WMSIC Electronic Components

MCC SI3401AHE3-TP SI3401AHE3

ModelSI3401AHE3-TP
PackageSOT-23(TO-236)
BrandMCC
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
MCC SI3401AHE3-TP
Type
MCC
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MCC
Electronic Component
SI3401AHE3-TP
Electronic Component
1
Package
SOT-23(TO-236)
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.044g
Electronic Component
1
Electronic Component
BM0230032975
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.2W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
30V

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

SI3401AHE3-TP(P沟道MOSFET)产品概述

一、产品基本信息

SI3401AHE3-TP是美微科(MCC)推出的单管P沟道增强型MOSFET,采用小型化SOT-23(TO-236)封装,属于低压小功率功率器件范畴。该器件针对便携式电子、消费类电子等低压应用场景优化设计,兼顾体积、损耗与可靠性,可满足高密度集成与极端环境下的稳定工作需求。

二、核心电气参数解析

2.1 电压与电流规格

  • 漏源击穿电压(Vdss):30V,覆盖绝大多数低压直流电源(3.7V/5V/12V)的应用场景,避免过压损坏;
  • 连续漏极电流(Id):4.4A(直流),可稳定驱动中等功率负载(如小型电机、电池组);
  • 阈值电压(Vgs(th)):1.3V(Id=250μA时),低栅压即可实现导通,兼容3.3V、5V等常见控制电路,无需额外升压驱动;
  • 栅源电压范围:行业常规支持±20V(需注意不超规格),避免栅极过压击穿。

2.2 导通电阻与损耗

导通电阻(RDS(on)):47mΩ(Vgs=4.5V、Id=4A时),处于同类低压P沟道MOSFET的优异水平。低导通电阻直接降低导通损耗(公式:(P=I^2 \times R_{DS(on)})),例如4A负载下损耗仅约0.75W,适合电池供电设备延长续航。

2.3 电容与开关特性

  • 输入电容(Ciss):1.05nF,反映栅极充电所需能量,值适中可平衡开关速度与驱动功耗;
  • 反向传输电容(Crss):85pF,较低的Crss可减少开关过程中的振铃与EMI干扰,适合对噪声敏感的应用;
  • 输出电容(Coss):127pF,影响关断时的电压过冲,结合Crss参数可实现较平稳的开关特性。

2.4 功率与温度范围

  • 耗散功率(Pd):1.2W(封装最大允许值),实际应用需结合PCB散热设计(如增加铜箔面积)降额使用;
  • 工作温度范围:-55℃~+150℃,覆盖工业级、户外等极端环境,可靠性更高。

三、典型应用场景

基于参数特性,SI3401AHE3-TP主要适用于以下场景:

  1. 便携式电子设备:手机、平板、TWS耳机的电源开关、负载切换电路;
  2. 电池管理系统(BMS):单节/多节锂电池的充放电控制、过流保护模块;
  3. 消费类电子:移动电源、充电器的开关管、电压转换电路;
  4. 小型电机驱动:玩具电机、小型散热风扇、微型泵的低电压驱动;
  5. 工业控制:低压信号开关、小功率继电器替代、传感器负载控制。

四、产品优势与特点

  1. 小型化封装:SOT-23封装尺寸仅约2.9×1.6×1.1mm,大幅节省PCB空间,适合高密度集成设计;
  2. 低损耗高效:47mΩ低RDS(on)减少导通损耗,提升电源转换效率;
  3. 宽栅压兼容:1.3V阈值电压支持主流3.3V/5V控制,降低系统设计复杂度;
  4. 宽温可靠性:-55~150℃宽温范围,适应户外、工业等极端环境;
  5. EMI性能优异:低Crss参数减少开关噪声,满足电磁兼容要求;
  6. 高性价比:MCC品牌工业级品质,成本低于进口同类器件,适合批量应用。

五、应用注意事项

  1. 静电防护:MOSFET对静电敏感,操作时需佩戴防静电手环、使用防静电工具;
  2. 栅极驱动:避免栅极电压超过最大允许值(如±20V),可串联10~100Ω小电阻抑制过流;
  3. 散热设计:若负载电流接近4.4A,需在PCB上增加散热铜箔或小型散热片,避免器件过热;
  4. 参数降额:建议连续电流不超过额定值的80%(即3.5A以内),延长器件寿命。

总结:SI3401AHE3-TP是一款针对低压小功率应用优化的P沟道MOSFET,兼具小型化、低损耗、宽温等优势,适用于便携式电子、BMS、消费类电子等场景,是MCC推出的高性价比功率器件选择。

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