【产品】TO-18插针封装的硅PNP晶体管BC178B，工作和存储结温温度范围为-65℃~+200℃

时间： 2019-07-08 来源：Central Semiconductor

技术问答

Central Semiconductor(美国中央半导体公司，简称Central)是世界顶级分立半导体制作商，，生产的元器件符合 RoHS2 和 REACH 要求，力求为客户提供高品质高可靠性产品；与顶级OEM 设计师合作，提供创新解决方案。

BC178B是Central Semiconductor(美国中央半导体公司)推出的硅PNP晶体管，其封装形式为TO-18插针封装，1引脚为发射极，2引脚为基极，3引脚为集电极，主要用于小信号开关，通用开关等场合。

图1 硅PNP晶体管BC178B实物图

硅PNP晶体管BC178B的集电极-基极电压V_CBO最大为30V，集电极-发射极电压V_CEO最大为25V，发射极-基极电压V_EBO最大为5.0V；同时该器件集电极连续电流I_C最大为100mA，最大功耗为300mW，热阻为175℃/W，工作和存储结温温度范围为-65℃~+200℃，工作温度范围广，适应性能强，在恶劣的环境条件下也可正常工作，其封装尺寸和引脚定义如图2所示。

图2 硅PNP晶体管BC178B封装尺寸和引脚定义

硅PNP晶体管BC178B的集电极-发射极击穿电压BV_CEO典型值为25V；其集电极-发射极饱和压降V_CE(SAT)最大为300mV；特征频率典型值f_T最小为150MHz，具有饱和压降低和切换速度快的优点。

硅PNP晶体管BC178B的产品特性及优势：

▪TO-18插针封装

▪集电极-发射极电压V_CEO为25V

▪集电极连续电流I_C为100mA

▪工作和存储结温温度范围为-65℃~+200℃

硅PNP晶体管BC178B的应用领域：

▪小信号开关

▪通用开关

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