Vishay Expands Gen 7 FRED Pt Hyperfast Rectifiers for EV and Industrial Power Applications

Vishay released four 1200 V FRED Pt hyperfast rectifiers in the eSMP series SlimSMA HV (DO-221AC) package, expanding its Gen 7 platform for industrial and automotive applications. The 1 A and 2 A devices, VS-E7JX0112-M3, VS-E7JX0212-M3, VS-E7JX0112HM3, and VS-E7JX0212HM3, offer reverse recovery charge (Qrr) down to 105 nC typical, forward voltage drop down to 1.45 V, recovery time down to 45 ns, and junction capacitance down to 2.5 pF.

The rectifiers provide non-repetitive peak surge current up to 21 A in a 2.6 mm by 5.2 mm package with a 0.95 mm profile, compared to 2.3 mm for the competing SMA package. They feature a minimum 3.2 mm creepage distance and molding compound with a comparative tracking index (CTI) ≥ 600 (Material Group I), aligning with IEC 60664-1 requirements for high-voltage applications to reduce component counts and bill-of-materials costs.

The devices function as clamp, snubber, and freewheeling diodes in flyback auxiliary power supplies and high-frequency rectifiers for bootstrap driver functionality, and provide desaturation protection for fast-switching IGBTs and high-voltage Si/SiC MOSFETs. Applications include industrial drives and tools, on-board chargers and motors for electric vehicles (EV), energy generation and storage systems, Ćuk convert...