Diode

A diode is an electronic component that conducts current primarily in one direction, providing virtually zero resistance in the direction of flow, and significantly high (ideally infinite) resistance in the other.

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Types

Junction diodes

Schottky diodes

Zener diodes

Light-emitting diodes

Laser-emitting diodes

Photodiodes

Transient voltage suppression diodes (TVS)

v t e Digital electronics
Components	Capacitor Crystal Diode Filter Inductor Integrated circuit Logic gate Optoisolator Oscillator Potentiometer Resistor Resonator Thyristor Transformer Transistor Variable capacitor
Gate arrays	Application-specific integrated circuit (ASIC) Complex programmable logic device (CPLD) Field programmable gate array (FPGA) Generic Array Logic (GAL) Programmable logic array (PLA) Programmable logic device (PLD)
Design	Asynchronous logic Finite-state machine Hardware description language Logic synthesis Register-transfer level Routing (electronic design) Synchronous logic
Theory	Boolean algebra Combinational logic Computer architecture Digital signal Digital signal processing