What is Peak Inverse Voltage (PIV)?
Field: Power switch
China
Definition
The maximum value of the reverse voltage that a PN junction or diode can withstand without damage is termed the Peak Inverse Voltage (PIV). This PIV rating is specified and explained in the datasheet provided by the manufacturer.
However, if the voltage across the junction under reverse bias exceeds this specified value, the junction will be damaged.
As shown in the figure above, a PN junction or diode is commonly used as a rectifier, i.e., to convert alternating current (AC) to direct current (DC). Therefore, it should be noted that during the negative half-cycle of the AC voltage, its peak value must not exceed the rated value of the diode's Peak Inverse Voltage (PIV).
Give a tip and encourage the author!
Recommended
Chinese Gas-Insulated Switchgear Enables Commissioning of Longdong-Shandong ±800kV UHV DC Transmission Project
On May 7, China's first large-scale integrated wind-solar-thermal-storage comprehensive energy base UHV transmission project—the Longdong~Shandong ±800kV UHV DC transmission project—was officially energized and put into operation. The project has an annual transmission capacity exceeding 36 billion kilowatt-hours, with new energy sources accounting for more than 50% of the total. After commissioning, it will reduce carbon dioxide emissions by approximately 14.9 million tons annually, contributin
12/13/2025
High-Voltage SF₆-Free Ring Main Unit: Adjustment of Mechanical Characteristics
(1) The contact gap is primarily determined by insulation coordination parameters, interruption parameters, contact material of the high-voltage SF₆-free ring main unit, and the design of the magnetic blowout chamber. In practical application, a larger contact gap is not necessarily better; instead, the contact gap should be adjusted as close as possible to its lower limit to reduce operating energy consumption and extend service life.(2) The determination of contact overtravel is related to fac
12/10/2025
Role of Three-Phase Voltage Regulator in Power Systems
Three-phase voltage regulators play a crucial role in power systems. As electrical devices capable of controlling the magnitude ofthree-phase voltage,they effectively maintain the stability and safety of the entire power system while enhancing equipment reliability and operational efficiency. Below, the editor from explains the main functions of three-phase voltage regulators in power systems as follows: Voltage Stabilization: Three-phase voltage regulators ensure that voltage remains within a s
12/02/2025
When to Use a Three-Phase Automatic Voltage Stabilizer？
When to Use a Three-Phase Automatic Voltage Stabilizer？A three-phase automatic voltage stabilizer is suitable for scenarios requiring stable three-phase voltage supply to ensure normal equipment operation, extend service life, and improve production efficiency. Below are typical situations that require the use of a three-phase automatic voltage stabilizer, along with analysis: Significant Grid Voltage FluctuationsScenario: Industrial zones, rural power grids, or remote areas where grid voltage f
12/01/2025
Related Products
