Micro Commercial Components (MCC) introduced the MURZ50120P and MURZ75120P, high-voltage super fast recovery rectifiers in a robust TO-247AD package. Engineered for high-frequency power stages where efficiency and EMI performance are critical, these 1200 V diodes feature a maximum reverse recovery time (trr) of 0.22 μs and ultrasoft recovery characteristics to minimize switching losses and significantly reduce electromagnetic interference. Designers can meet tight efficiency and noise targets with less filtering and simpler EMI design.
A low forward voltage drop of 1.85 V cuts conduction losses and improves overall system efficiency. A near-zero temperature coefficient (ZTC) stabilizes forward voltage and switching behavior across wide temperature ranges, easing thermal management and worst-case analysis. High surge current capability—400 A for the MURZ50120P and 500 A for the MURZ75120P—combined with a planar die structure provides strong robustness against inrush and transient events, supporting reliable, repeatable designs.
The MURZ50120P supports an average forward current of 50 A, while the MURZ75120P offers 75 A, giving engineers flexibility to scale power levels or reduce the need for paralleling. Additional attributes include low reverse recovery charge (Qrr) of 2728 nC and 3342 nC for ultrasoft recovery and reduced EMI, plus a rugged TO-247AD through-hole package that delivers excellent thermal performance and mechanical stability while maintaining good creepage and clearance distances for high-voltage layouts.
Target applications include PFC stages, UPS systems, welding equipment and industrial power control—use cases that demand efficiency, ruggedness and high-frequency performance. The combination of 1200 V reverse voltage, high current capability and super fast recovery makes these devices a strong fit for off-line and other industrial high-voltage power systems.
Original – Micro Commercial Components