MAL RESISTANCE RATINGS THERMAL RESISTANCE Junction-to-Case Junction-to-Ambient3 SYMBOL RθJC RθJA TYPICAL 1Pulse width limited by maximum junction temperature. 2Duty cycle < 1% 355°C / W when mounted on a 1 in2 pad of 2 oz copper. 4Guarantee by Engineering test MAXIMUM 1.5 55 UNIT °C/W 2020/4/1.