onsemi Single FETs, MOSFETs UJ4N075005K4S

The UJ4N075005K4S is a 750 V, normally-on silicon carbide JFET transistor in a TO247-4 package, designed for solid-state circuit breakers, relays, and surge protection applications. It has a maximum drain-source on-resistance of 4.8 mΩ at 25°C with VGS = 2 V and ID = 80 A. The device supports continuous drain current up to 120 A and pulsed drain current up to 588 A, with a short-circuit withstand time of 5 μs at 400 V drain-source voltage. Maximum junction temperature is 175°C, and thermal resistance junction-to-case is rated at 0.16 to 0.21 °C/W. The component is Pb-free, halogen-free, and RoHS compliant.