WMSIC Electronic Components

VBsemi BSS138TA-VB BSS138TA

ModelBSS138TA-VB
PackageSOT-23(TO-236)
BrandVBSEMI
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
VBsemi BSS138TA-VB
Type
VBSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
VBSEMI
Electronic Component
BSS138TA-VB
Electronic Component
1
Package
SOT-23(TO-236)
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.08g
Electronic Component
1
Electronic Component
BM0265598714
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
300mW
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.

BSS138TA-VB N沟道MOS场效应管产品概述

一、产品基本概况

VBsemi(微碧半导体)推出的BSS138TA-VB是一款N沟道增强型MOS场效应管,采用SOT-23(TO-236)贴片封装,为单管配置。该器件针对低功耗、小信号开关及放大场景优化,体积紧凑、性能稳定,是便携设备、单片机控制电路等领域的常用选型。

二、核心电性能参数解析

BSS138TA-VB的关键参数贴合低压小功率应用需求,核心特性如下:

  1. 电压与电流能力:漏源击穿电压(Vdss)达60V,可覆盖5V/12V等主流低压系统的耐压要求;连续漏极电流(Id)为250mA,适配LED、小继电器线圈等小负载驱动。
  2. 导通电阻(RDS(on)):在栅源电压(Vgs)=10V时,导通电阻仅2.8Ω;即使在低栅压(4.5V,接近3.3V单片机IO口电压)下,RDS(on)也仅3.1Ω——远低于同类器件平均水平,能有效降低导通功耗、减少发热。
  3. 栅极特性:阈值电压(Vgs(th))=2.5V(漏极电流Id=250μA时),确保低栅压下可靠导通;栅极电荷量(Qg)=400pC(Vgs=4.5V时),低Qg值意味着开关速度快,适合高频小信号切换。
  4. 电容参数:输入电容(Ciss)=25pF、反向传输电容(Crss)=2pF、输出电容(Coss)=5pF,低电容值减少米勒效应,提升开关线性度,避免信号失真。
  5. 功耗与温度:最大耗散功率(Pd)=300mW,结合宽工作温度范围(-55℃~+150℃),可在极端环境下稳定工作,满足工业级应用要求。

三、封装特点与工艺兼容性

BSS138TA-VB采用SOT-23贴片封装,尺寸约1.6mm×2.9mm×1.1mm,具有三大优势:

  • 体积紧凑:适配智能手环、蓝牙耳机、IoT模块等对空间要求严格的便携设备;
  • 贴片工艺:支持自动化SMT生产线,降低生产难度与成本;
  • 引脚兼容:标准引脚定义(G=栅极、D=漏极、S=源极),与同类器件可直接替换,便于选型迭代。

四、典型应用场景

基于低功耗、小封装、快速开关的特性,BSS138TA-VB广泛应用于:

  1. 单片机小负载开关:3.3V/5V单片机IO口直接驱动LED、蜂鸣器、小型继电器线圈,无需额外驱动电路;
  2. 电池设备电源切换:移动电源输入/输出切换、低功耗设备休眠唤醒控制;
  3. 音频小信号放大:低功率音频电路中作为放大管,失真小、功耗低;
  4. 保护电路:过流/过压保护中的开关元件,响应速度快;
  5. 工业小信号控制:传感器信号开关、小型执行器驱动等场景。

五、可靠性与选型优势

BSS138TA-VB的可靠性与性价比突出:

  • 宽温稳定:覆盖工业级温度范围(-55℃~+150℃),适应高温、低温环境;
  • 低功耗适配:3.1Ω@4.5V的导通电阻大幅降低功耗,延长设备续航;
  • 兼容性强:低栅压导通特性适配主流单片机IO口,无需电平转换;
  • 成本效益:微碧半导体的高性价比,适合批量应用。

综上,BSS138TA-VB是一款兼顾性能、体积与成本的N沟道MOS管,可满足多数低压小功率开关/放大场景的需求。

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