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 +70
C 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
R
15mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forward Current, I
F
10mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating Temperature Range, T
opr
0
to +70
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage Temperature Range, T
stg
60
to +150
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead Temperature (During Soldering, 10sec), T
L
+300
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Characteristics: (0
T
A
+70
C, Note 1 unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Reverse Breakdown Voltage
T
A
= +25
C, I
R
= 1mA
2.390 2.490 2.590
V
Reverse Breakdown Change with Current T
A
= +25
C, 400
A
I
R
10mA
2.6
10
mV
Reverse Dynamic Impedance
T
A
= 25
C, I
R
= 1mA
0.2
1
Temperature Stability
V
R
Adjusted to 2.490V, I
R
= 1mA
1.8
6
mV
Reverse Breakdown Change with Current 400
A
I
R
10mA
3
12
mV
Reverse Dynamic Impedance
I
R
= 1mA
0.4
1.4
Long Term Stability
T
A
= +25
C
0.1
C, I
R
= 1mA
20
ppm
Note 1 Unless otherwise specified the NTE952 is specified from 0
C
T
A
+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 ambi-
ent with 0.125" lead length to a PC board.
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