BC557B General Purpose Transistors Features: • PNP Silicon Planar Epitaxial Transistors. • Especially Suited For use in Driver Stages of Audio Amplifiers, Low Noise Input Stages of Tape Recorders, HI-FI Amplifiers, Signal Processing Circuits of Television Receivers. TO-92 Plastic PackageDimensionsMinimumMaximum A 4.32 5.33 B 4.45 5.20 C 3.18 4.19 D 0.41 0.55 E 0.35 0.50 F 5° G 1.40 1.14 H 1.53 K 12.70 - Dimensions : Millimetres Pin Configuration: 1. Emitter 2. Base 3. Collector Page <1> 13/05/08 V1.1