WMSIC Electronic Components

SHIKUES PXT8550

ModelPXT8550
PackageSOT-89
BrandSHIKUES
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+

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Technical data

Product details

19 specifications

Core information

Product name
SHIKUES PXT8550
Type
SHIKUES
Minimum package
1000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SHIKUES
Electronic Component
PXT8550
Electronic Component
1
Package
SOT-89
Electronic Component
1 PNP
Electronic Component
Transistor(BJT)
Electronic Component
0.13g
Electronic Component
1
Electronic Component
BM0265377756
Operating Temperature
55℃~+150℃
Transistor Type
PNP
Frequency(f T)
120MHz
Power Dissipation(Pd)
625mW
Electronic Component
Electronic Component
Electronic Component
1000

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

PXT8550 PNP型三极管产品概述

一、产品核心定位与应用场景

PXT8550是SHIKUES(时科)推出的工业级中小功率PNP双极型晶体管(BJT),针对低压中电流场景优化,兼顾开关效率与线性放大能力。核心定位为通用型驱动/放大器件,可覆盖消费电子、工业控制、通信设备等领域——例如5V/12V电源负载开关、音频小信号放大、传感器信号调理、低压稳压辅助电路等。相比同类通用PNP管,其低饱和电压、宽温度范围的特性,更适合严苛环境下的稳定应用。

二、关键电气参数详解

1. 功率与电流承载能力

  • 最大集电极电流(Ic):1.5A(峰值),可满足小型继电器、LED阵列(单路≤1A)等负载驱动;
  • 最大耗散功率(Pd):625mW(25℃环境下),实际应用需按温度降额(如100℃环境下Pd降至约300mW),避免过热失效。

2. 电压特性与开关性能

  • 集射极击穿电压(Vceo):25V,覆盖常见低压电源(5V/12V/24V),无需额外高压防护;
  • 集射极饱和电压(VCE(sat)):500mV(典型值,Ic=500mA),开关状态下损耗仅0.25W,远低于同类产品700mV以上的损耗,提升开关效率。

3. 增益与频率响应

  • 直流电流增益(hFE):45(典型值,Ic=5mA、VCE=1V),增益一致性好(批次波动≤±10%),便于偏置电路设计;
  • 特征频率(fT):120MHz,支持100MHz以下信号放大/调制,如低功耗射频前置放大、高速电平转换。

4. 漏电流与温度可靠性

  • 集电极截止电流(Icbo):100nA(典型值),静态功耗极低,适合电池供电的便携式设备;
  • 工作温度范围:-55℃~+150℃,符合工业级标准,可在汽车电子、户外设备等高低温场景稳定工作。

三、封装与可靠性设计

PXT8550采用SOT-89表面贴装封装,尺寸仅2.9mm×2.5mm×1.5mm,具备以下优势:

  1. 紧凑布局:适合便携式设备、小型模块(如电源/传感器模块)的高密度设计;
  2. 散热效率:引脚+散热焊盘设计,可将热量快速传导至PCB,满足625mW功率需求;
  3. 焊接可靠:兼容回流焊/波峰焊,无铅工艺符合RoHS环保标准,焊点寿命长。

四、品牌与品质保障

SHIKUES(时科)作为国内功率半导体品牌,PXT8550经严格可靠性测试:

  • 批次hFE一致性分选,确保参数稳定;
  • 高低温循环测试(-55℃~+150℃,1000次)验证温度适应性;
  • 功率循环测试(1.5A脉冲,10000次)确保开关应用寿命。

五、典型应用示例

  1. 低压负载开关:12V系统驱动1A以内负载(如小型电机、LED灯条),降低开关损耗;
  2. 音频放大:便携式音箱/耳机的前置放大,覆盖20Hz~20kHz音频频段;
  3. 传感器调理:温度/压力传感器的模拟信号放大,保证线性度;
  4. 稳压扩展:将5V/0.5A稳压器扩展至5V/1A,提升输出电流能力。

PXT8550凭借平衡的性能参数与工业级可靠性,成为低压中小功率场景的高性价比选择。

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