Technical Data DIODE maximum ratings Voltage, Reverse (VZ) Voltage, Reverse Peak (VRM) Current at VR = OV (IO) Current Average Rectified (IF) Current Surge Peak (IZM) Current, Surge (IFM) at tp = Max. Power Dissipation (PT) at TC = 55 °C Max. Thermal Resistance (Rth J-C) Max. Junction Temperature (TJ) 5.6 V empty V empty A 2.0 A 1.62 A empty A 10.0 W 1.2 °C/W 175.0 °C NO. TYPE empty empty CASE empty empty 1N3997A-SEL ZENER empty empty DO-4_UNF CATHODE TO CASE empty PERFORMANCE C.