WMSIC Electronic Components

ST MMBT8050D(1.5A)-Y1 transistor MMBT8050D

ModelMMBT8050D(1.5A)-Y1
PackageSOT-23
BrandST
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
ST MMBT8050D(1.5A)-Y1
Type
ST
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST
Electronic Component
MMBT8050D(1.5A)-Y1
Electronic Component
1
Package
SOT-23
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0228062165
Transistor Type
NPN
Frequency(f T)
120MHz
Power Dissipation(Pd)
200mW
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.

MMBT8050D(1.5A)-Y1 产品概述

一、产品简介

MMBT8050D(1.5A)-Y1 为一款小型功率 NPN 双极结晶体管,由 ST(先科)出品,采用 SOT-23 封装,针对便携和空间受限的电子设备而优化。该器件在保证较高电流驱动能力的同时,适合用于开关与小信号放大场合,是消费类电路与嵌入式系统常用的通用型晶体管。

二、主要特点

  • NPN 小功率晶体管,适合开关与放大应用;
  • 直流电流增益 hFE = 160(测量条件:Ic = 100 mA, Vce = 1 V),增益稳定;
  • 额定集电极电流 Ic = 1.5 A,满足中等电流驱动需求;
  • 集—射极击穿电压 VCEo = 25 V,适配低压系统;
  • 特征频率 fT = 120 MHz,具备良好的高频响应能力;
  • 低漏电流 Icbo = 100 nA,静态损耗小;
  • 集—射极饱和电压 VCE(sat) ≈ 500 mV(测量条件:Ic = 800 mA 与 Ib = 80 mA);
  • 最大耗散功率 Pd = 200 mW(受封装与环境散热条件影响)。

三、电气参数要点

  • 直流电流增益(hFE):160 @ Ic=100 mA, Vce=1 V
  • 集电极截止电流(Icbo):100 nA(典型小漏电)
  • 集—射极击穿电压(VCEo):25 V
  • 特征频率(fT):120 MHz
  • 允许集电极电流(Ic):1.5 A(瞬时/脉冲条件下需关注热极限)
  • 耗散功率(Pd):200 mW(SOT-23 封装,散热受限)
  • 饱和电压(VCE(sat)):约 500 mV @ Ic=800 mA, Ib=80 mA

四、典型应用场景

  • 低压电源开关、负载驱动(继电器、继电器驱动电路需注意电流与散热);
  • 中低功率电机驱动的前置开关;
  • 音频前级与小信号放大(利用其较高的 hFE 与 fT);
  • 通用开关电路、缓冲/电平移位电路。

五、封装与安装注意

  • 封装:SOT-23(紧凑型,适合高密度 PCB 布局);
  • SOT-23 封装散热能力有限,长期在高 Ic 条件下工作时需考虑降额设计或外部散热措施;
  • 焊接建议遵循常见的无铅回流工艺温度曲线,避免长时间高温暴露;
  • 推荐在 PCB 设计中为此封装留出适当焊盘,便于热量传导并保证可靠焊点。

六、热与可靠性建议

  • 在接近最大 Ic 或 Pd 条件下运行时,应评估结温上升对 hFE 与 VCE(sat) 的影响;
  • 对于连续大电流应用,建议限制平均电流并采用并联或更大封装器件以提高可靠性;
  • 储存与使用时避免静电冲击,ESD 防护等级不高的器件应配合防静电措施。

七、订购与替代建议

  • 品牌:ST(先科),型号:MMBT8050D(1.5A)-Y1,封装 SOT-23;
  • 在设计或采购阶段,可以规格为导向寻找同类替代件,注意比较 VCEo、Ic、hFE、Pd 与封装散热差异,确保替代件能满足系统的电流与热管理需求。

如需针对具体电路(例如开关驱动或放大级)提供偏置电阻计算、仿真建议或 PCB 布局指导,我可以根据工作电压与负载条件给出详细设计参数。

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