WMSIC Electronic Components

Jingdao Microelectronics ES3GBF

ModelES3GBF
PackageSMBF
BrandElectronic
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic ES3GBF
Type
Jingdao Microelectronics
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
ES3GBF
Electronic Component
1
Package
SMBF
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.134g
Electronic Component
1
Electronic Component
BM0228986866
Current
3A
Diode
1
Current(Ir)
5uA@400V
(Vf)
1.25V@3A
Electronic Component
55℃~+150℃
Electronic Component
Electronic Component
Electronic Component
5000

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

ES3GBF 产品概述

ES3GBF 是晶导微电子推出的独立式快恢复/高效率整流二极管,采用 SMBF 表面贴装封装,适用于中高电压开关电源与整流场合。器件在 400V 反向耐压下,兼顾较低的正向压降与较快的反向恢复性能,适合要求效率与开关性能平衡的电源设计。

一、主要性能特点

  • 独立式单颗二极管设计,便于并联或单一通道使用。
  • 低正向压降:Vf = 1.25V @ If = 3A,降低导通损耗,提高整机效率。
  • 高耐压等级:直流反向耐压 Vr = 400V,适用高压整流与阻断场合。
  • 低反向漏电:Ir = 5µA @ Vr = 400V,静态功耗小,适合待机功耗受控的系统。
  • 快恢复特性:Trr = 35ns,减少开关转换过程中的能量回收及振铃,降低开关损耗。
  • 宽温度范围:工作结温 Tj = -55℃ ~ +150℃,满足工业级温度环境要求。

二、典型电气参数(关键值)

  • 正向压降 Vf:1.25V @ If = 3A
  • 整流电流 If(av):3A(整流工作条件)
  • 反向漏流 Ir:5µA @ Vr = 400V
  • 反向恢复时间 Trr:35ns
  • 直流反向耐压 Vr:400V
    (注:具体电气特性随工作温度和测试条件变化,设计时请参考完整数据手册)

三、封装与热管理建议

  • 封装:SMBF(表面贴装),适合自动贴装与回流焊工艺。
  • 导热与散热:在 3A 工作点下,典型瞬时导通损耗约为 3A×1.25V = 3.75W;为保证长期可靠性,电路板应提供足够的铜箔散热面积及通孔散热路径。
  • 布局建议:尽量缩短电流回路路径、降低寄生电感,开关节点附近使用较短、宽的走线并配置合适的地平面,以减小开关干扰与过冲。
  • 焊接工艺:兼容标准无铅回流焊曲线;注意避免过冲升温超出器件热极限,焊接与回流参数按照晶导微电子推荐的封装资料执行。

四、典型应用场景

  • 开关电源(SMPS)次级整流或主回路整流
  • 功率因数校正(PFC)电路中的整流和回流二极管
  • 适配器、充电器、LED 驱动电源的高压整流
  • 逆变器、电机驱动等含有高 dv/dt 的开关场合,作为快恢复整流元件

五、使用与选型要点

  • 对于高频高开关速度的应用,Trr = 35ns 提供较好的权衡,但若追求极低反向恢复电流或更快恢复,可考虑专用快恢复或超快速整流/肖特基方案。
  • 在高温或高漏电容应用中,需考虑 Ir 随温度上升的增加,对待机漏电或小电流工作模式进行评估。
  • 并联使用时应注意均流措施与热均衡,避免单颗器件过载。
  • 若电路存在较大反向恢复能量,应配合吸收或夹紧元件(如 RC 缓冲、TVS)抑制电压尖峰,保护开关器件。

总结:ES3GBF 以 400V 的耐压等级、1.25V@3A 的较低正向压降及 35ns 的快恢复特性,适合对效率与开关性能都有要求的中高压整流场合。合理的电路布局与散热设计可发挥其最佳性能,满足工业级应用的可靠性需求。若需更详细的电气特性曲线和封装尺寸,请参阅晶导微电子提供的完整规格书或联系技术支持。

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