NTE952 Integrated Circuit Precision 2.5V Shunt Description: The NTE952 integrated circuit is a precision 2.5V shunt regulator diode. This monolithic IC voltage reference operates as a low temperature coefficient 2.5V zener with 0.2 dynamic impedance. This device is rated for operation over a 0 to +70C temperature range and is available in a TO92 package. Features: Low Temperature Coefficient Wide Operating Current of 300 A to 10mA 0.2 Dynamic Impedance 1% Initial Tolerance Available Guaranteed Temperature Stability Easily Trimmed for Minimum Temperature Drift Fast TurnOn Absolute Maximum Ratings: Reverse Current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA R Forward Current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA F Operating Temperature Range, T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C opr Storage Temperature Range, T 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . to +150C stg Lead Temperature (During Soldering, 10sec), T . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300C L Electrical Characteristics: (0 T +70C, Note 1 unless otherwise specified) A Parameter Test Conditions Min Typ Max Unit Reverse Breakdown Voltage T = +25C, I = 1mA 2.390 2.490 2.590 V A R Reverse Breakdown Change with Current T = +25C, 400 A I 10mA 2.6 10 mV A R Reverse Dynamic Impedance T = 25C, I = 1mA 0.2 1 A R Temperature Stability V Adjusted to 2.490V, I = 1mA 1.8 6 mV R R Reverse Breakdown Change with Current 400 A I 10mA 3 12 mV R Reverse Dynamic Impedance I = 1mA 0.4 1.4 R Long Term Stability T = +25C 0.1C, I = 1mA 20 ppm A R Note 1 Unless otherwise specified the NTE952 is specified from 0C T +70C. The maximum A junction temperature is 100C. For elevated junction temperature the derating is based on 180C/W junction to ambient with 0.4 leads from a PC board and 160C/W junction to ambi- ent with 0.125 lead length to a PC board..135 (3.45) Min .210 (5.33) Max Seating Plane .021 (.445) Dia Max .500 (12.7) Min Adjust V () V (+) .100 (2.54) .050 (1.27) .165 (4.2) Max .105 (2.67) Max .105 (2.67) Max .205 (5.2) Max