High accuracy thermistor AT Thermistor The AT series thermistor features high accuracy with tight resistance and B-value tolerances (1%). Features: Uniform shape facilitates automated assembly Long term reliability Five different standard shapes available Product number explanation Dimensions Fig. 1 103 ATFT 0.3 TPE resin parallel wire Bare lead wire 103AT-11 S AAA (AT-5 only) 5 1 15 max. FT: Taping + 20 600 0 No marking: Untaped bulk products Shape 11: See Fig. 1 2: See Fig. 2 Unit: mm 3: See Fig. 3 4: See Fig. 4 Fig. 2 Color code Resin 5: See Fig. 5 0.5 tin plated 42 alloy 0.7 High accuracy thermistor Rated zero-power resistance at 25 Color code: Product number 8.51 E.g.: 103 = 10 x 10 Black: 102AT-2 171.5 Red: 202AT-2 Yellow: 502AT-2 White: 103AT-2 None: 203AT-2 Applications 4.0 max. Unit: mm Office automation, measuring instruments, controllers, mobile devices, battery chargers, battery packs, fan motors, home electronics, Fig. 3 Tie bar Color code Resin HVAC equipment, solar systems, security, thermometers, automotive, 0.5 tin plated 42 alloy vending machines, refrigerated display cases, agricultural equipment 1.0 8.51 171.5 4.0 max. Unit: mm Resin 0.5 tin plated copper wire Fig. 5 Fig. 4 Resin PVC AWG30 3 1 8.0 max. 3 6 1 40 to 100 30 1 Unit: mm Unit: mm Specifications Dissipation factor Thermal time Rated power at Operating temperature Product number R R tolerance value 25 25 (mw / ) constant (s) 25 (mW) range () 102AT-11 1.00 3100 1 - 50 to 90 202AT-11 2.00 3182 1 502AT-11 5.00 3324 1 approx. 2.6 approx. 75 13 103AT-11 10.0 3435 1 - 50 to 105 203AT-11 20.0 4013 1 102AT-2 1.00 3100 1 1 - 50 to 90 202AT-2 2.00 3182 1 502AT-2 5.00 3324 1 approx. 15 approx. 2.0 10 103AT-23 10.0 3435 1 - 50 to 110 203AT-2 20.0 4013 1 103AT-4 10.0 3435 1 approx. 10 - 30 to 90 103AT-5 10.0 3435 1 approx. 2.5 approx. 15 12.5 - 50 to 110 1 2 : Rated zero-power resistance at 25 : B value calculated from rated zero-power resistance at 25 and 85 3 : Time required to reach 63.2% of temperature difference. Measured with sensor suspended in mid-air. 12 2.4 1 3.5 1 2.5 0.5 5 max. 6 0.2 2.4 max. 3.7 max. 2.5 max. 2.4 max. 3.7 max. 2.54 0.25 2.54 0.25 Reliability data Item Test conditions Criteria AT-2, 3, 4 10 s at 260 or 3.5 s at 350 Resistance to soldering heat R, B 1% AT-5 5 s at 260 or 1.5 s at 350 AT-2, 3 2 s at 245 . Flux material: Rosin 25%, ethyl alcohol 75%. Solderability More than 90% soldered AT-4, 5 2 s at 235 . Flux material: Rosin 25%, ethyl alcohol 75%. AT-11 10 s at 30 N (horizontal pull) AT-2, 3 A load of 2 N is applied to the wire terminations in vertical direction for 10 s (see Fig. 1) Tensile strength (lead wire) AT-4 60 s at 5 N (horizontal pull) AT-5 A load of 2 N is applied to the wire terminations in vertical direction for 3 s (see Fig. 1) AT-11 5 N, ten times, 90 R, B 1% and visual AT-2, 3 One time, 90 inspection Termination bending AT-4 1 N, five times, 90 AT-5 2.5 N, two times, 