Temperature sensor SMT Ring Terminal Probe ETP-RT* * * * * Temperature range -40 to +125C Available in a range of sizes Resistance values from 2.2 - 100 k Custom designs available Higher temperature range available Applications * Commercial aircraft * Power and utilities * Industrial equipment * Computers * Transit * Home appliances * HVAC * Calibration and instrumentation Ordering information for standard stock model: ETP - RT - 4 - 24 - 10K3A1B Stock model number: (A) (L) (T) A L T 11.73 max. - Thermistor type - Probe cable length - Probe thread size L L = 240 mm +/- 5 mm 5 mm +/- 1 mm 4 mm +/- 0.1 mm AA = M4 Hole Technical parameters for stock model Materials Unit Value Leads and insulation 28AWG Solid silver plated copper leads with white Kynar insulation Ohms 10,000 Probe material Tin plated brass Resistance tolerance from 0..70C C +/- 0.2 Beta value 25/85 K 3976 Tolerance on Beta value 25/85 % +/- 0.5 Dissipation constant in still air mW/C 2 C -40 to +125 W/(m.K) 1.7 Nominal resistance at +25C Operating temperature Epoxy thermal conductivity Features * Cost effective - off the shelf model * Solid tin plated lead wires * Stock model - reduced lead times * Improved potting epoxy has outstanding thermal conductivity for faster response times Ordering information for custom designs: Use the information below to build up a custom probe design. A L T Probe thread size Order Code A = 5 6 7 8 x M5 M6 M7 M8 Optional thread size Order Code L = 5 10 15 20 23 25 30 35 40 45 x Length in mm +/- 5 mm 50 100 150 200 230 250 300 350 400 450 Custom length Thread size in mm Probe cable length Thermistor type Order Code T = All thermistor types available: Insert details as required Temp. C Ohms Temp. C Ohms Temp. C Ohms Temp. C Ohms -40 336,052 3 28,054 46 4,200.0 89 944.7 -39 314,512 4 26,687 47 4,040.2 90 916.0 -38 294,487 5 25,395 48 3,887.4 91 888.3 -37 275,863 6 24,172 49 3,741.1 92 861.5 -36 258,533 7 23,016 50 3,601.1 93 835.7 -35 242,399 8 21,921 51 3,467.1 94 810.8 -34 227,373 9 20,884 52 3,338.7 95 786.8 -33 213,371 10 19,903 53 3,215.8 96 763.6 -32 200,318 11 18,973 54 3,098.0 97 741.2 -31 188,144 12 18,092 55 2,985.2 98 719.5 -30 176,786 13 17,257 56 2,877.0 99 698.6 -29 166,183 14 16,465 57 2,773.3 100 678.4 -28 156,280 15 15,714 58 2,673.9 101 658.9 -27 147,029 16 15,001 59 2,578.6 102 640.0 -26 138,382 17 14,324 60 2,487.1 103 621.8 -25 130,296 18 13,682 61 2,399.4 104 604.1 -24 122,732 19 13,073 62 2,315.2 105 587.1 -23 115,653 20 12,493 63 2,234.4 106 570.6 -22 109,025 21 11,943 64 2,156.8 107 554.6 -21 102,817 22 11,420 65 2,082.3 108 539.2 -20 97,000 23 10,923 66 2,010.8 109 524.3 -19 91,547 24 10,450 67 1,942.1 110 509.8 -18 86,433 25 10,000 68 1,876.0 111 495.8 -17 81,636 26 9,572.0 69 1,812.6 112 482.3 -16 77,134 27 9,164.7 70 1751.6 113 469.2 -15 72,907 28 8,777.0 71 1,693.0 114 456.5 -14 68,937 29 8,407.8 72 1,636.6 115 444.2 -13 65,206 30 8,056.1 73 1,582.4 116 432.3 -12 61,700 31 7,721.0 74 1,530.2 117 420.8 -11 58,403 32 7,401.7 75 1,480.1 118 409.6 -10 55,301 33 7,097.3 76 1,431.8 119 398.8 -9 52,383 34 6,807.1 77 1,385.3 120 388.3 -8 49,636 35 6,530.3 78 1,340.6 121 378.2 -7 47,049 36 6,266.3 79 1,297.5 122 368.3 -6 44,612 37 6,014.3 80 1,256.1 123 358.8 -5 42,315 38 5,773.8 81 1,216.1 124 349.5 -4 40,150 39 5,544.3 82 1,177.7 125 340.6 -3 38,109 40 5,325.0 83 1,140.6 -2 36,183 41 5,115.7 84 1,104.9 -1 34,366 42 4,915.6 85 1,070.4 0 32650 43 4,724.5 86 1,037.3 1 31,030 44 4,541.7 87 1,005.3 2 29,500 45 4,367.1 88 974.4 Variohm EuroSensor - Williams` Barn - Tiffield Road -Towcester - Northants -NN12 6HP - UK sales@variohm.com * www.variohm.com * +44 (0) 1327 351004 Subject to change without notice ETP-RT - English - 08/12 Resistance v. temperature table for 10K3A1B Thermistor