1N991

lN9S7 thru lN992 CASE 51 (00-7) Hermetically sealed, all-glass case with all external surfaces corrosion resistant. Cathode end, indicated by color band, will be positive with respect to anode end when operated in the zener region. MAXIMUM RATINGS Junction and Storage Temperature: -65°C to +175°C D C Power Dissipation: 400 Milliwatts at 50°C Ambient (Derate 3.2 mW;oC Above 50°C Ambient) TOLERANCE DESIGNATIONS With no suffix, tolerance is ±20%, for ±10% units, add suffix A, for ±5% units, add suffix B. ELECTRICAL CHARACTERISTICS (TA= 2S0C unless otherwise noted) Motorola Guarantees the Zener Voltage at 90 Seconds with Lead Temperature of 30o C±1°C. 3/8" from Unit Body. NOMINAL ZENER VOLTAGE TYPE VI NUMBER VOLTS TEST CURRENT I" mA MAXIMUM ZENER IMPEDANCE 1"@I" Ohms 1,,@Iz, Dbms mI"A IN957 6.8 18.5 4.5 IN958 7.5 16.5 5.5 IN959 8.2 IS 6.5 IN960 9.1 14 7.5 IN961 10 12.5 8.5 IN962 11 11.5 9.5 700 1.0 700 0.5 700 0.5 700 0.5 700 0.25 700 0.25 MAXIMUM DC ZE...