WMSIC Electronic Components

PANJIT MMBT5551_R1_00001

ModelMMBT5551_R1_00001
PackageSOT-23(SOT-23-3)
BrandPANJIT
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
PANJIT MMBT5551_R1_00001
Type
PANJIT
Minimum package
3000

Technical parameters

Electronic Component
PANJIT
Electronic Component
MMBT5551_R1_00001
Electronic Component
1
Package
SOT-23(SOT-23-3)
Electronic Component
1 NPN
Electronic Component
Transistor(BJT)
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0263187099
Operating Temperature
55℃~+150℃
Transistor Type
NPN
Frequency(f T)
300MHz
Power Dissipation(Pd)
250mW
Electronic Component
3000
Collector Current(Ic)
600mA
Current (h FE)
80

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

MMBT5551_R1_00001 产品概述

一、概述

MMBT5551_R1_00001 是强茂(PANJIT)生产的一款高压 NPN 小信号三极管,封装为 SOT-23(SOT-23-3),单只包装。器件在高电压与高频应用中表现优良,适合需要较高集电极-射极耐压(Vceo = 160V)同时兼顾开关速度与放大性能的场景。

二、主要参数

  • 晶体管类型:NPN(BJT)
  • 集电极电流 Ic:600mA(请参考供应商脉冲/连续额定说明)
  • 集射极击穿电压 Vceo:160V
  • 功耗 Pd:250mW(片上耗散,受PCB散热影响)
  • 直流电流增益 hFE:约80(测试条件 10mA, Vce=5V)
  • 特征频率 fT:300MHz(高频性能良好)
  • 集电极截止电流 Icbo:50nA(低漏电)
  • 集射极饱和电压 VCE(sat):约200mV(典型)
  • 射基极击穿电压 Vebo:6V
  • 工作结温范围:-55°C 至 +150°C(Tj)
  • 封装:SOT-23(3引脚)
  • 数量:1只

三、封装与引脚

常见 SOT-23 引脚排列(从扁平面正面,自上向下观察): 1 = B(基极);2 = C(集电极);3 = E(射极)。为可靠设计,建议以采购方提供的器件数据手册为准。

四、典型应用场景

  • 高压开关与级联开关(例如小功率继电器驱动、电源管理开关)
  • 高频放大器与射频前端(fT = 300MHz 适合宽带小信号放大)
  • 电平移位、脉冲整形、保护电路与限流元件
  • 便携设备、仪表与工业控制中的通用高压元件替代方案

五、设计与使用建议

  • 功耗与散热:SOT-23 的片上耗散 Pd = 250mW,连续集电极电流 600mA 时会产生显著热量,设计时应保证良好 PCB 散热,必要时限制平均电流或采用脉冲工作模式。
  • 工作点选择:在放大应用中,依据 hFE(80@10mA)选择基极偏流,注意在高电流区 hFE 会下降,应留有裕量。
  • 开关损耗:VCE(sat) 典型为 200mV,开关时注意基极驱动以获得低饱和压和快恢复。
  • 电压保护:Vebo = 6V,基极-射极间耐压有限,避免在基极施加超过该值的反向电压或峰值过冲。
  • 测试与验证:推荐在目标 PCB 上做热升测试与脉冲寿命验证,确认在实际工况下的结温与长期可靠性。

六、选型注意事项

若电路长期需承受高集电极电流与较高耗散,建议选用功率封装或并联多只器件,并充分考虑 RθJA 与工作环境温度。若主要需求为低电流高压或高频增益,MMBT5551_R1_00001 在体积与性能上具有良好性价比。

七、包装与订购信息

品牌:PANJIT(强茂);封装:SOT-23;型号:MMBT5551_R1_00001;单只计数。订购时请确认生产批号与器件数据手册,以获得准确的电气特性与推荐应用电路。

如需电路实例(偏置电路、驱动电路或PCB散热布局建议),可提供目标应用与工作条件,我将给出更具体的参考方案。

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