type ntc series a range of ntc chip thermistors offering high thermal sensitivity. suitable for temperature compen- sating circuits and other applica- tions requiring a resistance that varies according to ambient temperature. key features two package sizes suited to automatic pick and place components supplied unmarked -55c to +125c temperature range characteristics - electrical ntc0603 ntc0805 rated power max (mw) 63 125 optimum working dissipation (mw) 0.4 1 resistance range (ohms) min 4k7 100 max 150k 150k tolerance on resistance (%) 5 10 5 10 code letter j k j k selection series see table ? constant see table tolerance on ? (%) 5 (3% available on request) thermal time constant (sec) 24 thermal dissipation constant (mw/c) 1.2 1.5 operation temp. range (c) -55 to +125 resistance to soldering heat 2% on both r25 and b typical performance graph dimensions style l w t a b ntc0603 1.6 0.15 0.8 0.15 0.5 0.1 0.3 0.3 ntc0805 2.0 1.25 0.5 0.4 0.4 l a w t b -40 -20 0 20 40 60 80 100 120125 temperature (c) 10,000,000 1,000,000 100,000 10,000 1,000 100 10 1 resistance (ohms) 25 literature no. 1773258 issued: 02-08 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. tycoelectronics.com passives.tycoelectronics.com negative temperature coefficient chip thermistors type ntc series
resistance value / ? constant resistance value ? constant @ 25c ntc0603 ntc0805 100 150 220 330 470 680 1k0 1k5 2k0 2k2 2k5 3k0 3k3 4k7 5k0 6k8 10k 15k 20k 22k 30k 33k 47k 50k 68k 100k 150k - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3500 3500 3500 3700 3850 3950 3950 3950 3950 4100 3950 4100 4100 4100 2750 2750 2750 2750 2750 2750 2750 3000 3000 3000 3000 3450 3450 3450 3450 3850 4100 4100 4100 4100 4100 4100 4100 3950 4100 4100 4100 40 60 80 100 120 125 ambient temperature (c) 100 80 60 40 20 0 percent rated power derating mounting the thermistors are suitable for automatic placement. marking the components are supplied unmarked. packaging tape/reel - 5k pcs/reel. power rating and maximum operating temperature the power rating is specified at an ambient temperature of 25c. under these conditions, the temperature of the thermistor element reaches its permitted maximum temperature of 125c. the thermistor should be derated linearly from 100% at +55c to zero at 125c as shown in the derating curve. literature no. 1773258 issued: 02-08 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. tycoelectronics.com passives.tycoelectronics.com negative temperature coefficient chip thermistors type ntc series
change of resistance with temperature, ? and tolerance r = 1k0 5%, ? = 2750 5% r = 100k 5%, ? = 4100 5% temp (c) r min r nom r max r min r nom r max -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 23,619 18,060 13,973 10,931 8,639 6,895 5,552 4,510 3,693 3,074 2,532 2,118 1,784 1,511 1,288 1,103 950 822 715 624 548 482 426 378 337 301 270 243 219 198 180 163 149 136 125 114 105 29,443 22,198 16,944 13,085 10,214 8,055 6,414 5,153 4,175 3,410 2,806 2,326 1,941 1,630 1,377 1,170 1,000 859 741 643 560 490 430 379 336 298 266 238 213 192 173 157 142 129 118 108 99 36,612 27,216 20,496 15,624 12,047 9,388 7,390 5,873 4,709 3,807 3,103 2,548 2,107 1,754 1,469 1,239 1,050 895 767 660 571 496 433 380 334 295 261 232 207 186 167 150 135 122 111 101 92 11,437,698 7,666,457 5,229,571 3,626,293 2,553,502 1,824,208 1,320,987 968,858 719,179 539,923 409,704 314,048 243,038 189,795 149,493 118,711 95,000 76,585 62,174 50,811 41,789 34,578 28,776 24,081 20,258 17,128 14,551 12,420 10,647 9,167 7,924 6,877 5,990 5,237 4,594 4,044 3,571 15,492,485 10,167,934 6,797,677 4,623,690 3,196,281 2,243,342 1,597,136 1,152,437 842,136 622,766 465,752 352,049 268,796 207,195 161,161 126,434 100,000 79,707 64,002 51,752 42,128 34,512 28,445 23,582 19,658 16,475 13,877 11,746 9,988 8,532 7,319 6,304 5,452 4,733 4,123 3,605 3,162 20,932,275 13,451,901 8,813,894 5,880,679 3,990,860 2,751,881 1,926,187 1,367,374 983,650 716,523 528,143 393,661 296,539 225,625 173,305 134,321 105,000 82,749 65,719 52,579 42,363 34,360 28,048 23,035 19,029 15,807 13,201 11,081 9.347 7,921 6,743 5,765 4,950 4,266 3,691 3,206 2,794 how to order ntc 0603 j 2k0 common part 0603 0805 size j - 5% tolerance value ntc - negative temperature coefficient chip thermistor see table on previous page literature no. 1773258 issued: 02-08 dimensions are shown for reference purposes only. dimensions are in millimetres unless otherwise specified. specifications subject to change. tycoelectronics.com passives.tycoelectronics.com negative temperature coefficient chip thermistors type ntc series
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