12 ntc smd thermistors with nickel barrier termination nb 12 - nb 20 types nb 12 nb 20 iec size : 0805 iec size : 1206 terminations nickel barrier marking on packaging only climatic category 40/125/56 operating temperature -55? to +150? tolerance on rn (25?) 5%, ?0%, ?0% maximum dissipation at 25? 0.12 w 0.24 w thermal dissipation factor 2 mw/? 4 mw/? thermal time constant 5 s 7s chip thermistors are high quality and low cost devices especially developed for surface mounting applications. they are widely used for temperature compensation but can also achieve temperature control of printed circuits. a nickel barrier metallization provides outstanding qualities of solderability and enables this chip to meet the requirements of the most severe soldering processes. applications ?lcd compensation ?battery packs ?mobile phones ?cd players ?heating systems ?air-conditioning systems ?temperature control of switch mode power supplies ?compensation of pressure sensors ?protection of power transistors in various electronic circuits 2 (.079) 0.3 (.012) 1.25 (.049) 0.2 (.008) 0.5 (.020) ... 1.3 (.051) 0.2 (.008) min 0.2 (.008) min 3.2 (.126) 0.4 (.016) 0.2 (.008) min 0.2 (.008) min 1.6 (.063) 0.25 (.010) 0.5 (.020) ... 1.5 (.059) resistance - temperature characteristics: pages 36 to 40. how to order nb 20 type k 0 material code k (see tables page 13) 0103 resistance 10,000 ? m tolerance m (?0%) j (?%) k (?0%) ba suffix: packaging ?? bulk ba: plastic tape (180mm diam. reel) be: plastic tape (1/2 reel) bc: plastic tape (330mm diam. reel) bb: cardboard tape (180mm diam. reel) bf: cardboard tape (1/2 reel) bd: cardboard tape (330mm diam. reel) dimensions: millimeters (inches)
nb 20 iec size : 1206 types rn at 25? material b (k) at 25? ( ? ) code ( b/b ) (%/?) nb 20 mc 0 221 220 mc 3910 3% 4.4 nb 20 mc 0 102 1,000 mc 3910 3% 4.4 nb 20 j 0 0472 4,700 nb 20 j 0 0562 5,600 j 3480 3% 3.9 nb 20 j 0 0682 6,800 nb 20 j 5 0822 8,200 j5 3480 3% 3.9 nb 20 k 0 0103 10,000 k 3630 3% 4.0 nb 20 k 0 0123 12,000 nb 20 l 0 0153 15,000 nb 20 l 0 0183 18,000 l 3790 3% 4.2 nb 20 l 0 0223 22,000 nb 20 m 0 0273 27,000 nb 20 m 0 0333 33,000 m 3950 3% 4.4 nb 20 m 0 0393 39,000 nb 20 m 0 0473 47,000 nb 20 n 0 0563 56,000 nb 20 n 0 0683 68,000 n 4080 3% 4.6 nb 20 n 0 0823 82,000 nb 20 n 5 0104 100,000 n5 4160 3% 4.7 nb 20 p 0 0124 120,000 nb 20 p 0 0154 150,000 nb 20 p 0 0184 180,000 p 4220 3% 4.7 nb 20 p 0 0224 220,000 nb 20 q 0 0274 270,000 nb 20 q 0 0334 330,000 nb 20 q 0 0394 390,000 q 4300 3% 4.7 nb 20 q 0 0474 470,000 nb 20 q 0 0564 560,000 nb 20 r 0 0684 680,000 nb 20 r 0 0824 820,000 r 4400 3% 4.8 nb 20 r 0 0105 1,000,000 (1) 5% (2) 3% 13 ntc smd thermistors with nickel barrier termination nb 12 ?nb 20 nb 12 iec size : 0805 types rn at 25? material b (k) at 25? ( ? ) code ( b/b ) (%/?) nb 12 kc 0 180 18 nb 12 kc 0 220 22 nb 12 kc 0 270 27 nb 12 kc 0 330 33 nb 12 kc 0 390 39 kc 3470 5% 3.9 nb 12 kc 0 470 47 nb 12 kc 0 560 56 nb 12 kc 0 680 68 nb 12 kc 0 820 82 nb 12 kc 0 101 100 nb 12 mc 0 121 120 nb 12 mc 0 151 150 nb 12 mc 0 181 180 nb 12 mc 0 221 220 nb 12 mc 0 271 270 nb 12 mc 0 331 330 nb 12 mc 0 391 390 nb 12 mc 0 471 470 nb 12 mc 0 561 560 mc 3910 3% 4.4 nb 12 mc 0 681 680 nb 12 mc 0 821 820 nb 12 mc 0 102 1,000 nb 12 mc 0 122 1,200 nb 12 mc 0 152 1,500 nb 12 mc 0 182 1,800 nb 12 mc 0 222 2,200 nb 12 mc 0 272 2,700 nb 12 mc 0 332 3,300 nb 12 j 0 0332 3,300 nb 12 j 0 0392 3,900 j 3480 3% 3.9 nb 12 j 0 0472 4,700 nb 12 j 0 0562 5,600 nb 12 k 0 0682 6,800 nb 12 k 0 0822 8,200 k 3630 3% 4.0 nb 12 k 0 0103 10,000 nb 12 l 0 0123 12,000 l 3790 3% 4.2 nb 12 l 0 0153 15,000 nb 12 m 0 0183 18,000 nb 12 m 0 0223 22,000 m 3950 3% 4.4 nb 12 m 0 0273 27,000 nb 12 m 0 0333 33,000 nb 12 n 0 0393 39,000 nb 12 n 0 0473 47,000 n 4080 3% 4.6 nb 12 n 0 0563 56,000 nb 12 l 2 0683 68,000 l2 3805 3% 4.1 nb 12 n 5 0683 68,000 n5 4160 3% 4.7 nb 12 n 5 0823 82,000 nb 12 p 0 0104 100,000 p 4220 3% 4.7 nb 12 sc 0104 100,000 sc 4500 3% 4.8 nb 12 p 0 0124 120,000 nb 12 p 0 0154 150,000 p 4220 3% ?4.7 nb 12 p 0 0184 180,000 nb 12 q 0 0224 220,000 q 4300 3% 4.7 nb 12 q 0 0274 270,000 nb 12 r 0 0105 1,000,000 r 4400 3% 4.8 (1) 5% (2) 3% table of values
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