WMSIC Electronic Components

LGE SS8550

ModelSS8550
PackageTO-92-3
BrandLGE
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
LGE SS8550
Type
LGE
Minimum package
2000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LGE
Electronic Component
SS8550
Electronic Component
1
Package
TO-92-3
Electronic Component
1 PNP
Electronic Component
Transistor(BJT)
Electronic Component
0.202g
Electronic Component
1
Electronic Component
BM0228289839
Operating Temperature
55℃~+150℃
Transistor Type
PNP
Frequency(f T)
100MHz
Power Dissipation(Pd)
1W
Electronic Component
Electronic Component
Electronic Component
2000

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

SS8550 产品概述

一、产品简介

SS8550 是一款由 LGE(鲁光)生产的 PNP 小信号三极管,封装为常见的 TO-92-3 直插形式。该器件面向通用低功率放大与开关场景,具有较高的直流电流增益和良好的高频特性,适合消费电子、音频前级以及小功率驱动电路等领域。单件供应(数量:1个),适合样机验证和小批量装配。

二、主要电气参数

  • 晶体管类型:PNP
  • 集电极电流 Ic(最大):1.5 A
  • 集—射极击穿电压 Vceo:25 V
  • 最大耗散功率 Pd:300 mW(环境温度与散热条件影响较大)
  • 直流电流增益 hFE(参考):260(取决于 Ic 与 Vce)
  • 特征频率 fT:100 MHz(表征高频放大能力)
  • 集电极截止电流 Icbo:100 nA(室温)
  • 集—射极饱和电压 VCE(sat):约 500 mV(在规定的 Ib、Ic 条件下)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 射基极击穿电压 Vebo:6 V

三、特点与优势

  • 高增益:hFE 约 260,在小信号电流下能提供较大增益,适合前级放大。
  • 宽频带:fT = 100 MHz,适合中高频小信号放大和快速开关应用。
  • 低漏电:Icbo 仅 100 nA,有利于高阻抗电路或偏置稳定。
  • 小型通用封装 TO-92-3,便于手工焊接和面包板原型验证。
  • 工作温度范围宽,适应工业级环境。

四、典型应用

  • 小功率音频前级放大器(与互补 NPN 器件配对构成推挽或差动级)。
  • 低电压开关与驱动(注意 Pd 限制,不适合持续大功率负载)。
  • 小信号放大与电平转换、高频缓冲级。
  • 与 SS8050 等 NPN 器件常用作互补配对,用于放大电路或推挽结构。

五、使用建议与注意事项

  • 功率与散热:Pd 仅 300 mW,在 TO-92 小封装下散热能力有限。工作时应保证在合适的环境温度下使用并做好 PCB 散热(增加铜箔、短走线、降低结温)。在高环境温度时按厂商数据手册进行功率降额。
  • 电流与增益关系:标称 hFE 在特定 Ic 范围内测得,实际电路中随 Ic 增大或饱和工作状态时 hFE 会显著下降,设计时应参考完整的 hFE–Ic 曲线。
  • 饱和与开关:VCE(sat) ≈ 0.5 V 在规定驱动条件下成立,作为开关使用时需保证基极驱动电流足够以降低饱和压并缩短开关时间。
  • 基—射极反向电压:Vebo = 6 V,不要反向施加超过此值以免损坏基极结。
  • ESD 与静电防护:尽管为硅三极管,但在装配与测试时仍应采取静电防护措施以提高可靠性。
  • 引脚排列与封装:TO-92-3 为通用直插封装,但厂商不同存在引脚顺序差异,实际接线请以 LGE 提供的数据手册或器件实物标识为准。

六、封装与采购信息

  • 品牌:LGE(鲁光)
  • 封装:TO-92-3(直插)
  • 单位:1 个/件(适合样机和小批量)
  • 备注:为保证设计一致性与可靠性,建议在批量采购前索取并核对 LGE 的完整器件数据手册(包括最大额定曲线、典型特性曲线和封装图),并进行样机测试验证。

总结:SS8550 为一款性能平衡、适用于通用低功率放大与开关的 PNP 小信号三极管。其高增益与良好高频特性使之在音频、信号处理和小功率驱动器中有较好表现,但在功率耗散和热管理方面需特别注意。

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