Ir = 5 μA @ Vr = 1 kV,在高压下保持较小漏流,利于提高系统静态功耗表现。
  • 快恢复性能:反向恢复时间 Trr = 75 ns,减少开关过程中的能量回收与振铃,提高系统抗干扰能力。
  • 宽温度范围:工作结温 -55 ℃ 到 +150 ℃,适应较宽的工业环境温度。

三、典型电气参数(关键值)

  • 正向电流(整流电流):1 A
  • 正向压降(典型):1.65 V @ 1 A
  • 反向耐压:1000 V
  • 反向电流:5 μA @ 1000 V
  • 反向恢复时间:75 ns
  • 工作结温范围:-55 ℃ ~ +150 ℃

(注:以上为主要指标,详细极限与瞬态参数请参照厂方完整数据手册。)

四、应用场景

  • 开关电源(SMPS)中的快速整流与续流二极管。
  • 功率因数校正(PFC)电路的高压整流。
  • 逆变器与电机驱动回路的续流/保护二极管。
  • 高压整流与电源前端保护电路。
  • 其他要求高耐压、低漏电与较快恢复的电源与功率电子应用。

五、封装与热管理

SOD-123FL 为低剖面表面贴装封装,适合空间受限、需自动化贴装的生产工艺。尽管正向压降较低,但在持续 1 A 工作条件下仍存在一定功耗,建议在 PCB 布局时:

  • 提供合理的铜面积用于散热(热沉/散热铜箔)。
  • 在高频开关场合注意走线短而粗,减小寄生电感。
  • 根据系统热仿真或经验预留温升余量,避免长期靠近高温元件。

六、可靠性与使用注意事项

  • 器件工作结温上限为 +150 ℃,设计时应保证结温不超过该值。
  • 在焊接过程中应遵循常规 SMD 温度曲线,避免过高回流峰值造成封装应力或性能退化。
  • 存储与贴装前应采取防潮防静电措施,常规表面贴装元件的防潮回流工艺适用。
  • 高压测试或耐压工作时注意安全规范,防止过压冲击导致反向击穿。

七、典型选型与设计建议

  • 若电路峰值电流或冲击电流超过 1 A,应选用额定电流更高或并联使用,并注意均流。
  • 对于更高开关频率或更高效率需求,可评估更低 Trr 或肖特基类器件,但需权衡耐压与漏电特性。
  • 在高压整流节点设计时,确保器件 Vr 高于电路最大可能的反向峰值并留有安全余量(例如 20% 以上)。

总结:US1M(SOD-123FL)以其 1 kV 高耐压、1 A 整流能力、1.65 V 正向压降和 75 ns 快恢复时间,为高压开关电源、PFC 与高压整流场合提供了一种兼顾效率与可靠性的表面贴装二极管解决方案。

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