Pin Number Pin Name Description 1 Collector Electrons Emitted from Emitter Collected by the Collector 2 Base Controls the biasing of the transistor 3 Emitter Electrons emitted from the emitter into the first PN junction Basic Overview and Features • Switching and Amplifier • High−Voltage: BC556, VCEO = -65 V • Low−Noise: BC559, BC560 • Complement to BC546, BC547, BC548, BC549 • These are Pb−Free Devices • PNP transistor in a TO-92; SOT54 plastic package. • Low current (max. 100 mA) Note: The above specs can vary depending upon the manufacturers of the device. You can check out the BC556 Datasheet, given at the bottom of the page.
