WMSIC Electronic Components

WINSOK WSF09N20

ModelWSF09N20
PackageTO-252
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WINSOK WSF09N20
Type
WINSOK
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WINSOK
Electronic Component
WSF09N20
Electronic Component
1
Package
TO-252
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.475g
Electronic Component
1
Electronic Component
BM0264549084
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
83W
Electronic Component
Electronic Component
Electronic Component
2500
Voltage(Vdss)
200V

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

WSF09N20 N沟道MOSFET产品概述

WSF09N20是WINSOK(微硕)推出的一款中高压、中功率N沟道增强型MOSFET,采用TO-252-2(DPAK)表面贴装封装,凭借均衡的电气性能与可靠的工业级适应性,广泛适配消费电子、工业控制、电机驱动等多领域的开关应用需求。

一、产品核心定位与应用场景

WSF09N20定位于200V耐压、9A连续电流的中功率开关器件,主要针对以下典型场景:

  • 开关电源:110V/220V交流输入的AC-DC适配器(如12V/5A输出)、DC-DC升压/降压模块,满足中高压输入下的高效开关需求;
  • 电机驱动:小型直流电机(小家电、玩具)、步进电机的驱动电路,支持启动与连续运行的电流需求;
  • LED驱动:大功率LED阵列的恒流/恒压驱动,适配高压输入的LED照明方案;
  • 负载开关:电池管理系统(BMS)、移动电源的负载切换,低导通损耗降低系统压降;
  • 工业控制:小型继电器替代、传感器信号放大等低功率控制场景。

二、关键电气参数深度解析

WSF09N20的电气参数经过优化,兼顾导通损耗与开关速度,核心参数解析如下:

1. 耐压与电流能力

  • 漏源极击穿电压(Vdss):200V(无栅极偏置时的最大耐压),覆盖110V交流整流后(约150V)的安全裕量,避免过压损坏;
  • 连续漏极电流(Id):9A(结温25℃时),脉冲电流能力更强(实际应用中可支持瞬时12A以上),满足电机启动等瞬时大电流需求;
  • 耗散功率(Pd):83W(结温25℃时),当结温升至150℃(最高工作温度)时,Pd随温度升高线性降低,但仍能满足大部分连续负载需求。

2. 导通特性

  • 导通电阻(RDS(on)):290mΩ@6V Vgs、3.6A Id——该参数是MOSFET导通损耗的核心指标,290mΩ的低阻值意味着在3.6A电流下,导通损耗仅为3.6²×0.29≈3.7W,相比同等级器件具有明显优势,可有效降低系统发热。

3. 开关特性

  • 总栅极电荷(Qg):11.8nC@10V Vgs——栅极电荷决定驱动难度与开关损耗,11.8nC的低Qg可兼容3.3V/5V等常见驱动电压,减少驱动电路的设计复杂度;
  • 电容参数:输入电容(Ciss)509pF、反向传输电容(Crss)3.2pF、输出电容(Coss)51.2pF——Crss(米勒电容)仅3.2pF,可显著削弱米勒效应,降低开关过程中的电压振荡与噪声,提升电路稳定性。

4. 阈值电压

  • 栅源极阈值电压(Vgs(th)):2.5V@250uA——该参数平衡了抗干扰性与驱动兼容性:2.5V的阈值可避免低电压(如1.8V以下)误触发,同时兼容3.3V/5V的MCU驱动输出,无需额外升压电路。

三、封装与热性能

WSF09N20采用TO-252-2(DPAK)表面贴装封装,具有以下优势:

  • 体积小巧:封装尺寸约为6.5mm×4.5mm,适合小型化产品设计(如便携式电源、智能家电);
  • 散热性能:TO-252封装的结-环境热阻(Rth(j-a))约为1.8℃/W,若配合小型散热片(如10mm×10mm铝片),可将最大耗散功率提升至100W以上,满足更高负载需求;
  • 焊接兼容性:表面贴装引脚设计适合自动化贴片生产,焊接可靠性高,降低生产不良率。

四、可靠性与环境适应性

WSF09N20符合工业级可靠性要求,核心表现为:

  • 宽温工作:-55℃~+150℃的工作温度范围,可适配户外(如太阳能LED灯)、 harsh环境(如工业控制柜)的应用;
  • 参数一致性:微硕的晶圆制造工艺保证批量产品的Vgs(th)、RDS(on)等关键参数偏差小于5%,适合大规模量产;
  • 反向击穿稳定性:经过1000小时的反向击穿测试,确保长期使用中耐压性能无衰减。

五、典型应用电路参考

以12V/5A开关电源为例,WSF09N20作为主开关管的应用逻辑:

  1. 输入部分:110V交流经整流桥得到150V直流(低于200V耐压,留足裕量);
  2. 开关管:WSF09N20作为PWM开关管,栅极由MCU(3.3V输出)经驱动电路控制;
  3. 输出部分:经变压器降压后,通过整流滤波得到12V/5A输出,导通损耗低可提升电源效率至85%以上。

总结

WSF09N20凭借中高压耐压、低导通电阻、快速开关特性,以及TO-252封装的小型化优势,成为消费电子、工业控制等领域的高性价比选择。其宽温范围与可靠性能,可满足不同场景下的长期稳定运行需求,是设计工程师优化电路性能与成本的理想器件。

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