NTC SMD Thermistors NC 12 - NC 20 Chip thermistors are a high quality and low cost device especially developed for surface mounting applications. They are widely used for temperature compensation but can also achieve temperature control of printed circuits. Its silver - palladium - platinum metallization provides a high degree of resistance to dewetting of the terminations during soldering (typically 260C / 30 s). NC 12 IEC SIZE : 0805 Types NC 20 IEC SIZE : 1206 3.2 (.126) 0.4 (.016) 2 (.079) 0.3 (.012) DIMENSIONS: millimeters (inches) 1.6 (.063) 0.25 (.010) 1.25 (.049) 0.2 (.008) 0.5 (.020) ... 1.5 (.059) 0.5 (.020) ... 1.3 (.051) 0.2 (.008) min 0.2 (.008) min 0.2 (.008) min Terminations 0.2 (.008) min Silver - palladium - platinum metallization Marking On packaging only Climatic category 40/125/56 Operating temperature -55C to +150C Tolerance on Rn (25C) 5%, 10%, 20% Maximum dissipation at 25C Thermal dissipation factor Thermal time constant 0.12 W 0.24 W 2 mW/C 4 mW/C 5s 7s Resistance - Temperature characteristics: pages 36 to 40. 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 HOW TO ORDER 10 NC 20 K0 0103 M BA Type Material Code K (See tables pages 11, 36-40) Resistance 10,000 Tolerance M (20%) J (5%) K (10%) 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) NTC SMD Thermistors NC 12 - NC 20 TABLE OF VALUES NC 20 IEC SIZE : 1206 NC 12 IEC SIZE : 0805 Types Rn at 25C () NC 12 KC 0 180 NC 12 KC 0 220 NC 12 KC 0 270 NC 12 KC 0 330 NC 12 KC 0 390 NC 12 KC 0 470 NC 12 KC 0 560 NC 12 KC 0 680 NC 12 KC 0 820 NC 12 KC 0 101 NC 12 MC 0 121 NC 12 MC 0 151 NC 12 MC 0 181 NC 12 MC 0 221 NC 12 MC 0 271 NC 12 MC 0 331 NC 12 MC 0 391 NC 12 MC 0 471 NC 12 MC 0 561 NC 12 MC 0 681 NC 12 MC 0 821 NC 12 MC 0 102 NC 12 MC 0 122 NC 12 MC 0 152 NC 12 MC 0 182 NC 12 MC 0 222 NC 12 MC 0 272 NC 12 MC 0 332 NC 12 J 0 0332 NC 12 J 0 0392 NC 12 J 0 0472 NC 12 J 0 0562 NC 12 K 0 0682 NC 12 K 0 0822 NC 12 K 0 0103 NC 12 K 0 0123 NC 12 L 0 0153 NC 12 L 0 0183 NC 12 M 0 0223 NC 12 M 0 0273 NC 12 M 0 0333 NC 12 M 0 0393 NC 12 N 0 0473 NC 12 N 0 0563 NC 12 L 2 0683 NC 12 N 0 0823 NC 12 P 0 0104 NC 12 P 0 0124 NC 12 P 0 0154 NC 12 P 0 0184 NC 12 Q 0 0224 18 22 27 33 39 47 56 68 82 100 120 150 180 220 270 330 390 470 560 680 820 1,000 1,200 1,500 1,800 2,200 2,700 3,300 3,300 3,900 4,700 5,600 6,800 8,200 10,000 12,000 15,000 18,000 22,000 27,000 33,000 39,000 47,000 56,000 68,000 82,000 100,000 120,000 150,000 180,000 220,000 Material Code KC MC B (K) (B/B (1) 5% (2) 3% 3470 5% 3910 3% ) at 25C (%/C) - 3.9 - 4.4 J 3480 3% - 3.9 K 3630 3% - 4.0 L 3790 3% - 4.2 M 3950 3% - 4.4 N 4080 3% - 4.6 L2 N 3805 3% 4080 3% - 4.1 - 4.6 P 4220 3% - 4.7 Q 4300 3% -4.7 Types Rn at 25C () NC 20 KC 0 100 10 NC 20 KC 0 120 12 NC 20 KC 0 150 15 NC 20 KC 0 180 18 NC 20 KC 0 220 22 NC 20 KC 0 270 27 NC 20 KC 0 330 33 NC 20 KC 0 390 39 NC 20 KC 0 470 47 NC 20 KC 0 560 56 NC 20 KC 0 680 68 NC 20 KC 0 820 82 NC 20 KC 0 101 100 NC 20 MC 0 121 120 NC 20 MC 0 151 150 NC 20 MC 0 181 180 NC 20 MC 0 221 220 NC 20 MC 0 271 270 NC 20 MC 0 331 330 NC 20 MC 0 391 390 NC 20 MC 0 471 470 NC 20 MC 0 561 560 NC 20 MC 0 681 680 NC 20 MC 0 821 820 NC 20 MC 0 102 1,000 NC 20 MC 0 122 1,200 NC 20 MC 0 152 1,500 NC 20 I 0 0182 1,800 NC 20 I 0 0222 2,200 NC 20 I 0 0272 2,700 NC 20 I 0 0332 3,300 NC 20 J 0 0392 3,900 NC 20 J 0 0472 4,700 NC 20 J 0 0562 5,600 NC 20 J 0 0682 6,800 NC 20 K 0 0822 8,200 NC 20 K 0 0103 10,000 NC 20 K 0 0123 12,000 NC 20 K 0 0153 15,000 NC 20 L 0 0183 18,000 NC 20 L 0 0223 22,000 NC 20 M 0 0273 27,000 NC 20 M 0 0333 33,000 NC 20 M 0 0393 39,000 NC 20 M 0 0473 47,000 NC 20 N 0 0563 56,000 NC 20 N 0 0683 68,000 NC 20 N 0 0823 82,000 NC 20 N 0 0104 100,000 NC 20 P 0 0124 120,000 NC 20 P 0 0154 150,000 NC 20 P 0 0184 180,000 NC 20 P 0 0224 220,000 NC 20 Q 0 0274 270,000 NC 20 Q 0 0334 330,000 NC 20 Q 0 0394 390,000 NC 20 Q 0 0474 470,000 NC 20 R 0 0564 560,000 NC 20 R 0 0684 680,000 NC 20 R 0 0824 820,000 NC 20 R 0 0105 1,000,000 Material Code B (K) (B/B (1) 5% (2) 3% ) at 25C (%/C) KC 3470 5% - 3.9 MC 3910 3% - 4.4 I 3250 5% - 3.7 J 3480 3% - 3.9 K 3630 3% - 4.0 L 3790 3% - 4.2 M 3950 3% - 4.4 N 4080 3% - 4.6 P 4220 3% - 4.7 Q 4300 3% - 4.7 R 4400 3% - 4.8 11