WMSIC Electronic Components

CJ ES3G

ModelES3G
PackageSMBG
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 ES3G
Type
CJ
Minimum package
3000

Technical parameters

Electronic Component
CJ
Electronic Component
ES3G
Electronic Component
1
Package
SMBG
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.39g
Electronic Component
1
Electronic Component
BM0264338864
Current
3A
Diode
1
Current(Ir)
10uA
(Vf)
1.25V@3A
Electronic Component
55℃~+150℃
Electronic Component
3000
Voltage Rating(Vr)
400V
(Trr)
35ns

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

CJ ES3G 快恢复二极管产品概述

CJ ES3G是江苏长电(CJ)推出的一款独立式快恢复/高效率二极管,针对中小功率高频整流场景设计,兼顾低损耗、高速切换与可靠性,广泛应用于消费电子、工业控制及新能源等领域。

一、产品定位与品牌基础

江苏长电(CJ)作为国内半导体封装测试龙头企业,拥有20余年功率器件研发制造经验,ES3G是其快恢复二极管产品线中的经典型号。该产品定位于**“高速+中高压+低损耗”的平衡型器件**,既区别于普通硅整流管(反向恢复慢、损耗高),又弥补了肖特基二极管(耐压低、漏电流大)的短板,适配现代电子设备小型化、高效率的需求。

二、核心电气参数深度解析

ES3G的参数设计围绕“提升效率、适应高频”核心目标,关键指标如下:

1. 正向导通特性

  • 正向压降(Vf):1.25V@3A:远低于普通硅整流管(典型1.5V以上),以3A持续电流为例,单管导通损耗仅3.75W,可减少电源模块发热,提升转换效率(实测在开关电源中可使效率接近90%);
  • 直流整流电流(Io):3A:满足多数中小功率设备的持续负载需求(如手机充电器、小型逆变器)。

2. 反向阻断与切换特性

  • 直流反向耐压(Vr):400V:可应对常规电源电路的电压波动(如AC220V整流后的310V母线电压);
  • 反向电流(Ir):10uA(典型值):漏电流极小,进一步降低待机损耗(如电视待机状态下几乎无额外功耗);
  • 反向恢复时间(Trr):35ns:核心亮点——快恢复特性使二极管在高频开关下(如几十kHz的开关电源)能快速关断,减少反向恢复损耗,避免电路干扰(普通整流管Trr为微秒级,无法适配高频场景)。

3. 耐环境与浪涌能力

  • 工作结温范围:-55℃~+150℃:覆盖工业级宽温需求(如户外太阳能逆变器、车载设备);
  • 非重复峰值浪涌电流(Ifsm):100A:可承受开机瞬间或负载突变的大电流冲击(如充电器插电瞬间的浪涌),提升电路可靠性。

三、封装与应用适配性

ES3G采用SMBG表面贴装封装,具有以下优势:

  • 体积小巧:典型尺寸约3.0×2.5×1.1mm,适配自动化贴片生产,节省设备内部空间(如手机充电器、电视电源的紧凑布局);
  • 散热适配:封装热阻设计与宽结温范围配合,即使无额外散热片,也能满足多数应用场景的温度要求(如150℃结温下仍可稳定工作)。

四、典型应用场景

ES3G的性能特点使其适配多领域需求:

  1. 开关电源适配器:手机、笔记本电脑充电器的高频整流环节,35ns快恢复+低Vf提升效率;
  2. 新能源逆变器:太阳能微型逆变器、车载12V转220V逆变器,400V耐压应对母线电压,100A浪涌承受开机冲击;
  3. 工业控制电路:PLC输入输出模块、伺服驱动器的辅助电源,-55~150℃宽温适应工业环境;
  4. 消费电子终端:液晶电视、显示器的待机电源,SMBG封装节省空间,低漏电流降低待机功耗。

五、产品优势与市场价值

ES3G的核心竞争力在于**“性能均衡+成本可控”**:

  • 对比进口同类型号(如某国际品牌FR3G),性能参数相当,但国产供应稳定,价格低15%~20%;
  • 对比肖特基二极管(如SB340),耐压从40V提升至400V,适用场景从低压扩展至中高压;
  • 对比普通快恢复管(如FR307),Vf降低0.25V以上,损耗减少约17%,发热更低。

综上,CJ ES3G作为一款高性价比快恢复二极管,凭借低损耗、高速切换、宽温耐浪涌等特性,成为中小功率高频整流场景的优选器件,广泛适配消费电子、工业、新能源等领域的需求。

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