WMSIC Electronic Components

LRC LMUN5232DW1T1G

ModelLMUN5232DW1T1G
PackageSC-88
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC LMUN5232DW1T1G
Type
LRC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LMUN5232DW1T1G
Electronic Component
1
Package
SC-88
Electronic Component
2 NPN
Electronic Component
Digital Transistor
Electronic Component
0.027g
Electronic Component
1
Electronic Component
BM0264873540
Operating Temperature
55℃~+150℃
Resistor
1
Resistor
4.7kΩ
Transistor Type
NPN
Power Dissipation(Pd)
250mW
Electronic Component
Electronic Component

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

LMUN5232DW1T1G数字晶体管产品概述

一、产品基本定位与身份

LMUN5232DW1T1G是乐山无线电(LRC) 推出的超小型贴片数字晶体管,采用SC-88封装,核心定位为低功耗、小电流、宽温适配的集成化开关/放大器件。作为数字晶体管,其内置匹配电阻(输入电阻4.7kΩ、电阻比率1),可直接简化外部电路设计,减少元件数量,适配高密度、紧凑化的电子系统需求。

二、核心电性能参数解析

该器件的参数围绕“小型化、低损耗、极端环境适配”设计,关键指标如下:

  1. 耐压特性:集射极击穿电压(Vceo)达50V,满足中等电压域(如12V/24V系统)的应用;射基极击穿电压(Vebo)为6V,避免反向偏置时的击穿风险,保护内部电路。
  2. 电流与功率限制:集电极最大持续电流(Ic)100mA,耗散功率(Pd)250mW,适合驱动小负载(如LED、微型继电器)或信号放大,无需额外散热设计。
  3. 增益与导通性能:直流电流增益(hFE)在Vce=10V、Ic=5mA时稳定为15,保证信号放大的一致性;输出导通电压(VO(on))仅200mV,大幅降低导通损耗,提升电路效率。
  4. 环境适应性:工作温度范围覆盖**-55℃至+150℃**,可在工业现场、汽车电子(若符合车规)等极端温度场景下稳定工作,抗温漂能力强。
  5. 内置电阻特性:输入电阻4.7kΩ、电阻比率1,说明内部集成了匹配电阻,无需外部串联电阻即可直接驱动,简化PCB布局与物料清单。

三、SC-88封装的技术优势

SC-88是一种超小型表面贴装封装(常规尺寸约1.6mm×1.6mm×0.8mm),具备以下核心优势:

  • 高密度集成:体积仅为传统直插封装的1/5左右,可大幅节省PCB空间,适配智能手机、智能穿戴等便携设备的紧凑布局;
  • 高可靠性:贴片焊接牢固,抗振动性能优于直插封装,适合移动场景(如车载、手持设备);
  • 散热适配:虽为小封装,但Pd=250mW的额定功率可满足小电流应用的散热需求,无需额外加装散热片,进一步降低成本。

四、典型应用场景

结合参数特性,LMUN5232DW1T1G的典型应用包括:

  1. 数字逻辑电路:作为开关元件用于门电路、触发器、计数器等,内置电阻简化驱动逻辑,减少外部元件;
  2. 小负载驱动:驱动LED指示灯、小型继电器、微型电机、蜂鸣器等低功耗负载,导通损耗低;
  3. 电平转换:50V耐压可实现低电压(3.3V/5V)与中等电压域(12V/24V)的信号转换,适配跨电压系统;
  4. 工业控制模块:宽温范围适配工业现场的温度波动(如-40℃至+120℃),用于传感器信号放大、开关控制;
  5. 便携电子设备:小体积、低功耗特性适合智能手表、蓝牙耳机、便携式医疗设备的辅助电路。

五、使用与选型注意事项

为确保器件稳定工作,需注意以下要点:

  1. 额定参数限制:工作时Ic不得超过100mA,Pd不得超过250mW,避免过流过热损坏;Vce不得超过50V,Vbe反向电压不得超过6V,防止击穿;
  2. 焊接规范:回流焊温度需控制在260℃以内,焊接时间不超过10秒;手工焊接使用≤300℃烙铁,避免高温损坏封装;
  3. 静电防护:数字晶体管对静电敏感,操作时需佩戴静电手环,存储于防静电包装(如抗静电袋)中;
  4. 存储环境:存储温度范围为-40℃至+85℃,湿度≤60%,避免潮湿导致引脚氧化。

六、产品竞争力总结

LMUN5232DW1T1G在同类产品中具备明显优势:

  • 宽温覆盖:-55℃~+150℃适配工业级与部分车规级需求,抗环境能力强;
  • 集成化设计:内置匹配电阻简化电路,降低设计复杂度与物料成本;
  • 小体积高集成:SC-88封装满足便携设备的高密度布局需求;
  • 性能稳定:hFE与VO(on)参数一致性好,适合对信号精度要求高的应用。

该器件是消费电子、工业控制、汽车电子等领域小型化电路的理想选择。

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