WMSIC Electronic Components

TWGMC US1J Fast Recovery Rectifier US1J

ModelUS1J
PackageSMA(DO-214AC)
BrandTWGMC
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
TWGMC US1J
Type
SMA(DO-214AC)
Minimum package
2000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
US1J
Electronic Component
1
Package
SMA(DO-214AC)
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.101g
Electronic Component
1
Electronic Component
BM0265826648
Current
1A
Diode
1
Current(Ir)
5uA
(Vf)
1.65V@1A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
2000

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

US1J快恢复二极管产品概述

一、产品核心定位与应用场景

US1J是台湾迪嘉(TWGMC)推出的独立式快恢复/高效率二极管,主打小功率中高压高频应用场景,专为需要快速开关特性、低损耗的电路设计。其核心定位是替代普通整流管,提升开关电路的效率与可靠性,广泛适配消费电子、工业控制、通信设备等领域的电源设计需求。

二、关键电气参数详解

US1J的核心参数针对高频整流场景优化,关键指标如下:

  • 正向压降(Vf):1.65V(@1A),在额定工作电流下保持稳定,平衡正向损耗与开关速度;
  • 直流反向耐压(Vr):600V,满足220V交流整流后(峰值310V)的余量需求,覆盖中高压应用;
  • 持续整流电流(IF):1A,适配小功率电路(如手机充电器、LED驱动)的持续负载;
  • 反向恢复时间(Trr):75ns,远快于普通整流管(如1N4007 Trr>500ns),大幅降低开关损耗;
  • 反向漏电流(Ir):5μA(典型值),待机状态下漏电流极小,提升低功耗设备的效率;
  • 非重复浪涌电流(Ifsm):30A(峰值),可承受开机、负载突变等瞬间大电流冲击;
  • 工作结温范围:-55℃~+150℃,宽温适应极端环境(如工业高温、户外低温)。

三、封装与物理特性

US1J采用SMA(DO-214AC)贴片封装,属于小型化表面贴装结构,具有以下特点:

  • 体积紧凑(约2.7mm×1.6mm×1.1mm),节省PCB空间,适配超薄、小型化产品(如便携充电器、LED灯泡);
  • 贴片式设计,支持自动化贴装,提高生产效率,降低人工成本;
  • 引脚布局简单,电路设计无需复杂匹配,方便工程师快速集成。

四、性能优势分析

相较于普通整流管与同规格快恢复二极管,US1J的核心优势体现在:

  1. 高频效率提升:75ns反向恢复时间,减少开关过程中的能量损耗,尤其适合几十kHz至几百kHz的开关电源;
  2. 低功耗待机:5μA反向漏电流,在待机或轻载状态下功耗可忽略,满足低功耗产品需求;
  3. 可靠性保障:30A浪涌耐受能力与150℃最高结温,应对瞬间冲击与高温环境时不易损坏;
  4. 宽适配性:600V耐压+1A电流,覆盖大部分小功率中高压应用,无需频繁切换器件型号。

五、典型应用场景

US1J的参数特性决定了其在以下场景中表现突出:

  • 开关电源次级整流:手机充电器、笔记本适配器、平板电源等小功率电源的输出整流;
  • LED驱动电源:小功率LED灯串(如台灯、球泡灯)的整流与续流;
  • 小型逆变电路:车载12V转220V逆变电源、太阳能微型逆变器的开关支路;
  • 通信设备电源:基站、路由器、交换机等设备的电源模块整流;
  • 工业控制电路:小型PLC、传感器节点的供电整流。

六、可靠性与环境适应性

US1J的设计兼顾可靠性与环境适应能力:

  • 宽温工作:-55℃~+150℃结温范围,无需额外散热片即可在工业高温(如车间、户外机柜)下稳定工作;
  • 低老化率:低反向漏电流与稳定的正向压降,长期工作下性能衰减慢,寿命可达数万小时;
  • 抗冲击能力:非重复浪涌电流30A,可有效避免开机浪涌、负载短路等瞬间冲击导致的器件损坏。

总结而言,US1J作为TWGMC推出的高性价比快恢复二极管,以快恢复特性、宽参数范围与小型化封装,成为小功率中高压高频电源设计的优选器件,适配多领域电子设备的性能需求。

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