NTE NTE952

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 0.2Ω dynamic impedance.
This device is rated for operation over a 0° to +70°C temperature range and is available in a TO–92
package.
Features:
• Low Temperature Coefficient
• Wide Operating Current of 300µA to 10mA
• 0.2Ω Dynamic Impedance
• ±1% Initial Tolerance Available
• Guaranteed Temperature Stability
• Easily Trimmed for Minimum Temperature Drift
• Fast Turn–On
Absolute Maximum Ratings:
Reverse Current, IR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15mA
Forward Current, IF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –60° to +150°C
Lead Temperature (During Soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300°C
Electrical Characteristics: (0° ≤ TA ≤ +70°C, Note 1 unless otherwise specified)
Parameter
Reverse Breakdown Voltage
Test Conditions
TA = +25°C, IR = 1mA
Min
Typ
Max
2.390 2.490 2.590
Unit
V
Reverse Breakdown Change with Current TA = +25°C, 400µA ≤ IR ≤ 10mA
–
2.6
10
mV
Reverse Dynamic Impedance
TA = 25°C, IR = 1mA
–
0.2
1
Ω
Temperature Stability
VR Adjusted to 2.490V, IR = 1mA
–
1.8
6
mV
Reverse Breakdown Change with Current 400µA ≤ IR ≤ 10mA
–
3
12
mV
Reverse Dynamic Impedance
IR = 1mA
–
0.4
1.4
Ω
Long Term Stability
TA = +25°C ±0.1°C, IR = 1mA
–
–
20
ppm
Note 1 Unless otherwise specified the NTE952 is specified from 0°C ≤ TA ≤ +70°C. The maximum
junction temperature is 100°C. For elevated junction temperature the derating is based on
180°C/W junction to ambient with 0.4” leads from a PC board and 160°C/W junction to ambient 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
V (–)
Adjust
V (+)
.100 (2.54)
.050 (1.27)
.165
(4.2)
Max
.105 (2.67) Max
.105 (2.67) Max
.205 (5.2) Max