Video Tutorial: What is a zener diode?EFY News Network
A Zener diode is a type of pn junction diode. Zener diodes are used in the breakdown region (yield region) by applying a voltage in the opposite direction to normal pn junction diodes.
We offer products that are suitable for various situations, such as high frequency and power sources. Please also refer to the following FAQ and e-learning FAQ: What is diode reverse recovery time (trr)? FAQ: What is a fast recovery diode (FRD)? FAQ: What is a Zener diode (voltage ...
Step 1: Definition of Zener DiodeA Zener diode is a type of semiconductor diode that allows current to flow in the reverse direction when the voltage exceeds a certain value known as the Zener breakdown voltage. Unlike regular diodes, Zener diodes are designed to operate in the breakdown region...
and like common carbon-composition resistor values, may be anywhere from 5 percent to 10 percent in error from the manufacturer’s specifications. However, this stability and accuracy is generally good enough for the Zener diode to be used as a voltage regulator device in common power supply cir...
Zener Breakdown vs. Avalanche Breakdown: Zener breakdown is a controlled, sharp breakdown at a lower voltage compared to the more gradual avalanche breakdown. V-I Characteristics: The Voltage-Current (V-I) characteristics for a Zener diode graphically show the sharp increase in current at the Zene...
The Zener voltage across a diode remains constant over a wide range of Zener current. Because of this property, Zener diodes are widely used as constant-voltage devices.
A reverse bias type diode, it works using the avalanche effect. When voltage drop remains constant and is not affected by the current, the breakdown of avalanche takes place. These diodes are highly sensitive which makes them ideal for photo detection. Zener Diode A very useful type of diode...
These diodes are known as photovoltaic cells and are the basis for solar electric energy systems and photosensors. Yet another form of diode, commonly used in electronic and computer equipment, emits visible light or infrared energy when current passes through it. Such a device is the familiar ...
reverse bias characteristics and VR and IR are examples of these characteristics. A zener diode, however, can conduct in reverse bias and is used for voltage regulation. Zener diodes provide a stable reference voltage and are widely used in power supplies to protect circuits from high voltage ...