WMSIC Electronic Components

ElecSuper BSS138BKW

ModelBSS138BKW
PackageSOT-323
BrandElec Super
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
Elec Super BSS138BKW
Type
ELECSUPER
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
BSS138BKW
Electronic Component
1
Package
SOT-323
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.04g
Electronic Component
1
Electronic Component
BM0265197984
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
236mW
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
60V

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

ElecSuper(静芯微)BSS138BKW N沟道MOSFET产品概述

BSS138BKW是静芯微(ElecSuper)针对低压小功率场景优化设计的N沟道增强型MOSFET,采用超小型SOT-323封装,以“低功耗、高集成度、宽温适配”为核心特性,广泛应用于便携电子、信号调理、电源管理等领域,是替代传统小功率开关管的高性价比选择。

一、产品核心定位与应用场景

BSS138BKW的参数设计精准匹配低压小负载驱动与信号开关需求,典型应用场景包括:

  1. 便携电子设备:智能手机、智能穿戴的电源路径切换(如电池与充电模块、外设通断),小封装适配高密度PCB布局;
  2. 信号调理电路:模拟开关(音频选通、传感器信号选通)、电平转换(低阈值适配3.3V/5V系统);
  3. 小功率负载驱动:微型LED指示、纽扣电机控制、低功耗继电器驱动,连续360mA电流满足多数小负载;
  4. 电源管理模块:LDO辅助开关、备用电源切换(电池与超级电容切换)。

二、关键电气参数深度解析

BSS138BKW的参数兼顾性能与功耗,核心指标适配低压系统:

  1. 电压与电流特性

    • 漏源击穿电压(Vdss)60V,高于同类产品50V上限,提升抗过压能力;
    • 连续漏极电流(Id)360mA,支持持续小负载,峰值能力满足瞬时需求;
    • 阈值电压(Vgs(th))1V@250uA,3.3V/5V MCU GPIO可直接驱动,无需额外升压,简化设计。
  2. 导通与功耗表现

    • 导通电阻(RDS(on))1.5Ω@10V,同类SOT-323封装中处于低位,导通损耗极小(360mA负载时压降仅0.54V);
    • 最大耗散功率(Pd)236mW,适配封装散热,满足持续工作热管理。
  3. 电容与开关特性

    • 输入电容(Ciss)25pF、反向传输电容(Crss)2.2pF,低电容降低开关充放电损耗,提升速度;
    • 栅极电荷量(Qg)[email protected],驱动能量小,进一步降低系统功耗,适合电池供电场景。

三、封装与可靠性设计特点

  1. 小型化SOT-323封装
    封装尺寸紧凑(典型2.9×2.4×1.1mm),占板面积仅约7mm²,适配高密度PCB,助力设备小型化。

  2. 宽温工作范围
    工作温度-55℃~+150℃,符合工业级宽温要求,可稳定工作于极端环境(户外便携、工业控制)。

  3. 可靠性设计
    内置静电防护(符合行业标准),抗常见静电冲击;封装工艺成熟,长期工作稳定性高,降低维护成本。

四、典型应用电路说明

以3.3V系统电源路径切换为例:

  • 栅极接MCU GPIO(输出3.3V高电平),源极接电池正极,漏极接外设供电端;
  • 高电平时MOSFET导通,电池向外设供电;低电平时关断,切断电源。
    优势:低阈值1V确保GPIO完全驱动,1.5Ω导通电阻减少压降,SOT-323封装节省空间。

总结

BSS138BKW作为静芯微的小型化MOSFET,以“低阈值驱动、低导通损耗、宽温适配”为核心竞争力,精准匹配低压小功率场景。其高集成度封装结合稳定性能,是便携电子、信号调理、电源管理的理想选择,可简化设计、降低功耗与成本。

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