WMSIC Electronic Components

MICRONE MEM2303M3G

ModelMEM2303M3G
PackageSOT-23-3
BrandMICRONE
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
MICRONE MEM2303M3G
Type
MICRONE
Minimum package
3000

Technical parameters

Electronic Component
MICRONE
Electronic Component
MEM2303M3G
Electronic Component
1
Package
SOT-23-3
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.046g
Electronic Component
1
Electronic Component
BM0264499080
Power Dissipation(Pd)
1.4W
Gate Voltage(Vgs)
±12V
Electronic Component
3000
Voltage(Vdss)
30V
Capacitor(Ciss)
954pF
Output Capacitor(Coss)
115pF

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

MEM2303M3G 产品概述

一、产品简介

MEM2303M3G 是南京微盟(MICRONE)推出的一款单通道 P 沟道功率 MOSFET,封装为 SOT-23-3。器件额定漏源电压 30V,适用于小功率、高密度的开关与保护电路,兼顾开通电阻与开关特性,便于在便携电源、负载断开和高侧开关等场合使用。

二、主要参数

  • 类型:P 沟道 MOSFET(单只)
  • 封装:SOT-23-3
  • 漏源耐压 Vdss:30V
  • 连续漏极电流 Id:4.2A
  • 导通电阻 RDS(on):55mΩ @ Vgs = -10V
  • 最大耗散功率 Pd:1.4W(依赖 PCB 散热)
  • 阈值电压 Vgs(th):约 1V(典型)
  • 最大栅极电压:Vgs = ±12V
  • 总栅极电荷 Qg:9.5nC
  • 输入电容 Ciss:954pF;反向传输电容 Crss:77pF;输出电容 Coss:115pF

三、性能特点

  • 低导通电阻:在充分负栅驱动(Vgs≈-10V)时 RDS(on) 仅 55mΩ,降低导通损耗,适合 1A–4A 级别负载。
  • 中等栅电荷与电容:Qg = 9.5nC、Ciss ~954pF,开关速度适中,利于在低到中等频率下实现效率与 EMI 的平衡。
  • 宽工作电压与保护裕度:Vdss 30V 适用于常见 12V/24V 较低电压系统的高侧开关或反向保护。
  • 小型封装:SOT-23-3 便于高密度 PCB 布局,适合体积受限的消费类与便携设备。

四、典型应用

  • 高侧开关与电源管理(开关电源辅助路径、负载断电)
  • 电池保护与反向接入保护(P 沟道便于与正极直接串联)
  • 便携设备的外设电源控制(传感器、无线模块供电开关)
  • 小型电机、继电器驱动的低功率场合

五、驱动与 PCB 布局建议

  • P 沟道器件的源极通常接正电源,栅极相对于源极需施加负电压以打开晶体管(例如 Vgs≈-10V 可达到规格 RDS(on))。注意 Vgs 最大为 ±12V,避免超过此范围。
  • 栅极驱动:Qg≈9.5nC,若在高频开关(数十 kHz 以上)下使用,应选用合适的栅极驱动能力以减少切换损耗和热量。
  • 热管理:封装为 SOT-23,Pd=1.4W 依赖 PCB 铜箔散热。为降低结温,建议在 PCB 对应焊盘区域增加焊盘面积与过孔,扩大铜箔散热路径。
  • 布局:保持栅极引线最短,放置旁路电容靠近器件,减小寄生电感与环路面积以降低 EMI 与振荡风险。

六、使用注意与可靠性

  • 避免在未经限压的情况下超过 Vgs ±12V 和 Vdss 30V,以防击穿或永久损伤。
  • 焊接与装配:遵循 SOT-23 封装的回流焊工艺规范,避免长时间高温导致封装应力。
  • ESD 防护:MOSFET 对静电敏感,生产与调试中应采取防静电措施。
  • 规格验证:在设计关键应用(如连续 4A 负载或较高开关频率)中,应进行热仿真与实测验证,确认在目标 PCB 与工作条件下的结温与寿命。

总结:MEM2303M3G 在 30V/4.2A 级别提供了较低的导通电阻与适中的开关特性,特别适合体积受限的高侧开关与电源管理应用。在实际设计中关注栅极驱动与 PCB 散热,可充分发挥其性能。

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