BC557 Datasheet, PDF (1/6 Pages) Fairchild Semiconductor – Switching and Amplifier

BC557
Rev.E Mar.-2016
DATA SHEET
描述 / Descriptions
TO-92(R)塑封封装 PNP 半导体三极管。Silicon PNP transistor in a TO-92(R) Plastic Package.

特征 / Features
低电流，低电压。
Low current, Low voltage.
用途 / Applications
用于一般放大及开关。
General purpose and switching application.
内部等效电路 / Equivalent Circuit
引脚排列 / Pinning
1 ₂₃
PIN1：Emitter
PIN 2：Base PIN 3：Collector
放大及印章代码 / h_FE Classifications & Marking
h_FE Classifications
Symbol
h_FE Range
A
125～250
B
220～475
C
420～800
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