WMSIC Electronic Components

WILLSEMI WNM3008-3/TR WNM3008

ModelWNM3008-3/TR
PackageSOT-23
BrandWILLSEMI
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
WILLSEMI WNM3008-3 / TR
Type
WILLSEMI
Minimum package
3000

Technical parameters

Electronic Component
WILLSEMI
Electronic Component
WNM3008-3/TR
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0265022834
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
800mW
Electronic Component
3000
Voltage(Vdss)
30V
Capacitor(Ciss)
265pF
Output Capacitor(Coss)
38pF

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

WNM3008-3/TR N沟道MOSFET产品概述

一、产品基本定位与应用场景

WNM3008-3/TR是韦尔半导体(WILLSEMI)推出的低压N沟道增强型MOSFET,采用SOT-23小型表面贴装封装,核心面向5V/12V低压小功率电路的开关控制需求,覆盖便携电子、电源管理、电池保护等多个细分场景。其参数设计匹配“小体积、高效率、宽温可靠”的低压应用痛点,是替代传统晶体管或同类MOSFET的高性价比选择。

二、核心电气参数深度解析

1. 漏源耐压与电流能力

最大漏源电压(Vdss)为30V,满足多数低压系统(如5V、12V)的耐压需求;连续漏极电流(Id)可达3.1A(需结合散热条件),峰值电流能力进一步提升,可覆盖微型电机、LED阵列等小功率负载的瞬时需求。

2. 导通损耗控制

导通电阻(RDS(on))低至62mΩ(Vgs=10V时),在同电压等级、同封装MOSFET中处于优势水平。低导通电阻直接降低导通状态下的功率损耗(P=I²×R),尤其适合持续负载场景(如电源开关),减少发热并提升系统效率。

3. 开关特性与驱动兼容性

  • 栅极总电荷量(Qg)仅7.75nC(Vgs=10V),栅极驱动所需能量少,开关损耗低;
  • 输入电容(Ciss=265pF)、反向传输电容(Crss=33pF)平衡了开关速度与电磁干扰(EMI),适合100kHz以内的开关频率应用(如DC-DC同步整流);
  • 阈值电压(Vgs(th)=2V,Id=250uA,25℃)处于3.3V/5V常见驱动电压范围内,无需额外电平转换,可直接由单片机、MCU控制,简化系统设计。

4. 功耗与温度范围

最大耗散功率(Pd)为800mW,结合SOT-23封装的散热能力,可满足小功率连续工作需求;工作温度范围(-55℃~+150℃)覆盖工业级与消费级设备的环境要求,适应户外或恶劣工况。

三、封装与散热特性

WNM3008-3/TR采用SOT-23封装,尺寸约2.9mm×1.6mm×1.1mm,属于小型表面贴装封装,适合高密度PCB布局(如便携设备紧凑主板)。3脚引脚(漏极D、源极S、栅极G)焊接工艺成熟,兼容回流焊、波峰焊等常规工艺。

散热方面,通过PCB源极焊盘向主板散热,800mW的Pd值在该封装下表现可靠;若需更高功率应用,可通过增加源极焊盘面积或辅助散热片进一步提升散热能力。

四、典型应用场景示例

  1. 便携电子设备:智能手机、智能手环、蓝牙耳机的电源路径开关(电池到主板通断控制),利用小体积节省空间,3.1A电流覆盖负载需求;
  2. 低压电源管理:5V/12V系统的负载开关(如USB过流保护)、DC-DC转换的同步整流管,低损耗提升电源效率(可达90%以上);
  3. 电池保护电路:锂电池(3.7V/4.2V)的过流/过压保护开关,30V耐压满足保护要求,2V阈值兼容电池管理芯片(BMS);
  4. 小型电机驱动:玩具电机、微型水泵的H桥驱动(配合同型号MOSFET组成半桥),3.1A电流覆盖多数微型电机;
  5. LED驱动:小功率LED阵列(手机闪光灯、指示灯)的调光开关,通过PWM控制通断实现亮度调节,低损耗减少LED发热。

五、使用注意事项

  1. 静电防护:栅极对静电敏感,存储、焊接需采用防静电包装与操作(如防静电手环、工作台),避免栅极击穿;
  2. 驱动电压限制:避免Vgs超过最大允许值(通常±20V,参考 datasheet),防止栅极氧化层损坏;
  3. 散热设计:若电流接近3.1A或持续工作,需增加源极焊盘面积(铜箔填充),必要时加小型散热片,确保结温≤150℃;
  4. 焊接规范:回流焊峰值温度≤260℃,时间≤10秒,避免过热损坏器件。

WNM3008-3/TR凭借“低压、小体积、高效率”的核心优势,成为便携电子、电源管理等领域的实用型MOSFET选择,适合对成本与性能平衡要求较高的应用场景。

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