1N941-1N946B TEMPERATURE COMPENSATED ZENER DIODES High-reliability discrete products and engineering services since 1977 FEATURES Available as “HR” (high reliability) screened per MIL-PRF-19500, JANTX level. Add “HR” suffix to base part number. Available as non-RoHS (Sn/Pb plating), standard, and as RoHS by adding “-PBF” suffix. MAXIMUM RATINGS Operating and Storage Temperature: -55 to +175°C DC Power Dissipation: 500 mW @ TL = 25°C maximum current lZM of 39mA Optimum Voltage Temperature Stability lZ = 7.5mA Solder Temperatures: 260°C for 10 s (maximum) ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified) Zener Voltage VZ @ lZT (Note 4) Zener Test Current lZT Maximum Zener Impedance (Note 2) ZZT @ lZT Maximum Reverse Current lR @ 8 V Voltage Temperature Stability (Note 3 & 4) VZT Maximum Temperature Range Effective Temperature Coefficient αVZ Volts mA Ohms μA mV °C %/°C 1N941 11.12-12.28 7.5 30 15 88 0 to +75 0.01 1N941A 11.12-12.28 7.5 30 15 181 -55 to +100 0.01 1N941B 11.12-12.28 7.5 30 15 239 -55 to +150 0.01 1N942 11.12-12.28 7.5 30 15 44 0 to +75 0.005 1N942A 11.12-12.28 7.5 30 15 90 -55 to +100 0.005 1N942B 11.12-12.28 7.5 30 15 120 -55 to +150 0.005 1N943 11.12-12.28 7.5 30 15 18 0 to +75 0.002 1N943A 11.12-12.28 7.5 30 15 36 -55 to +100 0.002 1N943B 11.12-12.28 7.5 30 15 47 -55 to +150 0.002 1N944 11.12-12.28 7.5 30 15 9 0 to +75 0.001 1N944A 11.12-12.28 7.5 30 15 18 -55 to +100 0.001 1N944B 11.12-12.28 7.5 30 15 24 -55 to +150 0.001 1N945 11.12-12.28 7.5 30 15 4 0 to +75 0.0005 1N945A 11.12-12.28 7.5 30 15 9 -55 to +100 0.0005 1N945B 11.12-12.28 7.5 30 15 12 -55 to +150 0.0005 1N946 11.12-12.28 7.5 30 15 1.8 0 to +75 0.0002 1N946A 11.12-12.28 7.5 30 15 3.6 -55 to +100 0.0002 1N946B 11.12-12.28 7.5 30 15 4.7 -55 to +150 0.0002 Type Number (Note 1) Note 1: For tighter voltage tolerances, add a hyphenated suffix to the part number for desired tolerance at the end of the part number. Note 2: Measured by superimposing 0.75mA ac rms on 7.5 mA dc @ 25°C. Note 3: The maximum allowable change observed over the entire temperature range will not exceed the specified mV change at any discrete temperature between the established limits. Note 4: Voltage measurements to be performed 15 seconds after application of dc current. Rev. 20121112 High-reliability discrete products and engineering services since 1977 1N941-1N946B TEMPERATURE COMPENSATED ZENER DIODES MECHANICAL CHARACTERISTICS Case: DO-35 Marking: Body painted, alpha-numeric Polarity: Cathode band Rev. 20121112