WMSIC Electronic Components

WINSOK WSD40120DN56G

ModelWSD40120DN56G
PackageDFN5x6-8
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WINSOK WSD40120DN56G
Type
WINSOK
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WINSOK
Electronic Component
WSD40120DN56G
Electronic Component
1
Package
DFN5x6-8
Electronic Component
1 N
Electronic Component
MOSFET
Electronic Component
0.162g
Electronic Component
1
Electronic Component
BM0264549074
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
125W
Electronic Component
Electronic Component
Electronic Component
5000
Voltage(Vdss)
40V
Capacitor(Ciss)
3.972nF

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

WSD40120DN56G N沟道MOSFET产品概述

一、产品定位与基础属性

WSD40120DN56G是WINSOK(微硕) 推出的中低压大电流N沟道增强型MOSFET,核心定位为工业级、汽车电子及电源领域的高可靠性功率开关器件。该器件采用DFN5x6-8紧凑封装,单N沟道结构,覆盖40V漏源电压、120A连续漏极电流的功率范围,适配12V/24V/36V等主流中低压系统,是传统功率器件(如晶闸管、部分IGBT)的高效替代方案。

二、核心电气参数深度解析

该器件的参数设计兼顾效率、可靠性与驱动兼容性,关键参数解析如下:

1. 电压与电流额定值

  • 漏源电压(Vdss=40V):留足10%-20%的裕量(覆盖36V系统峰值),避免过压击穿,适合多串锂电池(10串Li-ion≈37V)、24V工业总线等场景;
  • 连续漏极电流(Id=120A):为25℃环境下的连续工作电流,若系统散热条件优化(如PCB铜箔加厚),可支撑更高瞬时电流,满足大负载持续运行需求。

2. 导通与损耗特性

  • 导通电阻(RDS(on)=1.8mΩ@10V/20A):同电压等级(40V)产品中的低阻水平,直接决定导通损耗(公式:(P_{loss}=I^2 \cdot R_{DS(on)}))。以20A负载为例,导通损耗仅(20^2 \times 1.8 \times 10^{-3}=0.72W),比同类产品低10%以上,显著提升系统效率;
  • 耗散功率(Pd=125W):在150℃额定结温下的最大允许功耗,结合封装热阻(DFN5x6-8典型热阻(R_{th(j-a)}≈1.2℃/W)),可支撑持续大电流运行,无需额外散热器(常规负载下)。

3. 驱动与开关特性

  • 阈值电压(Vgs(th)=1.6V):低阈值设计,兼容3.3V/5V逻辑电平(MCU、DSP直接驱动),无需电平转换电路,简化系统设计;
  • 栅极电荷量(Qg=45nC@10V):平衡开关速度与驱动难度,适合100kHz-500kHz的高频应用(如DC-DC转换器),避免Qg过高导致开关损耗过大;
  • 电容参数(Ciss=3.972nF,Crss=82pF):Ciss(输入电容)影响开关时间,Crss(反向传输电容)抑制米勒效应,参数合理,降低开关振荡风险。

4. 温度适应性

  • 工作温度(-55℃~+150℃):符合工业级温度标准,可适应高寒、高温环境(如汽车发动机舱、户外电源),可靠性达汽车级要求。

三、封装与热性能优势

采用DFN5x6-8封装(5mm×6mm尺寸,8引脚),具备三大核心优势:

  1. 低寄生参数:漏极(D)、源极(S)各4个引脚,降低寄生电感(<1nH)与电阻,提升高频稳定性;
  2. 高效散热:引脚直接连接PCB铜箔,热阻比传统TO-252封装低30%,可通过PCB铜箔面积优化进一步降低热阻;
  3. 紧凑设计:体积仅为传统TO-220封装的1/5,适合高密度PCB(如笔记本电源、小型逆变器)。

四、典型应用场景

WSD40120DN56G的参数匹配性使其广泛应用于以下场景:

  1. 中低压DC-DC转换器:24V转12V/5V的降压模块(输出20A-60A)、车载电源适配器;
  2. 电机驱动:小型伺服电机、BLDC电机的H桥驱动(12V/24V系统);
  3. 电池管理系统(BMS):多串锂电池的充放电开关、均衡电路;
  4. 工业控制:PLC输出模块、继电器替代电路(大电流负载切换);
  5. 新能源:电动自行车、小型储能系统的功率开关。

五、总结

WSD40120DN56G凭借低导通损耗、宽温可靠性、易驱动性与紧凑封装,成为中低压大电流场景的高性价比选择。其参数设计平衡了效率与成本,适配工业、汽车电子、电源等多领域需求,是系统设计中替代传统功率器件的理想方案。

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