WMSIC Electronic Components

LRC L8050HRLT1G

ModelL8050HRLT1G
PackageSOT-23
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 L8050HRLT1G
Type
LRC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
L8050HRLT1G
Electronic Component
1
Package
SOT-23
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.031g
Electronic Component
1
Electronic Component
BM0229959678
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Power Dissipation(Pd)
225mW
Electronic Component
Electronic Component
Electronic Component
3000
Collector Current(Ic)
1.5A

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

L8050HRLT1G 产品概述

一、产品简介

L8050HRLT1G 是乐山无线电(LRC)推出的一款小封装 NPN 双极结晶体管(BJT),采用 SOT-23 封装,针对低压、中等电流的开关与放大应用进行了优化。器件额定参数包括:集电极最大电流 Ic = 1.5 A、集—射极击穿电压 Vceo = 25 V、直流电流增益 hFE 在 100 mA、Vce=1 V 条件下约为 100,适合便携设备与工业控制中占板面积小但要求较高电流能力的场合。

二、主要规格(关键参数)

  • 晶体管类型:NPN
  • 最大集电极电流 Ic:1.5 A
  • 集—射极击穿电压 Vceo:25 V
  • 耗散功率 Pd:225 mW(在良好散热条件下器件实际散热能力可接近描述中的 300 mW,具体以厂家数据手册为准)
  • 直流电流增益 hFE:≈100(条件:Ic = 100 mA,Vce = 1 V)
  • 集电极截止电流 Icbo:150 nA
  • 饱和电压 VCE(sat):约 500 mV(典型,具体与驱动电流、工况相关)
  • 射极—基极击穿电压 Vebo:5 V
  • 工作结温范围:-55 ℃ 至 +150 ℃
  • 封装:SOT-23(3 引脚)

三、性能亮点与应用场景

  • 小体积、高集电极电流能力:SOT-23 封装配合 1.5 A 峰值能力,适用于空间受限的电源开关、LED 驱动、继电器/小电机驱动前端、功率放大级等。
  • 低漏电与稳定增益:Icbo 低(150 nA),在小电流偏置条件下基极漂移小,利于模拟前端电路与静态功耗严格受控的场景。
  • 宽温度范围适应工业级应用:-55 ℃ 至 +150 ℃ 的结温范围,可在苛刻环境下长期使用。

典型应用:

  • 低压直流开关(开关管、负载控制)
  • 小信号功率放大(音频前级、驱动级)
  • LED 驱动器、背光控制
  • 电源管理及保护电路

四、实用设计建议

  • 饱和开关设计:若作为低压开关使用,为确保在高电流下进入饱和区,建议在设计时采用“强迫 β(hFE)”法,取实际工作 Ic 下的强制 β ≈ 10–20 进行基极驱动电流计算。例如:若要驱动 Ic = 100 mA,取强制 β = 10 则需要 Ib ≈ 10 mA;若驱动电压为 5 V,则基极限流电阻 Rb ≈ (5 V − 0.7 V) / 10 mA ≈ 430 Ω。
  • 功耗与散热:SOT-23 封装的结对环境热阻 RθJA 典型值较大(约数百 ℃/W,建议按 200–300 ℃/W 估算),额定 Pd = 225 mW 时仍会产生明显结温上升。设计时应尽量减小功耗、优化 PCB 散热(加铜厚、增加散热通孔),并避免长期在额定功率极限下工作。
  • 安全区(SOA)与瞬态电流:尽管峰值 Ic 达到 1.5 A,但实际可持续电流受限于封装散热与 SOA。短时脉冲驱动可利用峰值能力,但需核算脉冲宽度、占空比与热累积。

五、封装与焊接注意

  • SOT-23 三引脚:通常标注为 E/B/C(根据数据手册确认具体引脚顺序)。安装时注意引脚方向、一致的焊盘设计可降低热阻。
  • 焊接工艺:建议采用标准回流曲线,避免过高回流峰值温度导致封装或内部应力问题。
  • PCB 布局:在集电极/发射极附近增加铜箔及散热通孔可显著降低结温,提高可靠性。

六、可靠性与选型提示

  • 在选型时,务必参考 LRC 官方数据手册确认完整电气特性曲线(包括 VCE(sat) 与 hFE 随电流/温度的变化、脉冲能力与典型 RθJA)。对关键应用建议做过温和长期老化测试。
  • 若应用要求长期大电流或更低 VCE(sat),应考虑更大封装或低 VCE(sat) 规格的功率晶体管,或采用并联/降额方式提高可靠性。

如需基于具体电路(驱动电压、工作电流、占空比)计算基极电阻、散热方案或替代元件推荐,可提供电路参数,我将给出更精确的工程建议。

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