WMSIC Electronic Components

WINSOK WSP4445

ModelWSP4445
PackageSO-8
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 WSP4445
Type
WINSOK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WINSOK
Electronic Component
WSP4445
Electronic Component
1
Package
SO-8
Electronic Component
1 P
Electronic Component
MOSFET
Electronic Component
0.132g
Electronic Component
1
Electronic Component
BM0211405145
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
4.2W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
40V
Capacitor(Ciss)
2.764nF

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

WSP4445 P沟道场效应管(MOSFET)产品概述

WSP4445是WINSOK(微硕) 推出的一款中低压大电流P沟道金属氧化物半导体场效应管(MOSFET),采用SO-8表面贴装封装,针对低导通损耗、高带载能力及工业级环境适应性需求设计,广泛适用于便携式设备、电源管理、电机驱动等领域。

一、产品核心定位与应用场景

WSP4445定位于中功率P沟道MOSFET,核心解决“低损耗+高电流+易驱动”的平衡问题,尤其适合以下场景:

  • 电池供电设备的电源路径控制(如笔记本、移动电源);
  • DC-DC同步降压转换器的低压侧同步整流;
  • 小型直流电机的驱动电路;
  • 工业控制模块的负载开关与输出级。

二、关键电气参数深度解析

WSP4445的电气参数围绕“高效、可靠、易驱动”优化,核心参数如下:

1. 电压与电流规格

  • 漏源击穿电压(Vdss):40V(P沟道典型中低压等级,满足5V/12V电源系统耐压需求);
  • 连续漏极电流(Id):16.7A(SO-8封装下的高带载能力,支撑持续10-15A负载);
  • 最大耗散功率(Pd):4.2W(封装额定功率,需结合PCB散热保证不超温)。

2. 导通特性

  • 导通电阻(RDS(on)):7mΩ@Vgs=20V(核心优势,10A电流下导通损耗仅0.07W,效率显著提升);
  • 阈值电压(Vgs(th)):1.5V(低阈值兼容3.3V/5V逻辑电平,无需额外升压驱动)。

3. 开关与电容特性

  • 输入电容(Ciss):2.764nF@Vds=20V;反向传输电容(Crss):325pF;输出电容(Coss):417pF;
  • 电容参数兼顾开关速度与噪声:Crss较小可降低电压过冲,Ciss适中适合几十kHz开关应用(如DC-DC转换器)。

4. 温度适应性

  • 工作温度范围:-55℃~+150℃(工业级温度,适应极端环境如户外设备、车载辅助系统)。

三、封装与可靠性设计

WSP4445采用SO-8表面贴装封装,具备以下设计优势:

  • 尺寸紧凑:符合小型化趋势,节省PCB空间,适配便携式设备;
  • 散热优化:引脚布局利于热量传导,高负载时需在漏极引脚附近敷铜(建议≥10mm²)提升散热;
  • 可靠性保障:符合HBM≥2kV静电防护标准,封装材料耐温性好,适应长期高温工作。

四、性能优势与应用价值

与同等级SO-8封装P沟道MOSFET相比,WSP4445核心优势:

  1. 更低导通损耗:7mΩ RDS(on)比竞品低15%-20%,延长电池续航(如移动电源);
  2. 更高带载能力:16.7A连续电流满足中功率负载需求;
  3. 更易驱动:1.5V低阈值简化低电压控制电路设计;
  4. 工业级可靠性:-55℃~+150℃温度范围,覆盖商业级未涉及的极端场景。

五、典型应用注意事项

  1. 驱动电路:Vgs建议-10V(导通)至0V(截止),驱动电阻选10Ω~100Ω(平衡开关速度与噪声);
  2. 散热设计:高负载(>10A)需增加PCB敷铜或小型散热片,保证结温≤150℃;
  3. 静电防护:生产/存储需防静电手环与包装,避免栅极损坏。

WSP4445凭借综合性能优势,成为中低压电源管理、便携式设备等领域的高性价比选择。

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