WMSIC Electronic Components

JUXING JX3090K

ModelJX3090K
PackageTO-252
BrandJUXING
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
JUXING JX3090K
Type
JUXING
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JUXING
Electronic Component
JX3090K
Electronic Component
1
Package
TO-252
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.432g
Electronic Component
1
Electronic Component
BM0226441892
Operating Temperature
55℃~+175℃
Power Dissipation(Pd)
65W
Electronic Component
Electronic Component
Electronic Component
2500
Voltage(Vdss)
30V
Capacitor(Ciss)
320pF

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

JX3090K 产品概述

一、产品简介

JX3090K 是钜兴(JUXING)推出的一款高电流、低导通损耗的 N 沟型功率 MOSFET,封装为 TO-252(DPAK)。器件额定耐压 30V,适合在中低电压、高电流的开关和线性应用中替代传统功率开关器件。单颗器件设计用于要求紧凑布局与良好热管理的功率模块和散热良好的 PCB 平台。

二、主要参数

  • 类型:N 沟道 MOSFET(1 个)
  • 漏源电压 Vdss:30V
  • 连续漏极电流 Id:90A
  • 导通电阻 RDS(on):3.1 mΩ @ Vgs=10V、Id=30A
  • 阈值电压 Vgs(th):1.6V
  • 总栅极电荷 Qg:45 nC @ Vgs=10V
  • 输入电容 Ciss:320 pF @ 15V
  • 反向传输电容 Crss:300 pF @ 15V
  • 功耗 Pd:65W
  • 工作结温 Tj:-55℃ ~ +175℃
  • 封装:TO-252(DPAK)

三、性能亮点

  • 极低的 RDS(on)(3.1 mΩ)在开关导通时显著降低导通损耗,适合需要高效率的小型化电源或功率模块。举例:在 30A 导通时,导通损耗约为 I^2·R ≈ 2.79 W,便于在合理散热条件下实现高电流输出。
  • 高额定连续电流(90A)和 65W 功耗能力,使器件在短时高脉冲或持续大电流场景下具有良好表现,但实际允许电流受 PCB 散热能力和结-壳温升限制。
  • 比较大的栅极电荷(45 nC)与较高 Crss(300 pF)提示在快速开关时 Miller 效应明显,需要配合合适的驱动与阻尼以控制开关过冲和 EMI。

四、热管理与封装建议

TO-252 表面贴装封装利于在 PCB 上实现大面积铜箔散热。建议事项:

  • 在器件底部和散热焊盘处保留足够的铜面积并采用多层铜、热过孔(thermal vias)将热量传导至内层或底层散热平面;
  • 依据实际工作电流计算结温并留裕量,考虑到 Pd=65W 通常基于特定散热条件,实际功耗承载受 PCB 与环境散热限制;
  • 在并联多个器件时,注意通过源电阻或均流设计平衡电流差异,避免单管过热。

五、应用建议与典型场景

  • 同步整流或降压转换器(中功率 DC-DC)、输入开关、负载开关;
  • 汽车辅助电源、车身控制模块(适用高温工作环境);
  • 电机驱动、线性功率放大或保护断路场景。
    栅极驱动建议使用 10V 满栅压以获得标定 RDS(on),在高频开关时按需加入 5–20 Ω 门极电阻以控制 dv/dt 和振铃;门极驱动功耗近似为 Pdrive ≈ Qg·Vgate·fs,例如在 500 kHz、Vgate=10V 条件下约为 0.225 W。

六、选型与注意事项

  • 若需在高频下工作,请关注 Qg、Ciss 与 Crss 对开关损耗与 EMI 的影响,必要时选择更强驱动或增加阻尼;
  • 对热设计要严格验证:标称 Id 和 Pd 需结合实际 PCB 热阻与散热条件评估;
  • 采用 TO-252 封装时注意回流焊工艺与焊盘设计,保障可靠的热接触和电气连接;
  • 建议在有反向电感或高 dv/dt 的场合配合 TVS、RC 吸收或合理的缓启动策略,保护器件免受应力冲击。

总结:JX3090K 以其低导通电阻、高电流承载和宽工作温度覆盖的特点,适合追求高效率和紧凑设计的中低压功率应用,但在高频和高功耗场合需配合良好的驱动与热设计以达到最佳性能与可靠性。

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