NTE998 Integrated Circuit 1.22V Reference Diode Description: The NTE998 is a temperature compensated low voltage reference device in a TO92 type package. A single monolithic structure is obtained by utilizing transistors and thin film resistors. Benefits of this construction is low noise, low current, and good long term stability associated with modern integrated circuits. These characteristics make this device ideal for applications in battery operated equipment or where low power is necessary. Features: Low Breakdown Voltage: 1.220V typ Low Bias Current: 50 A Temperature Stability: .005 to .01%/C Absolute Maximum Ratings: Power Dissipation (free air) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600mW Linear Derating Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mW/C Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Reverse Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5mA Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 to +150C Operating Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C Lead Temperature (Soldering, 10 sec.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260C Electrical Characteristics: Parameter Test Conditions Min Typ Max Unit Reverse Breakdown Voltage I = 500 A 1.20 1.22 1.25 V R Reverse Breakdown Voltage Change 50 A I 5mA 15 20 mV R Reverse Dynamic Impedance I = 50 A 1 2 R I = 500 A 1 2 R Forward Voltage Drop I = 500 A 0.7 1.0 V F RMS Noise Voltage I = 500 A 0.7 1.0 V F Breakdown Voltage Temperatue Coefficient 50 A I 5mA 0.003 0.01 %/C R Reverse Current 0.05 5.0 mA.135 (3.45) Min .190 (4.8) Max .500 .018 (.045) Dia Max (12.7) Min A K .100 (2.54) .160 (4.1) Max .205 (5.2) Max .080 (2.0) Max