Darlington Transistors

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Darlington Transistors

Darlington Transistors will often act like and look like a standard single transistor, but they are actually made up of a pair of transistors and configured as per the diagram below:

Darlington Transistor Configuration Diagram

B – Base, C – Collector, E – Emitter!

This multi-transistor configuration known as the Darlington pair is a circuit consisting of two bipolar transistors with the emitter of one connected to the base of the other. This means the current amplified by the first transistor is amplified further by the second! The collectors are connected together.

These devices offer the simplicity of a single device, but with a much higher gain than can be achieved from a single transistor.

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