1K7A1 Series V Thermistor • • • • Thermally conductive epoxy coating Ø 2.4 mm Maximum Diameter 32 AWG Alloy 180 Leads RoHS Compliant DESCRIPTION The BetaCURVE Chip is Soldered to 32 AWG Alloy 180 Leads and Encapsulated in Stycast Epoxy Resin FEATURES APPLICATIONS • Interchangeability • Proven Stability and Reliability • Rapid time response • Alloy lead wires for reduced thermal conductivity ("stem effect") Thermally Conductive Epoxy Coating Temperature range -40 ºC to +125ºC • • • • • Temperature sensing, control and compensation Suitable for measurement applications at the lower temperature ranges Assembly into probes used in low temperature applications PERFORMANCE SPECS Parameters Resistance @ +25°C Resistance tolerance from 0°C to +25°C Alpha Value @ 25°C Beta Value 25/85 Tolerance on Beta Value 25/85 Time response in Liquids Dissipation Constant in still air Model Number 1K7A1 Series V Rev 00 Units Ohms °C %/°C K % Seconds mW/°C www.meas-spec.com 1/3 Value 1000 0.2 3.87 3499 0.5 <1 0.75 Date 15/08/08 1K7A1 Series V Thermistor MECHANICAL DETAILS Dimensions A 76 ± 2mm Note 1 Note 2 B 2.4mm Max 32 AWG Solid Alloy 180 Leads Black Stycast 2850ft Epoxy RESISTANCE V TEMPERATURE TABLE o Temp. C -40 -39 -38 -37 -36 -35 -34 -33 -32 -31 -30 -29 -28 -27 -26 -25 -24 -23 -22 -21 -20 -19 Ohms 21681 20465 19324 18255 17251 16308 15422 14591 13809 13073 12382 11731 11118 10541 9998 9485 9002 8547 8117 7712 7329 6967 Model Number 1K7A1 Series V Rev 00 o Temp. C -18 -17 -16 -15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 o Ohms Temp. C 6626 6303 5998 5709 5436 5178 4933 4702 4482 4275 4078 3891 3714 3546 3386 3235 3091 2955 2825 2702 2585 2473 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 www.meas-spec.com 2/3 Ohms 2367 2266 2170 2079 1992 1909 1830 1755 1683 1615 1549 1487 1428 1371 1317 1265 1216 1169 1124 1081 1039 1000 o Temp. C 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 Ohms 962 926 892 859 827 797 768 740 713 688 663 640 617 595 575 555 536 517 500 483 466 451 Date 15/08/08 1K7A1 Series V Thermistor 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 436 421 407 394 381 369 357 345 334 324 313 304 294 285 276 268 259 252 244 237 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 229 223 216 210 203 198 192 186 181 176 171 166 161 157 152 148 144 140 136 132 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 129 125 122 119 116 113 110 107 104 101 99 96 94 91 89 87 85 82 80 78 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 77 75 73 71 69 68 66 65 63 62 60 59 57 56 55 53 52 51 ORDERING INFORMATION Part Number 1K7A1 Description Series V Thermistor Ω @25ºC 1000 MOQ 1,000* * For quantities less than Minimum Order Quantity – Contact Distribution NORTH AMERICA EUROPE Measurement Specialties, Inc. 910 Turnpike Road Shrewsbury, MA 01545 Tel: 1-508-842-0516 Fax: 1-508-842-0342 Measurement Specialties, Inc Ballybrit Business Park Galway Ireland Tel: +353-91-753238 Fax: +353-91-770789 Sales email: Sales email: [email protected] [email protected] ASIA Measurement Specialties (China) Ltd. No. 26 Langshan Road Shenzhen High-Tech Park (North) Nanshan District, Shenzhen 51807 China Tel: +86 (0) 755 33305088 Fax: +86 (0) 755 33305099 Sales email: [email protected] The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for inaccuracies. Furthermore, this information does not convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice to any product herein. Measurement Specialties, Inc. makes no warranty, representation or guarantee regarding the suitability of its product for any particular purpose, nor does Measurement Specialties, Inc. assume any liability arising out of the application or use of any product or circuit and specifically disclaims any and all liability, including without limitation consequential or incidental damages. Typical parameters can and do vary in different applications. All operating parameters must be validated for each customer application by customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. Model Number 1K7A1 Series V Rev 00 www.meas-spec.com 3/3 Date 15/08/08