WMSIC Electronic Components

WINSOK WST3401A

ModelWST3401A
PackageSOT-23-3L
BrandWINSOK
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
WINSOK WST3401A
Type
WINSOK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WINSOK
Electronic Component
WST3401A
Electronic Component
1
Package
SOT-23-3L
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.039g
Electronic Component
1
Electronic Component
BM0264549071
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1W
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.

WST3401A P沟道场效应管(MOSFET)产品概述

一、基本属性与封装信息

WST3401A是WINSOK(微硕) 推出的一款P沟道增强型MOSFET,专为低电压、小功率场景优化设计。其采用SOT-23-3L 封装(3引脚超小封装),体积仅约2.9×2.5×1.3mm(典型值),具备高密度布局优势,可轻松集成到手机、蓝牙耳机等紧凑便携设备中。作为P沟道器件,它无需额外负栅极驱动,仅需正栅源电压控制导通,适配主流3.3V/5V低电压系统,是电源管理领域的常用基础器件。

二、核心电参数详细解析

WST3401A的参数平衡了性能与小功率需求,关键参数意义如下:

  • 电压参数:
    漏源击穿电压(Vdss)=30V(正常工作时Vds不得超过30V,安全裕量充足);
    阈值电压(Vgs(th))=1.2V(栅源电压≥1.2V时器件导通,兼容3.3V MCU的IO口直接驱动,无需额外电路)。
  • 电流与功率:
    连续漏极电流(Id)=5A(持续工作的最大漏极电流,需配合散热);
    导通电阻(RDS(on))=57mΩ@10V(栅源电压10V时的导通损耗低,可减少发热与能量浪费);
    最大耗散功率(Pd)=1W(满负荷工作时需辅助散热,避免过热)。
  • 电容与开关特性:
    栅极电荷量(Qg)[email protected](低Qg意味着开关速度快,适合高频切换场景);
    输入电容(Ciss=816pF)、反向传输电容(Crss=112pF)、输出电容(Coss=140pF)共同影响开关延迟,适配低至中频率电源转换需求。
  • 温度范围:
    工作温度=-55℃~+150℃(覆盖工业级、车载级极端环境,可靠性高)。

三、关键特性与应用优势

WST3401A针对小功率场景痛点,具备以下核心优势:

  1. 低导通损耗:57mΩ导通电阻在SOT-23封装中表现优异,可提升便携设备电池续航(如蓝牙耳机电源转换效率);
  2. 低电压驱动兼容:1.2V阈值电压无需额外驱动电路,直接适配3.3V/5V系统,简化电路设计;
  3. 快速开关响应:9nC栅极电荷量让开关速度快,适合DC-DC转换器、负载开关等高频场景,减少开关损耗;
  4. 宽温适应性:-55℃~+150℃可稳定工作在车载高温(如仪表盘)或户外低温(如便携测温仪)环境;
  5. 小封装高密度布局:SOT-23-3L体积小,可在有限PCB空间内集成多个器件,适配手机、可穿戴设备的紧凑设计。

四、典型应用场景

结合参数特性,WST3401A的典型应用包括:

  1. 便携电子设备:手机电池保护电路、蓝牙耳机充电开关、可穿戴设备负载通断控制;
  2. DC-DC转换器:低电压转换(如3.3V转5V、5V转3.3V)的开关管,提升转换效率;
  3. 小功率负载开关:LED指示灯驱动、传感器供电控制、小型振动马达通断;
  4. 工业控制:低电压控制模块的开关元件,适配工业环境宽温要求;
  5. 车载电子:仪表盘背光控制、胎压监测传感器供电、USB充电接口开关。

五、使用注意事项

为确保稳定工作,需注意以下几点:

  1. 电压限制:Vds≤30V,Vgs控制在-20V~+20V(避免过压击穿);
  2. 散热要求:Id接近5A时,需在PCB漏极引脚附近铺大面积铜箔辅助散热;
  3. 驱动优化:推荐Vgs=4.5V~10V(获得最佳导通性能),避免仅用1.2V阈值电压长时间工作;
  4. 静电防护:MOSFET易受静电损坏,操作时需佩戴防静电手环,存储于防静电袋;
  5. 脉冲电流:脉冲漏极电流(Idp)参考 datasheet(如20A/100μs),避免长时间重复脉冲过热。

WST3401A凭借小封装、低损耗、宽温适配等特性,成为便携电子、电源管理领域的高性价比选择,可满足多数低电压小功率场景的需求。

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