UL Listed Temperature Sensor Features: • • • • • • Fast response, excellent thermal tracking High accuracy NTC sensor, 10kΩ ± 0.2˚C accuracy from 0˚C to 70˚C Wide operating temperature range: -40˚C to 105˚C 600 Volt isolation sensor to terminal UL94V0 rated epoxy 3.6mm (0.142" hole size) Ordering Information MS Part Number R25 (W) Material Curve Accuracy A1004AS20T1 10,000 Z ±0.2˚C, 0˚C to 70˚C UL Listed Surface Temperature Sensor Description: MS assembly A1004AS20T1 is a general purpose thermistor probe for temperature sensing and is listed with Underwriters Laboratories (Certification file E193945). This sensor can be used to monitor air temperature or can be screw mounted for surface temperature measurement. The assembly consists of a highly stable NTC thermistor that is epoxied into an aluminum housing. The thermistor is a 10kΩ thermistor with an accuracy of ±0.2˚C from 0˚C to 70˚C. The sensor leads are AWG#20, teflon insulated UL rated wire. Sleeving is used to provide strain relief and to guarantee the UL rated 400 volt isolation between the sensor and the housing. The assembly is UL rated for operation to 105˚C. Resistance vs. Temperature Data for MS Part Number A1004AS20T1 Temp (˚C) Res (W) TACCY (˚C) Temp (˚C) Res (W) TACCY (˚C) Temp (˚C) Res (W) TACCY (˚C) Temp (˚C) Res (W) TACCY (˚C) -40 336,050 1.00 0 32,650 0.20 40 5,325 0.20 80 1,256 0.27 -35 242,397 0.90 5 25,394 0.20 45 4,367 0.20 85 1,070 0.30 -30 176,785 0.80 10 19,903 0.20 50 3,601 0.20 90 915.9 0.33 -25 130,295 0.70 15 15,714 0.20 55 2,985 0.20 95 786.8 0.37 -20 96,999 0.60 20 12,493 0.20 60 2,487 0.20 100 678.4 0.40 -15 72,906 0.50 25 10,000 0.20 65 2,082 0.20 105 587.1 0.45 -10 55,301 0.40 30 8,056 0.20 70 1,752 0.20 -5 42,315 0.30 35 6,530 0.20 75 1,480 0.23 28 Temperature Sensor Products precisionsensors.meas-spec.com 1711 139th Lane NW Andover, MN 55304 Ph: +1 800.899.9783 12-04-14 www.meas-spec.com