EL SEGUNDO, Calif. - International Rectifier, IR® (NYSE: IRF) introduces the UFB60FA20 and UFB60FA40 sixty ampere, ultrafast, general-purpose output rectifiers in the SOT-227 package. The 60A rectifiers have up to 11% faster recovery time than competing 200V devices and approximately 17% faster recovery time than competing 400V devices.

Soft recovery and frequency characteristics enable higher welding frequencies that, in turn, make bulky magnetic components such as transformers and coils smaller, less expensive and more reliable. Reducing magnetic component size contributes to overall welding equipment efficiency and reliability. In addition to welding applications, the new devices can be used in industrial power supplies.

The UFB60FA20 (200V) and UFB60FA40 (400V) output rectifiers are electrically isolated from the copper mounting substrate to simplify electrical design, final application layout and heatsink mounting. Multiple devices may be used separately or together for greater voltage or current capability. The four-terminal configuration allows flexibility. The two diodes are independent, and may be used separately or connected in a series, parallel, common-anode or common-cathode configuration.

Newly-designed, high-performance silicon die allow a thicker substrate to be used for improved mechanical strength and electrical insulation. Insulation voltage rating is 2500 volts RMS between live terminals and the copper base.

The SOT-227 is one of the primary industrial mid-power range packages available and is used predominantly throughout the switch-mode power supply and welding markets. The new devices exceed performance specifications of competing devices and are designed for simple insertion into existing or new designs.

Availability and Pricing

The new UFB60FA20 (200V) and UFB60FA40 (400V) Ultrafast soft recovery diodes are available immediately. Pricing is US $10.32 each in 1,000-unit quantities for both devices.

High Resolution JPEGs are available in the Press Room.