A diode is a type of semiconductor that acts as a one-way switch for electrical current. It has very low resistance in one direction, but very high resistance in the other direction. Diodes are commonly used to convert AC power to DC power, for the demodulation of signals, to protect against power spikes, and to ensure that current flows only in the desired direction, among other uses. Quest Components sells a wide range of diodes from top manufacturers.

Types of Diodes

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