WMSIC Electronic Components

FOSAN FS3407

ModelFS3407
PackageSOT-23-3L
BrandFOSAN
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+

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Technical data

Product details

19 specifications

Core information

Product name
FOSAN FS3407
Type
FOSAN
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FOSAN
Electronic Component
FS3407
Electronic Component
1
Package
SOT-23-3L
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.038g
Electronic Component
1
Electronic Component
BM0264886292
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.2W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
30V

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

FS3407 P沟道场效应管(MOSFET)产品概述

FS3407是FOSAN(富信)半导体推出的一款高性能P沟道增强型金属氧化物半导体场效应管(MOSFET),采用SOT-23-3L小型贴片封装,专为低电压、小功率场景下的电源管理、负载开关等应用设计,具备低导通电阻、易驱动、宽温适应等核心优势。

一、产品核心定位与基本属性

FS3407属于低压P沟道MOSFET,核心定位为便携电子、小型电源模块等场景的“小功率高效开关器件”:

  • 品牌:FOSAN(富信)
  • 类型:P沟道增强型MOSFET
  • 封装:SOT-23-3L(小型3引脚贴片封装,尺寸约2.9×1.6×1.1mm)
  • 核心特点:低导通损耗、低阈值电压、宽温度范围、高密度PCB适配

二、关键电气参数详解

FS3407的电气参数经过优化,平衡了导通性能、开关速度与功率耐受能力,核心参数如下:

2.1 电压与阈值特性

  • 漏源击穿电压(VDSS):30V(最大额定值,适配5V、12V等主流电源轨,确保低电压系统稳定);
  • 栅源阈值电压(VGS(th)):1.5V(典型值)—— 低阈值可直接被3.3V/5V MCU驱动,无需额外栅极电路,简化系统设计;
  • 栅源最大电压(VGS(max)):通常为±20V(参考官方 datasheet),需避免过压损坏。

2.2 电流与功率特性

  • 连续漏极电流(ID):4.2A(Ta=25℃额定值);脉冲漏极电流(IDP):4.5A(短时间峰值,适配突发负载);
  • 导通电阻(RDS(on)):53mΩ(VGS=4.5V典型值)—— 低导通电阻显著降低导通损耗(P=I²×RDS(on)),提升系统效率;
  • 耗散功率(PD):1.2W(Ta=25℃),Ta=85℃时可支持1.45W输出,需结合散热设计调整。

2.3 电容与开关特性

  • 输入电容(CISS):572pF;反向传输电容(CRSS):82pF;输出电容(COSS):70pF—— 适配100kHz以下中等开关频率,兼顾开关损耗与效率;
  • 栅极电荷量(Qg):12nC(典型值)—— 低栅极电荷减少开关能量损耗,提升动态响应。

2.4 温度与可靠性

  • 工作温度范围:-55℃~+150℃(结温)—— 宽温适配工业级、车载级等恶劣环境;
  • 可靠性:符合RoHS标准,ESD(HBM)等级≥2kV,降低生产损坏风险。

三、封装与散热设计

FS3407采用SOT-23-3L封装,具备以下特点:

  • 尺寸优势:超小体积节省PCB空间,适配便携设备(智能手机、智能手环)高密度布局;
  • 散热注意:封装体积小,散热依赖PCB铜箔,需在漏极焊盘下增加铜箔(建议≥10mm²),或通过过孔连接内层铜箔,避免结温过高。

四、典型应用场景

FS3407广泛应用于以下场景:

  1. 便携电子:智能手机、智能穿戴的电池负载开关;
  2. 电源管理:DC-DC转换模块高侧开关、线性稳压器负载开关;
  3. LED驱动:小功率LED(指示灯、背光)调光开关;
  4. 小型电机:低电压小电流电机(玩具电机、小型风扇)驱动;
  5. 工业控制:传感器模块电源通断控制(适配宽温)。

五、应用注意事项

  • 栅极防护:串联10~100Ω电阻限流,生产需静电防护(防静电手环、离子风扇);
  • 电压限制:VGS≤±20V,VDSS≤30V;
  • 负载匹配:连续负载≤4.2A(Ta=25℃),脉冲负载≤4.5A;
  • 散热设计:严格按PCB铜箔面积要求布局,避免集中发热。

FS3407凭借高性价比、低损耗等优势,是便携电子、电源管理领域的理想选型。

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