Industrial power diodes - French manufacturing since 1962
Powerex has been designing and distributing power diodes for the most demanding industrial applications for over 60 years. Our standard and high-speed diodes cover a wide range of currents and voltages to meet the needs of manufacturers of machine tools, power equipment and electrical conversion systems.
Whether you need a component in stock for urgent repairs, or a production volume with a controlled lead time, our technical team will respond within 24 hours.
Standard diodes
Powerex standard diodes are designed for power rectification in high-current industrial applications. Manufactured with silicon wafers from 16 mm to 100 mm in diameter, they offer exceptional long-term current withstand and reliability.
Key features: maximum voltage 6,500 V – maximum average current 10,000 A – silicon from 16 mm to 100 mm – special products on request.
Typical applications: industrial welding rectifiers, power supplies, electrolysis, traction.
Fast diodes
Powerex fast diodes are optimized for frequent switching applications where reverse recovery time (trr) is a critical parameter. Their low trr reduces switching losses and improves overall converter efficiency.
Key features: maximum voltage 4,500 V – maximum average current 1,500 A – silicon from 16 mm to 63 mm – GTO version available.
Typical applications: inverters, variable frequency drives, DC/DC converters, high-performance UPS systems.
Ask for a quote
The choice of a power diode is based on three main parameters: reverse blocking voltage (VRRM), average withstand current (IF(AV)) and, for fast-switching applications, reverse recovery time (trr).
As a general rule, select a diode with a blocking voltage at least 20-30% higher than the circuit’s peak voltage, to guarantee an adequate safety margin. For the current, the maximum junction temperature and junction-housing thermal resistance are decisive.
Our technical team is available to help you identify the part number best suited to your application – whether replacing an existing component or designing a new one.
Custom Diodes and Thyristors
Powerex Europe develops tailor-made products for specific applications: railway, military, aeronautical, industrial. Possible adaptations include customized marking and identification, non-standard housings, custom wires and terminals, sealing treatments, mass reduction, non-standard additional electrical tests, pairings for series or parallel connection, and measurement reports.
- identification (marking)
- Mechanical: non-standard dimensions, special housings, custom wires and terminals
- Waterproofing
- Reduced mass
- Additional electrical tests (non-standard)
- Connections (wire, braid, thread, etc.)
- Pairings for series and/or parallel connection
- PV of measurements
- …
Our power diodes, thyristors and IGBTs are marked with the logo PRX
Our other power semiconductor ranges
Range of power diodes and thyristors for industrial applications
As a specialist in power semiconductors, Powerex offers a wide range of diodes, thyristors and electronic modules for demanding industrial environments.
Our references include dual diodes, fast recovery diodes, AC switch thyristors and SCR modules, designed to guarantee performance, durability and safety in high-voltage and high-current applications.