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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.
Military Grade Chip Thermistors
NTC Military Grade Thermistors
Engineering Information
Thermal Time Constant*: 10 seconds maximum in still air
Dissipation Constant*: .625mW/C minimum
Power Rating: .0625W, derate to 0 at 125
Resistance At 25°C: 15 ohm to 20 Mohm (See Table 2).
*Thermal Time and Dissipation Constant may vary depending on mounting.
TABLE 2
100
80
60
40
20
0
-55 -20 0 20 40 80 120 140 160
25°C
125°C
TABLE 1 Derating Curve for High Ambient Temperatures
Ambient Temperature (°C)
Percent of Maximum Power
Dscc (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.
Quality Thermistor, Inc. is
AS9100 certified
Military Grade
NTC THERMISTORS
TABLE 3 Termination Materials
TYPE MATERIAL CODE
Epoxy Bondable Gold G
Epoxy Bondable Platinum Gold U
Epoxy Bondable Platinum Gold T
Epoxy Bondable Palladium Silver or Platinum Silver C
Epoxy Bondable Palladium Silver or Platinum Silver D
Wire Bondable Silver S
Wire Bondable Gold W
Ordering Information
M32192 M 3 W 100 2 J M Level Designator
Tolerance Code
# of Zeros
1st 3 Resistance Digits
Termination Finish
MIL-PRF-32192 Slash
Sheet Designation
Resistance/Temperature
Ratio
DSCC Drawing Number
Dimensions MIL-PRF-32192/3 NTC STYLE
L = .040" +/– .010"
W = .040" +/– .010"
T = .020" Max
RATIO D (7.1) RATIO H (13.0) RATIO L (16.1) RATIO A (19.8) RATIO B (29.4) RATIO M (23.3) RATIO N (38.5) RATIO C (48.7) RATIO R (62.5) RATIO X (142.9)
15 Ohm 100 Ohm 200 Ohm 1K Ohm 3.3K Ohm 10K Ohm 30K Ohm 75K Ohm 500K Ohm 6.8M Ohm
to to to to to to to to to to
25 Ohm 500 Ohm 500 Ohm 3.3K Ohm 10K Ohm 30K Ohm 100K Ohm 300K Ohm 2M Ohm 20M Ohm
