NTC Military Grade Thermistors
Military Grade
Level Designator
Tolerance Code
# of Zeros
1st 3 Resistance Digits
Termination Finish
MIL-PRF-32192 Slash
Sheet Designation
Resistance/Temperature
Ratio
DSCC Drawing Number
TABLE 3
Termination Materials
TYPE
MATERIAL
Epoxy Bondable Gold
Epoxy Bondable Platinum Gold
Epoxy Bondable Platinum Gold
Epoxy Bondable Palladium Silver or Platinum Silver
Epoxy Bondable Palladium Silver or Platinum Silver
Wire Bondable Silver
Wire Bondable Gold
CODE
G
U
T
C
D
S
W
Military Grade Chip Thermistors
The High-Rel Negative Temperature Coefficient chip
thermistor is designed for wire bonding applications
found in hybrid circuitry. The “Top-Bottom” electrodes
are available in silver or gold and accomodate most
industry standard attachment methods.
Engineering Information
Thermal Time Constant*:
10 seconds maximum in still air
Dissipation Constant*:
Power Rating:
Resistance At 25°C:
.625mW/C minimum
.0625W, derate to 0 at 125
15 ohm to 20 Mohm (See Table 2).
D
scc (Defense Supply Center, Columbus) issued
specification MIL-PRF-32192 which dictates the
performance and inspection requirements for these
devices which includes a test for wire bonding integrity.
Several base resistance and curve combinations are
available to suite a wide range of temperature
compensation applications.
*Thermal Time and Dissipation Constant may vary depending on mounting.
Quality Thermistor, Inc. is
AS9100 certified
Dimensions MIL-PRF-32192/3 NTC STYLE
L = .040" +/– .010"
W = .040" +/– .010"
T = .020" Max
Ordering Information
M32192 M 3 W 100 2 J M
TABLE 1
Derating Curve for High Ambient Temperatures
Percent of Maximum Power
100
80
60
40
20
0
-55
-20
0
20
40
80
120
Ambient Temperature (°C)
25°C
125°C
140
160
TABLE 2
RATIO
D
(7.1)
15 Ohm
to
25 Ohm
RATIO
H
(13.0)
100 Ohm
to
500 Ohm
RATIO
L
(16.1)
200 Ohm
to
500 Ohm
RATIO
A
(19.8)
1K Ohm
to
3.3K Ohm
RATIO
B
(29.4)
3.3K Ohm
to
10K Ohm
RATIO
M
(23.3)
10K Ohm
to
30K Ohm
RATIO
N
(38.5)
30K Ohm
to
100K Ohm
RATIO
C
(48.7)
75K Ohm
to
300K Ohm
RATIO
R
(62.5)
500K Ohm
to
2M Ohm
RATIO
X
(142.9)
6.8M Ohm
to
20M Ohm
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