Vishay expands family of Hyperfast rectifiers

Vishay Intertechnology, Inc. has released four new FRED Pt Gen 5 600-V Hyperfast rectifiers in a fully isolated TO-220 FullPAK 2L package. Claiming the best reverse recovery performance for devices in their class, the Vishay Semiconductors 12-A VS-E5TW1206FP-N3 and VS-E5TX1206FP-N3 and 15-A VS-E5TW1506FP-N3 and VS-E5TX1506FP-N3 are designed to increase the efficiency of medium frequency converters and hard- and soft-switched or resonant designs.

(Source: Vishay Intertechnology)

All four lines are available in X-type and the new W-type speed classes. For CCM and resonant applications with higher switching frequencies to 100 kHz and low di/dt to 350 kHz, W-type devices deliver lower Qrr, while X-type rectifiers offer lower forward voltage, said Vishay. The devices offer an isolation voltage of 2500 V.

Compared to previous-generation solutions, the new devices reduce reverse recovery charge (Qrr) by 60%, resulting in 90% lower recovery losses, said Vishay. In addition, the rectifiers are reported to deliver a 10% improvement in reverse recovery energy (Erec) compared to the closest competing device, a softer recovery tail for improved EMI reduction, and more stable operation over the operating temperature range of -55°C to 175°C for increased thermal performance.

These devices can be used in different circuit topologies, including classic and bridgeless power factor correction (PFC) front-end configurations. They can act as output and PFC rectifiers for AC/DC and DC/DC power stages in industrial applications, including air conditioners, off-board chargers, lighting, hybrid solar inverters, and UPS.

Device specifications:

(Source: Vishay Intertechnology)

Samples of the FRED Pt rectifiers are available now. Lead time for production quantities is 20 weeks. The devices are RoHS compliant and halogen-free