SURFACE MOUNT TYPE THERMISTOR HT THERMISTOR HT thermistors are an entirely new type of thermistor for surface mounting (by reflow soldering) and were acquired from breakthrough advancements in technology. Our HT thermistors are adapted metal electrodes packaged in a resin mold, unlike conventional chip themistors, and can offer 62% tolerance for a resistance value at 258C. HT series (SMD Thermistor) is not only compactsurface mounting type but also highly accurate as well as highly reliable. Part number 103 HT -TP - Taping HTF only Tolerance of R25 1P : 61% 2P : 62% Shape Rated zero-power resistance at 258C 103 : 10kV HT Epoxy resin 42 Alloy 103 2.6560.2 3.060.3 103 0.3 0.8 0.960.15 1.760.5 0.260.05 (1.3) 2.060.1 4.060.1 Minimum quantity:3000pcs/reel Specifications Part No. R25*1 B value*2 302HT(F) 502HT(F) 103HT(F) 203HT(F) 303HT(F) 503HT(F) 104HT(F) 103HTS 503HTS 104HTS 3.0kV62% 5.0kV62% 10.0kV62% 20.0kV62% 30.0kV62% 50.0kV62% 100.0kV62% 10.0kV62% 50.0kV62% 100.0kV62% 3860K61% 3860K61% 3435K61% 3760K61% 3760K61% 4055K61% 4390K61% 3435K61% 4055K61% 4390K61% *12 *3 * 060.05 4.060.1 1.560.1 Taping 2.060.1 4.060.1 1.4560.1 0.360.15 2.560.2 (2.85) 9.360.1 3.560.1 2.060.1 4.060.1 1.960.1 0.260.05 0.1760.1 1.160.15 4.060.1 f1.5560.05 8.060.2 4.460.1 2.060.1 1.760.15 1.7560.1 Taping 1.5560.1 4.060.1 1.560.1 0.260.05 Epoxy resin 103 Epoxy resin 1.160.15 1.2560.15 16.060.2 0.660.2/20 0.0260.05 3.8060.15 (1.5) Mark 0.6 8.6560.5 2.6560.2 Taping 0.8 0.660.1 1.7560.1 Solder plated lead wires 42 Alloy 3.560.1 1.7 1.660.15 Dimensions 1.660.15 5.2560.1 Mark Dissipation factor (mW/ 8C) 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 Thermal time constant (s)*3 8.0 8.0 8.0 8.0 8.0 8.0 8.0 6.0 6.0 6.0 Rated power at 258C (mW) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 5.0 8.060.2 Dimensions Mark HTS HTF Dimensions Unit (mm) Operating temp. range (8C) 250;125 250;125 250;100 250;125 250;125 250;125 250;125 250;100 250;125 250;125 R25 : Rated zero-power resistance value at 258C, 61% and 3% are also available. B value : determined by rated zero-power resistance at 258C and 858C. Time when thermistor temperature reaches 63.2% of the temperature difference. The value is measured in the air. Resistance-Temperature Temperature (8C) 302HT 182.1 250 93.35 240 49.85 230 27.75 220 16.02 210 9.541 0 5.876 10 3.728 20 2.431 30 1.623 40 502HT 303.4 155.6 83.09 46.25 26.70 15.90 9.793 6.214 4.051 2.705 103HT 367.7 204.7 118.5 71.02 43.67 27.70 18.07 12.11 8.301 5.811 Type 203HT 1026 540.5 296.7 169.2 99.85 60.87 38.21 24.66 16.31 11.04 303HT 1539 810.8 445.1 253.8 149.8 91.31 57.32 36.99 24.47 16.56 503HT 3135 1602 855.0 474.4 272.7 161.9 99.13 62.38 40.24 26.58 104HT 9584 4572 2282 1191 647.2 365.0 212.5 127.7 78.88 50.03 Temperature (8C) 50 60 70 80 90 100 110 120 125 302HT 1.109 0.7744 0.5513 0.4000 0.2951 0.2210 0.1680 0.1295 0.1142 502HT 1.849 1.291 0.9189 0.6667 0.4918 0.3683 0.2800 0.2158 0.1903 103HT 4.147 3.011 2.224 1.668 1.267 0.9753 Type 203HT 7.632 5.380 3.861 2.815 2.083 1.564 1.190 0.9159 0.8067 303HT 11.45 8.070 5.792 4.223 3.125 2.346 1.785 1.374 1.210 503HT 17.93 12.33 8.588 6.064 4.338 3.142 2.302 1.705 1.472 104HT 32.51 21.61 14.66 10.13 7.135 5.111 3.720 2.746 2.371 Unit (kV) 10