"A" "B" "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

Diode Types

DIODE. A diode is a two terminal device using a PN junction. Diodes may be made from Silicon, Germanium, Selenium, or Gallium Arsenide. Most diodes will be made of Silicon. Normally a forward voltage drop of 0.7 volts will be seen with Silicon Diodes, and a forward voltage drop of 0.3 volts will be seen with Germanium Diodes.
Diodes are primarily used as switching devices. [Diode Manufacturers]. Diode types:

DIODE DETECTOR. A demodulator that uses one or more diodes to provide a rectified output with an average value that is proportional to the original modulation.

Rectifier Diode: Heavy duty [high current] used to convert AC to DC

Tunnel Diode: Has a negative resistance region. The current through the diode increases up to a certain voltage, than with increasing voltage the current decreases until a voltage point is reached and the current begins to increase again

Zener Diode: Designed to conduct in the reverse [bias] direction: with a precise breakdown voltage [Vz].
Detailed Zener Diode Definition, or [Zener Diode Manufacturers]

Varactor Diode: 'Varicap' or 'VVC', Voltage [dependent] variable capacitor [varies in picofarads]

Schottky Diode: A Schottky Diode is designed with a rapid turn on and off once the threshold voltage is reached

Light Emitting Diode
Light Emitting Diode: 'LED', A PN-junction diode that emits visible light when it is forward biased. Depending on the material used to make the diode, the light may be red, green, or amber. More LED Terms, [LED Manufacturers]

Photodiode: Operated in reverse-bias, reverse current increases 'almost' linearly with increase in incident light

Varistor: Resistance [flow of current] changes as a function of applied voltage voltage. A varistor may also be called a VDR [Voltage Dependent Resistor]. Varistors will have a negative voltage coefficient [high resistance at low voltages and a low resistance at high voltages]. [Varistor Manufacturers ]

Metal Oxide Varistor: [MOV] See listing above. MOV devices are used in parallel with the load.

Transient Voltage Suppressor: 'TVS', Designed to absorb a transient over-voltage. The device may be designed as Uni-Polar device protecting in one direction or a Bi-Polar device protecting the circuit in both directions. TVS manufacturers are listed on the Transient Voltage Suppressor page [Nonlinear Resistor Manufacturers]. TVS devices are used in parallel with the load.

Definitions by application, include:

Clamping Diode: A diode used to limit the peak voltage on a line to a pre-determined maximum voltage.

Welding Diode: A diode with a very large forward current rating.

 
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