WMSIC Electronic Components

LRC S-LMBT4401WT1G

ModelS-LMBT4401WT1G
PackageSOT-323
BrandLRC
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
LRC S-LMBT4401WT1G
Type
LRC
Minimum package
3000

Technical parameters

Electronic Component
LRC
Electronic Component
S-LMBT4401WT1G
Electronic Component
1
Package
SOT-323
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.029g
Electronic Component
1
Electronic Component
BM0264354933
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
250MHz
Power Dissipation(Pd)
150mW
Electronic Component
3000
Collector Current(Ic)
600mA
Current (h FE)
20

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

S-LMBT4401WT1G NPN晶体管产品概述

S-LMBT4401WT1G是乐山无线电(LRC)推出的一款小型化表面贴装NPN晶体管,针对高密度、低功耗及宽温环境应用场景优化设计,采用SOT-323封装,具备平衡的电性能与可靠性,适用于消费电子、通信、工业控制等多领域。

一、产品基本属性与定位

该晶体管为单只封装的NPN型小信号晶体管,核心定位是小型化电路中的信号放大、开关控制及电平转换,适配对封装尺寸、功耗及温度适应性有严格要求的应用场景。品牌为国内老牌半导体厂商LRC(乐山无线电),其封装工艺与电性能一致性经过长期市场验证,可满足批量生产的稳定性需求。

二、关键电性能参数解析

1. 功率与电流承载能力

  • 集电极最大电流(Ic):600mA,可满足小功率电路的电流驱动需求(如小型继电器、LED驱动);
  • 集射极击穿电压(Vceo):40V,能应对中等电压场景的耐压要求(如12V/24V系统的信号处理);
  • 耗散功率(Pd):150mW,属于低功耗设计,无需额外散热元件,适配电池供电设备;
  • 集射极饱和电压(VCE(sat)):750mV(@500mA/50mA),低饱和压降可显著降低开关损耗,提升电路效率。

2. 频率与增益特性

  • 特征频率(fT):250MHz,支持高速信号放大(如射频前端、数字逻辑电路的高频信号处理);
  • 直流电流增益(hFE):[email protected],1.0V,在小信号(0.1mA)下仍保持稳定增益,适配微弱信号放大(如传感器输出信号)。

3. 漏电流与温度适应性

  • 集电极截止电流(Icbo):100nA,低漏电流减少静态功耗,适合电池供电的便携设备;
  • 工作温度范围:-55℃~+150℃,覆盖工业级温度要求,可在极端环境(如高温车间、低温户外)下稳定工作;
  • 射基极击穿电压(Vebo):6V,防止基极-发射极反向过压损坏,提升电路可靠性。

三、封装与可靠性设计

采用SOT-323表面贴装封装,尺寸紧凑(典型1.6mm×1.6mm×0.8mm),相比传统TO-92封装缩小70%以上,适配高密度PCB布局(如手机、智能穿戴设备的小型化设计)。封装具备以下可靠性优势:

  • 抗振动性能:表面贴装结构减少引线断裂风险,适合便携设备的跌落、振动场景;
  • 耐温性能:封装材料可承受+150℃高温,匹配工业控制、汽车电子的高温环境;
  • 一致性:LRC的封装工艺保证批量产品的电性能偏差小,降低电路调试难度与生产损耗。

四、典型应用场景

  1. 便携消费电子:手机、蓝牙耳机、智能手表的音频放大、按键电平转换,利用小封装与低功耗优势;
  2. 通信设备:射频前端的小信号放大、无线模块的控制电路,依赖250MHz特征频率处理高频信号;
  3. 工业控制:传感器信号放大、小型继电器驱动,适配-55℃~+150℃宽温范围;
  4. 汽车电子:车载辅助电路(如仪表盘背光控制、传感器信号处理),满足汽车级温度与可靠性要求;
  5. 电源管理:低压差线性稳压器(LDO)的辅助开关、电池保护电路,低饱和压降提升电源效率。

五、选型核心优势

对比同类NPN晶体管(如普通TO-92封装产品),S-LMBT4401WT1G的核心优势包括:

  • 小封装高密度:SOT-323封装适配小型化设计,可大幅提升PCB布局密度;
  • 宽温可靠性:-55℃+150℃覆盖工业/汽车级,普通产品多为-40℃+85℃;
  • 高速低耗平衡:250MHz fT兼顾高速信号处理,750mV饱和压降降低功耗;
  • 品牌质量稳定:LRC作为国内半导体行业老牌厂商,产品一致性与可靠性经过市场验证,降低选型风险。

该产品凭借平衡的电性能、紧凑封装及宽温适应性,成为小型化电路设计中NPN晶体管的高性价比选型,可满足多领域的实际应用需求。

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