WMSIC Electronic Components

WILLSEMI WPM1483-3/TR WPM1483

ModelWPM1483-3/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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WPM1483-3 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
WPM1483-3/TR
Electronic Component
1
Package
SOT-23
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.036g
Electronic Component
1
Electronic Component
BM0228739677
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
740mW
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
12V

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

WPM1483-3/TR 产品概述

一、产品概述

WPM1483-3/TR 为 WILLSEMI(韦尔)推出的一款 P 沟道功率 MOSFET,适用于低压电源开关与电源管理场合。器件额定漏源电压为 12V,单片封装为常用的 SOT-23,便于在空间受限的移动设备与小型电源模块中布板使用。

二、主要参数

  • 类型:P 沟道 MOSFET(单片,数量:1)
  • 漏源电压 Vdss:12 V
  • 连续漏极电流 Id:3.5 A(典型或峰值参考,请参照具体应用工况)
  • 导通电阻 RDS(on):88 mΩ @ Vgs = 1.8 V(标称条件)
  • 耗散功率 Pd:约 740 mW(SOT-23 封装热限)
  • 阈值电压 Vgs(th):约 0.85 V @ 250 μA(P 沟道器件为负极性,应按实际符号理解)
  • 总栅极电荷 Qg:14.6 nC @ Vgs = 4.5 V
  • 输入电容 Ciss:1.152 nF;输出电容 Coss:253 pF;反向传输电容 Crss:236 pF
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 封装:SOT-23

三、器件特性与优势

  • 低压耐压(12V)与较低 RDS(on):在小电流高频开关或高侧负载切换场景下能有效降低导通损耗。
  • 适配便捷的 SOT-23 封装:适合自动化贴装与体积受限的 PCB 设计。
  • 门极电荷和寄生电容处于合理范围:在常见驱动电压(如 4.5V)下 Qg≈14.6nC,有利于驱动设计与开关损耗估算。
  • 宽工作温度与工业级耐受:适合多温区应用,但需考虑封装热阻与功耗限制。

四、典型应用场景

  • 电池供电设备的高侧/低侧开关与反向保护
  • 便携式充电器、功率路径切换与电源管理子系统
  • 小功率 DC-DC 拓扑中的同步整流或开关元件
  • 信号或电源复位/断开电路

五、封装热管理与使用建议

  • SOT-23 的耗散能力有限(Pd 级别在百毫瓦量级),在连续大电流工况下需做温度与功耗估算并采取 PCB 散热(加大铜箔面积、短热路径)。
  • 选用时关注器件在实际 Vgs 下的 RDS(on) 与结温上升,必要时按厂商温度系数对 RDS(on) 做修正。
  • 栅极驱动:在 Vgs = 4.5V 条件下 Qg 数据可用于估算驱动损耗;对快速开关场合应配合合适门极电阻以抑制振铃与过冲。

六、选型注意事项

  • 确认器件的电压极性和阈值符号(P 沟道阈值为负值方向),并按电路实际 Vgs 范围设计驱动。
  • 若工作电流接近或超过器件额定 Id,应选用更大封装或并联器件以保证可靠性。
  • 参考完整数据手册以获取最大栅源电压、短时脉冲限值及封装热阻等关键参数,避免只依据典型值做最终设计。

七、结论

WPM1483-3/TR 是一款面向低压、空间受限应用的 P 沟道 MOSFET,具有较低导通电阻和中等门极电荷,适用于移动设备与小功率电源管理场景。设计时需综合考虑 SOT-23 封装的散热限制与实际驱动电压,按应用工况做热设计与器件选型。若需在高持续电流或更严格热条件下使用,建议评估更大功率等级封装或并联方案。

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