WMSIC Electronic Components

CJ US2M

ModelUS2M
PackageSMAG
BrandCJ
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CJ US2M
Type
CJ
Minimum package
5000

Technical parameters

Electronic Component
CJ
Electronic Component
US2M
Electronic Component
1
Package
SMAG
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.111g
Electronic Component
1
Electronic Component
BM0264678364
Current
2A
Diode
1
Current(Ir)
5uA
(Vf)
1.7V@2A
Electronic Component
55℃~+150℃
Electronic Component
5000
Voltage Rating(Vr)
1kV
(Trr)
75ns

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

US2M高效率整流二极管产品概述

一、核心身份与品牌背书

US2M是江苏长电科技(CJ) 推出的一款成熟商用高效率快恢复整流二极管,属于长电US系列整流器件的核心型号。该器件采用表面贴装封装(SMAG),定位为中功率、中高压、快速响应型整流解决方案,广泛适配对效率、速度有要求的消费电子、工业控制、车载电子等场景。长电作为国内半导体龙头企业,其产品在性能稳定性、可靠性及供货能力上均具备行业竞争力,US2M是其在整流领域的经典型号之一。

二、关键电气参数深度解析

US2M的参数设计围绕效率、速度、耐压、可靠性四大核心维度,具体解析如下:

1. 正向特性:低损耗高效率

  • 正向压降(Vf):1.7V@2A——在额定整流电流(2A)下,正向导通压降仅1.7V,远低于普通硅整流管(如1N4007在2A时Vf约1.1V,但线性上升趋势明显),有效降低导通损耗,提升电源转换效率。
  • 额定整流电流(If):2A——连续工作的最大正向电流,满足10-50W中等功率电路的整流需求(如手机适配器、小型LED驱动)。

2. 反向特性:高耐压低漏损

  • 直流反向耐压(Vr):1kV——最大反向直流电压可达1000V,覆盖市电220V整流后(滤波电压约310V)的充足裕量,适配部分高压应用场景。
  • 反向电流(Ir):5μA@1000V——反向电压1000V时,漏电流仅5μA,漏损极低,进一步降低待机功耗,提升整体效率。

3. 动态特性:快速恢复适配高频

  • 反向恢复时间(Trr):75ns——反向导通转截止的时间仅75ns,属于快恢复整流管范畴(普通整流管Trr通常为μs级),可适配几十kHz至百kHz的高频开关电源,避免反向恢复损耗过大导致的发热问题。

4. 可靠性参数:宽温抗冲击

  • 工作结温范围:-55℃~+150℃——覆盖工业级宽温需求,可适应户外、车载等极端温度环境(如车载电子工作温度通常为-40~125℃,留有充足裕量)。
  • 非重复峰值浪涌电流(Ifsm):50A——单次最大浪涌电流可达50A,能有效抵御开机瞬间、负载突变等浪涌冲击,提升电路可靠性。

三、封装与物理特性

US2M采用SMAG表面贴装封装(用户明确标注为SMAG,非SMBG),具备以下特点:

  • 体积紧凑:适合高密度PCB设计(如小型适配器、便携设备);
  • 自动化贴装:兼容SMT生产线,提高批量生产效率;
  • 标准引脚布局:符合行业设计规范,便于电路布局与调试。

四、典型应用场景

结合参数特性,US2M的典型应用场景包括:

  1. 开关电源:AC-DC适配器(手机、笔记本)、DC-DC转换器(LED驱动电源),利用低Vf、快Trr提升转换效率;
  2. 工业控制电源:PLC、变频器等设备的整流模块,宽温范围适配工业环境;
  3. 车载电子:车载充电器、车载显示屏电源,满足-55~150℃的温度要求;
  4. LED驱动电源:中功率LED照明(路灯、面板灯)的整流电路,低损耗减少发热;
  5. 小型高压设备:小型逆变电源、高压检测电路的整流环节。

五、性能优势与市场适配性

US2M的核心优势在于**“效率+速度+可靠性”的平衡**:

  • 对比普通整流管:快Trr适配高频,低Vf/Ir提升效率,宽温增强可靠性;
  • 对比高压快恢复管:2A电流覆盖中等功率,1kV耐压满足主流应用,成本更具竞争力;
  • 品牌保障:长电的量产能力与质量控制,适合批量商用场景。

综上,US2M是一款适配中功率、中高压、高频场景的高效率快恢复整流二极管,在消费电子、工业、车载等领域具备广泛应用价值。

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