WMSIC Electronic Components

SUPSiC GC3M0075120K

ModelGC3M0075120K
PackageTO247-4
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SUPSi C GC3M0075120K
Type
SUPSIC
Minimum package
30 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SUPSIC
Electronic Component
GC3M0075120K
Electronic Component
1
Package
TO247-4
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
8.947g
Electronic Component
1
Electronic Component
BM0229953542
Operating Temperature
40℃~+175℃
Power Dissipation(Pd)
136W
Electronic Component
Electronic Component
Electronic Component
30
Voltage(Vdss)
1.2kV

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

GC3M0075120K 产品概述

GC3M0075120K 是 SUPSiC(国晶微半导体)推出的一款 1.2 kV 级别 N 沟道功率 MOSFET,采用 TO-247-4 封装,面向高压功率转换和工业级应用。该器件在高耐压、高温工作与较高电流能力之间取得平衡,适用于需要高电压阻断与快速开关特性的系统。

一、主要参数概览

  • 器件类型:N 沟道功率 MOSFET
  • 漏源电压 Vdss:1.2 kV
  • 连续漏极电流 Id:32 A
  • 最大耗散功率 Pd(器件封装条件):136 W
  • 导通电阻 RDS(on):75 mΩ @ Vgs = 15 V
  • 栅极阈值电压 Vgs(th):2.5 V
  • 栅极总电荷 Qg:53 nC
  • 输入电容 Ciss:1.39 nF
  • 输出电容 Coss:58 pF
  • 反向传输电容 Crss(Cgd):2 pF
  • 工作温度范围:-40 ℃ ~ +175 ℃
  • 封装:TO-247-4
  • 品牌:SUPSiC(国晶微半导体)

二、关键电气特性与意义

  • 高电压耐受(1.2 kV):满足中高压电源、光伏逆变、牵引、输配电和高压断路等场景的电压要求。
  • 相对较低的导通电阻(75 mΩ @15 V):在开通状态下能有效降低导通损耗,但在大电流工作点仍需重视热管理。举例:在 32 A 持续电流下,理想导通损耗约为 I^2·R ≈ 76.8 W,接近器件 Pd 额定值,因此须配合合适散热设计。
  • 较小的 Coss(58 pF)与较低 Crss(2 pF):有利于降低功率开关过程中的能量存储与应力,能够实现较快的开关速度并降低开关损耗。
  • 较高的栅极电荷 Qg(53 nC)与 Ciss(1.39 nF):意味着在高频快速开关时需要较大驱动电流,要求驱动器有足够驱动能力且注意栅极驱动损耗。

三、典型应用场景

  • 中高压开关电源与反激/正激拓扑的主开关器件
  • 光伏逆变器与并网设备中的高压级开关
  • 工业变频器、伺服驱动与电机控制(高压侧)
  • 牵引、电驱与储能系统中的高压转换单元
  • 高频开关级、软开关辅助元件(配合适当驱动与缓冲网络)

四、驱动与布局建议

  • 栅极驱动电压建议 12–15 V:Vgs(th)≈2.5 V,典型工作驱动 15 V 可获得标注导通电阻。
  • 驱动器功率与驱动速度:由于 Qg = 53 nC,在快速开关条件下需要较大瞬时驱动电流;建议使用低阻抗门驱或设计适当的栅极驱动缓冲级。
  • 栅极阻尼:为控制振铃和开关过冲,通常采用 10–47 Ω 的栅极电阻,具体取值需在系统试验中平衡开关损耗与电磁兼容(EMC)。
  • 布局要点:最小化开关回路寄生电感(漏感),确保电源地与功率地分离;栅极到源的回路应为最短路径;若封装带有独立源感脚(TO-247-4 常见),优先采用 Kelvin 源连接以避免驱动误动作。
  • 保护电路:建议在高压转换中加入 TVS、RC 或 RCD 吸收网络以限制浪涌和避免过压应力;实现过流/脱阻检测(如去饱和检测)以保护器件免受短路损害。

五、热管理与并联建议

  • 散热设计:在高电流或频繁开关条件下需采用强制风冷或热沉,并保证器件结温(Tj)在安全范围内运行;考量到器件 Pd 为 136 W,实际允许耗散受环境、散热器和 PCB 散热能力影响较大。
  • 并联使用:若需在更高电流下工作,可并联多个 MOSFET,但应确保良好电流分配(短引线、同一温度条件)并使用小阻值共享电阻或独立源阻来提升均流稳定性。并联前需评估热敏系数与 RDS(on) 的温度依赖以避免热失控。

六、可靠性与注意事项

  • 工作温度范围宽(-40 ℃ 到 +175 ℃):适合苛刻工业环境,但仍需重点关注结温上限与长期热循环对器件寿命的影响。
  • 开关过电压与振铃会增加应力:高 dv/dt 环境下,注意栅极驱动隔离、布局优化与吸收元件设计。
  • 器件测试与工程验证:在最终产品中建议做完整的热仿真、短路能量测试和长期老化验证,评估系统级的可靠性和保护策略。

总结:GC3M0075120K 结合了 1.2 kV 高压能力、TO-247-4 的良好散热与安装特性,以及适中的导通电阻与低 Coss 特性,适合中高压功率转换场合。设计时应重点关注驱动能量、开关损耗与热管理,以发挥器件在效率与可靠性上的优势。若需更详细的电气特性曲线、热阻或封装引脚图,请参考厂商数据手册或联系 SUPSiC 技术支持。

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