90 AT-11, 2, 3 Three times natural fall to a maple board from 1 m height. Free fall AT-4 Three times natural fall to a maple board from 0.75 m height. AT-5 One time natural fall to a maple board from 1 m height. AT-11, 2, 3, 5 1000 V AC for one minute Voltage proof Less than 1 mA AT-4 100 V DC for one second AT-11, 2, 3, 5 500 V DC Insulation resistance Over 100 M AT-4 100 V DC 4 AT-11 1000 hours at 105 (90 ) 4 Dry heat AT-2, 3, 5 1000 hours at 110 (90 ) AT-4 1000 hours at 90 1000 hours at 70 and 90% humidity AT-11 Electrical load: 1 mA DC Damp heat (under electrical load) 1000 hours at 40 and 90% humidity AT-2, 3, 4, 5 Electrical load: 1 mA DC 100 cycles as below: AT-11 1. - 55 for 30 minutes 2. Room temperature for 3 minutes R, B 1% 3. 85 for 30 minutes 4. Room temperature for 3 minutes 100 cycles as below: AT-2, 3 1. - 30 for 30 minutes 2. Room temperature for 3 minutes 3. 90 for 30 minutes 4. Room temperature for 3 minutes Temperature cycle (thermal shock) 100 cycles as below: AT-4 1. - 20 for 30 minutes 2. Room temperature for 1 minute 3. 70 for 30 minutes 4. Room temperature for 1 minute 100 cycles as below: AT-5 1. - 30 for 30 minutes 2. Room temperature for 3 minutes 3. 90 for 30 minutes 4. Room temperature for 3 minutes 4 : Conditions for 102AT-11, 202AT-11, 102AT-2, 202AT-2 Resistance / temperature characteristics Caution Temperature Product number AT-2, 3, 5 () 102AT 202AT 502AT 103AT 203AT When bending the lead wires using for example a radio - 50 24.46 55.66 154.6 329.5 1253 plier make sure to have a minimum distance from the - 40 14.43 32.34 88.91 188.5 642.0 sensor head of 3 mm. - 30 8.834 19.48 52.87 111.3 342.5 Do not apply a mechanical load of more than 2 N in the - 20 5.594 12.11 32.44 67.77 190.0 way depicted in Fig. 1 below. The variation of the load - 10 3.651 7.763 20.48 42.47 109.1 direction should be less then 0.3 mm (see Fig. 2). 0 2.449 5.114 13.29 27.28 64.88 10 1.684 3.454 8.840 17.96 39.71 0.3 20 1.184 2.387 6.013 12.09 24.96 25 1.000 2.000 5.000 10.00 20.00 30 0.8486 1.684 4.179 8.313 16.12 2N 40 0.6189 1.211 2.961 5.827 10.65 Fig. 1 Fig. 2 50 0.4587 0.8854 2.137 4.160 7.181 60 0.3446 0.6587 1.567 3.020 4.943 70 0.2622 0.4975 1.168 2.228 3.464 When soldering make sure to have a minimum 80 0.1999 0.3807 0.8835 1.668 2.468 distance of 5 mm (8.5 mm), use a soldering iron with 85 0.1751 0.3346 0.7722 1.451 2.096 50 W and solder for maximum 7 (2) seconds at 340 C 90 0.1536 0.2949 0.6771 1.266 1.788 (350 C). If you plan to cut the lead wire shorter than 100 0.5265 0.9731 1.315 the above minimum distance please contact us. 110 0.4128 0.7576 0.9807 The values in brackets are for AT-5. B 3100 K 3182 K 3324 K 3435 K 4013 K 25/85 Unit: k Taping dimensions AT-5: 2500 pcs / reel 6.35 1.3 12.7 1.0 2.4 1 3.5 1 2.0 max. 2.0 max. 1.5 max. 0.5 0.05 0.8 4.0 0.3 5 0.2 12.7 0.3 Unit: mm 13 2.0 9.0 16.0 0.5 1.0 11.0 max. 3 1 12.5 min 3 max. 0.75 9.0 0.5 18.0 0.5 0.6 0.3