n)a IS 0.45 A Power Dissipationa Operating Junction and Storage Temperature Range TA=25oC TA=70oC PD TJ, Tstg 0.5 0.42 -55 to 150 W oC THERMAL RESISTANCE RATINGS Parameter Maximum Junction-to-Ambienta t <= 5 sec Steady-State Notes a. Surface Mounted on 1” x 1” FR4 Board. b. Pulse width.