NTC SMD THERMISTORS NB 21 (Ni Barrier/100% Sn Termination) Chip thermistors are high quality and low cost devices especially developed processes including lead free soldering with peak temperatures up to 270C. 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 NB 21 Types IEC SIZE : 0603 DIMENSIONS: millimeters (inches) Terminations Nickel Barrier/100% Tin Marking On packaging only Climatic category 40/125/56 Operating temperature -55C to +150C * Tolerance on Rn (25C) 3% , 5%, 10%, 20% Maximum dissipation at 25C 0.07 W Thermal dissipation factor 1 mW/C Thermal time constant 4 s Resistance - Temperature characteristics: pages 29 to 33. FEATURES APPLICATIONS Fast thermal response LCD compensation Commercial, Industrial and Automotive Applications Battery packs Ni Barrier/100% Sn Termination Mobile phones Suitable for lead free reflow or wave soldering CD players AEC-Q200 based qualification Heating systems Air-conditioning systems Refrigeration Temperature control of Switch Mode Power Supplies Compensation of pressure sensors Protection of power transistors in various electronic circuits HOW TO ORDER and more NB 21 K 0 0103 M BB Type Material Code Resistance Tolerance Suffix: Packaging * NB21 (0603) K 10,000 H (3%) --: Bulk (5000 pcs/bag) (See tables (See tables page 11) J (5%) BB: Cardboard tape (180mm diam. reel, 4000 pcs/reel) pages 11) K (10%) BF: Cardboard tape (1/2 reel, 2000 pcs/reel) M (20%) BD: Cardboard tape (330mm diam. reel, 10,000 pcs/reel) * Optional tolerance, please contact factory The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available online at www.avx.com/disclaimer/ by reference and should be reviewed in full before placing any order. 9 010617NTC SMD THERMISTORS NB 21 (Ni Barrier/100% Sn Termination) TABLE OF VALUES NB 21 IEC SIZE : 0603 B (K) Rn at 25C Material at 25C Types () Code (%/C) NB 21 KC 0 470 47 NB 21 KC 0 101 100 KC 3470 5% 3.9 NB 21 KC 0 471 470 NB 21 MC 0 102 1,000 MC 3910 3% 4.4 NB 21 J 0 0472 4,700 J 3480 3% 3.9 NB 21 J 0 0502 5,000 NB 21 J 5 0682 6,800 J5 3480 3% 3.9 NB 21 J 5 0103 10,000 NB 21 K 0 0103 10,000 K 3630 3% 4.0 NB 21 K 0 0153 15,000 NB 21 L 0 0223 22,000 L 3790 3% 4.2 NB 21 M 0 0333 33,000 M 3950 3% 4.4 NB 21 M 0 0473 47,000 NB 21 M4 0 503 50,000 M4 3995 3% 4.4 NB 21 L 2 0683 68,000 L2 3805 3% 4.1 NB 21 N 0 0683 68,000 N 4080 3% 4.6 NB 21 N 5 0104 100,000 N5 4160 3% 4.7 NB 21 P 0 0154 150,000 P 4220 3% 4.7 NB 21 Q 0 0334 330,000 Q 4300 3% 4.7 NB 21 Q 0 0474 470,000 The Important Information/Disclaimer is incorporated in the catalog where these specifications came from or available online at www.avx.com/disclaimer/ by reference and should be reviewed in full before placing any order. 10 070121