WMSIC Electronic Components

SUPSiC GC4D20120H

ModelGC4D20120H
PackageTO-247-2
BrandSUPSIC
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
SUPSi C GC4D20120H
Type
SUPSIC
Minimum package
30 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUPSIC
Electronic Component
GC4D20120H
Electronic Component
1
Package
TO-247-2
Electronic Component
Diode
Electronic Component
8.24g
Electronic Component
1
Electronic Component
BM0229953536
Current
54A
Diode
1
Current(Ir)
200uA@1200V
(Vf)
1.5V
Electronic Component
55℃~+175℃
Electronic Component
Electronic Component
Electronic Component
30

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

GC4D20120H 产品概述

GC4D20120H 是 SUPSiC(国晶微半导体)推出的一款高压碳化硅整流二极管,采用 TO-247-2 封装,针对高效率开关电源与中高压功率电子系统设计。器件具有高耐压、高温工作能力与较低的开关损耗,适合用于需要高功率密度和高可靠性的工业级应用。

一、主要参数

  • 器件型号:GC4D20120H
  • 品牌:SUPSiC(国晶微半导体)
  • 二极管配置:1 个独立式(单只二极管)
  • 直流整流电流(If):54 A
  • 直流反向耐压(Vr):1.2 kV
  • 正向压降(Vf):1.5 V(典型值,具体随电流和温度变化)
  • 反向电流(Ir):200 µA @ 1200 V
  • 非重复峰值浪涌电流(Ifsm):130 A(单次浪涌能力)
  • 总电容电荷(Qc):52 nC(与开关损耗和电磁干扰相关)
  • 总功率耗散(Ptot):352 W(封装极限耗散,实际应用需参照散热条件)
  • 工作结温范围(Tj):-55 ℃ ~ +175 ℃
  • 封装:TO-247-2

二、电性能与优势解析

GC4D20120H 基于碳化硅(SiC)功率器件技术,表现出以下关键优势:

  • 高耐压(1.2 kV)适配中高压系统设计,减少级联器件数量,简化拓扑。
  • 正向压降约 1.5 V,在大电流工况下依然保持较小的导通损耗,有利于提高系统效率。
  • 反向电流在满耐压下保持低至 200 µA,降低空载或高压工况下的泄漏损耗。
  • Qc = 52 nC 表示器件开通/关断时的电荷量较小,能够显著降低开关损耗与开关过程中的电磁干扰(EMI)。

三、热管理与可靠性

  • 工作结温上限可达 175 ℃,适合高温环境及高功率密度设计,但长期可靠运行仍依赖于良好的散热设计与温度控制。
  • 标称总功率耗散 352 W 为封装在理想热条件下的极限值,实际电路设计应基于基板/散热器的热阻、散热界面材料及环境温度进行余量计算。
  • 在频繁出现浪涌或工作温度较高的系统中,应关注反向泄漏随温度上升而增加的特性,必要时加入过温保护或电流限流策略。

四、封装与安装建议

  • TO-247-2 封装为常见的功率封装,便于安装在散热器或公用散热基板上。
  • 安装时应使用合适的导热垫或硅脂,确保结−壳(或结−散热器)热阻最小化;紧固螺栓扭矩应遵循厂家建议以避免应力损伤。
  • 引线与引脚长度、排布会影响寄生电感与开关过电压,尽量缩短引线并优化布局以降低尖峰与振铃。

五、典型应用场景

  • 高功率因数校正(PFC)级和中高压整流单元
  • 太阳能逆变器与储能变流器的高压整流/阻断单元
  • 电动车充电桩、UPS、电源模块及工业变频器
  • 高压开关电源与中频变换器中作为低损耗整流或阻断器件

六、设计注意事项

  • Ifsm 为 130 A,属于非重复峰值浪涌规格,仅用于短时浪涌;在系统设计中应提供合适的浪涌抑制与限流保护。
  • 虽然 SiC 二极管具有快速切换特性,但电路的寄生电感可能导致开关尖峰,推荐在必要时加装软恢复网络或 RC 钳位以保护器件。
  • 在并联使用以提升电流能力时需考虑电流分享问题,建议进行热匹配与电阻均流设计。
  • 关注反向泄漏对系统空载损耗与热稳定性的影响,特别是在高温工况下。

七、选型建议与替代思路

  • 若系统需更高电流,可通过并联同型号器件并做好均流设计;若需更高耐压,可考虑 10xxV 以上等级的 SiC 器件或级联方案。
  • 在要求更低开关损耗的高频应用中,可评估与同步整流或 SiC MOSFET 搭配使用以进一步提升效率。

总结:GC4D20120H 提供了 1.2 kV 耐压、54 A 额定电流与较低 Qc、电流漏失控制良好的组合,是面向中高压、高效率功率电子系统的可靠选择。具体设计请依据系统工作点、散热条件与浪涌要求进行细化验证。若需器件数据手册或热阻/包封详细参数,可提供进一步支持并协助电路级优化。

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