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. 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. D Military Grade Military Grade Chip 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 25C: 15 ohm to 20 Mohm (See Table 2). *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 Level Designator Tolerance Code # of Zeros 1st 3 Resistance Digits Termination Finish MIL-PRF-32192 Slash Sheet Designation Resistance/Temperature Ratio DSCC Drawing Number Percent of Maximum Power TABLE 1 Derating Curve for High Ambient Temperatures 100 25C 80 60 40 20 125C 0 -55 -20 0 20 40 80 120 140 160 Ambient Temperature (C) 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 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 800-554-4784 RATIO M (23.3) 10K Ohm to 30K Ohm RATIO N (38.5) 30K Ohm to 100K Ohm w w w. t h e r m i s t o r. c o m 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 17 NTC THERMISTORS NTC Military Grade Thermistors