HomeWhat is high voltage diode
A high-voltage diode is any diode designed to operate at extremely high voltages or exhibit specific properties when exposed to high voltages. Nearly any diode can operate at any voltage if that is what it is made to do. By reinforcing parts of the diode and using specific materials during its construction, it is possible for a diode to withstand extremely high amounts of power. With that being said, there are several types of diodes that are commonly used when dealing with high voltages or voltage spikes.
It is this semiconductor that turns a common diode into a high-voltage diode. These semiconductors are created through a process called doping. A dopant is applied to each end of the semiconductor: one dopant creates a positive charge, and one is negative. The area between the two ends is left undoped and is generally referred to as the intrinsic layer or the p-n junction. The doping materials and the size of the p-n junction are important to the overall diode function.
Avalanche diodes are a type of high-voltage diode that can handle large amounts of power. An avalanche effect is caused when a charge begins to increase in a diode without a subsequent increase in outside power. This effect will destroy normal diodes, but an avalanche diode will continue operation until the outer voltage catches up or the system equalizes.
Terminology
VRRM shorted for Repetitiive Peak Reverse Voltage, and it is measured with"KV".
IF shorted for Maximum Average Forward Current, and it is measrued with "mA".
IFSM shorted for Maximum single cycle surge current, and it is measured with"A".
VFM shorted for Peak Forward Voltage, and it is measured with "V".
IR shorted for Maximum D.C.Reverse Current, and it is measured with "μA".
Ta shorted for Ambient Temperature, and it is measured with "°C"
Trr shorted for Maximum Reverse Recovery time, and it is measured with "nS".