WMSIC Electronic Components

TWGMC US3M Fast Recovery Rectifier US3M

ModelUS3M
PackageSMB
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 US3M
Type
TWGMC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
US3M
Electronic Component
1
Package
SMB
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.2g
Electronic Component
1
Electronic Component
BM0265082571
Current
3A
Diode
1
Current(Ir)
5uA
(Vf)
1.65V@3A
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.

US3M 整流二极管产品概述

一、产品核心定位与封装形式

US3M是台湾迪嘉(TWGMC)推出的独立式高速整流二极管,采用行业主流的SMB表面贴装封装(DO-214AA),体积紧凑(约2.7×3.8×1.8mm),适配中小功率电子设备的小型化设计需求。其核心定位为高频/高速整流场景,兼顾宽温范围与浪涌耐受能力,可替代同规格快恢复二极管或部分肖特基二极管的应用,尤其适合对效率、体积有要求的中小功率电路。

二、关键电气参数深度解析

US3M的电气参数针对中小功率高速整流场景做了针对性优化,核心参数特点清晰:

1. 正向导通特性

  • 额定直流整流电流(IF):3A(平均),可稳定承载持续3A的正向电流,满足18W~60W功率段的电源需求;
  • 正向压降(Vf):1.65V@3A,导通损耗适中,在高频应用中可平衡发热与效率,避免普通快恢复管过高的压降或肖特基管过低的耐压问题;
  • 非重复峰值浪涌电流(IFSM):90A(8.3ms半波),能承受瞬态过流冲击(如电源启动瞬间、负载突变),大幅提升电路抗干扰能力。

2. 反向阻断特性

  • 直流反向耐压(VR):1kV,满足工业/车载等场景的高电压波动需求(如90~265VAC宽输入电源);
  • 反向漏电流(Ir):5μA(额定反向电压下),漏电流极低,反向阻断性能优异,减少待机损耗;
  • 反向恢复时间(Trr):75ns,是普通硅整流管(Trr≥1μs)的1/13左右,大幅降低高频下的反向恢复损耗,可适配100kHz以上的开关电源。

3. 温度与功率特性

  • 工作结温范围:-55℃~+150℃,覆盖工业级宽温需求(如车载、户外设备),高低温下性能稳定;
  • 结壳热阻:结合封装与电流能力,可支持持续3A负载下的有效散热,无需额外复杂散热设计。

三、典型应用场景适配

US3M的参数特性使其适配多个细分场景,核心应用如下:

1. 中小功率开关电源

作为次级整流管,Trr75ns可匹配50200kHz的开关频率(如手机快充适配器、笔记本电源),3A电流覆盖18W60W功率段,Vf1.65V的导通损耗在该功率下可接受,同时1kV耐压满足宽输入电压范围(如90~265VAC)。

2. 车载电子模块

宽温范围(-55~+150℃)适配车载环境的高低温变化(如发动机舱、仪表盘),90A浪涌能力可抵御汽车启动/熄火时的瞬态脉冲,1kV耐压满足车载12V/24V系统的过压防护需求,常用于车载充电器、传感器控制电路。

3. 小型工业控制电路

SMB封装体积小,适合紧凑的PLC、传感器模块;独立式配置便于电路设计(无需并联/串联),1kV耐压可应对工业现场的电压波动(如电机启动时的尖峰电压),3A电流满足控制板的电源供应。

4. 消费电子适配器

如智能音箱、路由器的电源模块,US3M的小型化与低漏电流特性可提升设备能效,同时浪涌耐受能力避免因插拔电源导致的损坏,降低售后成本。

四、可靠性与环境适应性

US3M的可靠性设计针对实际应用场景做了强化,核心优势明显:

  1. 浪涌耐受:IFSM90A(8.3ms)符合IEC61000-4-5浪涌标准,可承受电源系统的瞬态过流,避免器件击穿;
  2. 温度稳定性:高低温下反向漏电流变化小(25℃时5μA,150℃时≤10μA),保证宽温环境下的反向阻断性能;
  3. 封装可靠性:SMB封装采用环氧树脂封装,抗机械应力、耐潮湿,符合AEC-Q101(车载)、MIL-STD-202(工业)可靠性标准,可通过高低温循环、振动测试。

五、品牌与市场价值

台湾迪嘉(TWGMC)作为专业半导体厂商,US3M的一致性好、性价比高,适合国内中小功率电子设备厂商的成本控制需求;SMB封装为行业通用规格,易采购、易替换,可兼容主流贴装生产线,降低客户的供应链风险。同时,TWGMC提供完善的技术支持与售后保障,适合批量应用的稳定供应。

总结:US3M是一款高性价比的高速整流二极管,兼顾高频性能、宽温范围与浪涌耐受,适配中小功率开关电源、车载电子、工业控制等场景,是替代同规格进口器件的优质选择。

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