NTE5427 thru NTE5429 Silicon Controlled Rectifier (SCR) 7 Amp Absolute Maximum Ratings: Repetitive Peak Reverse Voltage (TC = +110°C), VRRM NTE5427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V NTE5428 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400V NTE5429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600V Repetitive Peak Off–State Voltage (TC = +110°C), VDRM NTE5427 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200V NTE5428 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400V NTE5429 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600V RMS On–State Current (TC = +80°C, Conduction Angle of 180°), IT(RMS) . . . . . . . . . . . . . . . . . . . 7A Peak Surge (Non–Repetitive) On–State Current (One Cycle at 50 or 60Hz), ITSM . . . . . . . . . . . 80A Peak Gate–Trigger Current (3µs Max), IGTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A Peak Gate–Power Dissipation (IGT ≤ IGTM), PGM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20W Average Gate Power Dissipation, PG(AV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500mW Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +110°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Typical Thermal Resistance, Junction–to–Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5°C/W Electrical Characteristics: (TC = +25°C unless otherwise specified) Parameter Peak Off–State Current Symbol IRRM IDRM Maximum On–State Voltage DC Holding Current VTM Test Conditions Min Typ Max Unit VRRM = Max, VDRM = Max, TC = +110°C, ° RGK = 1kΩ Ω – – 1 mA – – 1 mA IT = 7A – – 2 V – – 50 mA IHOLD DC Gate–Trigger Current IGT VD = 6VDC, RL = 100Ω – – 25 mA DC Gate–Trigger Voltage VGT VD = 6VDC, RL = 100Ω – – 1.5 V Gate Controlled Turn–On Time tgt IG x 3GT – 2 – µs I2t for Fusing Reference I2t For SCR Protection – – 2.6 A2sec – 100 – V/µs Critical Rate of Off–State Voltage dv/dt Gate Open, TC = +100°C (critical) .352 (8.95) Dia Max .325 (8.13) Dia Max .250 (6.35) Max 1.500 (38.1) Min .019 (0.5) Gate Cathode Anode 45° .031 (.793)