chip ntc thermistor fenghua thermistor components branch company 1 features miniature size ,no lead ,ideal for high density smt installation low resistance and high b-value series superior solderability and resistance to soldering heat ideal for wave or re-flow soldering glass coating , high precision , small resistance drift environment friendliness. applications temperature compensation in iclcdtransistorcrystal oscillator in devices such as mobile communications equipment temperature sensing in rechargeable batteries temperature sensor for cpu temperature compensation in a variety of other circuits, such as advanced stereowireless earphone and etc. part number cmf x xxx x xxxx x x x x product codechip ntc thermistor size code code d a b c sizeinches 0402 0603 0805 1206 rated zero-power resistance(r 25 ) unit: the first two are significant figure of resistance and the third one expresses number of following zeros. tolerance of r 25 (%) code e f g h j k x tolerance of r 25 0.5 1.0 2.0 3.0 5.0 10.0 special tolerance b value constant (25/50) tolerance of b value(%) code e f g h j x tolerance of b value 0.5 1.0 2.0 3.0 5.0 specific tolerance b value temperature code code a b c d e f g h m n t 1 /t 2 25/50 25/ 85 0/25 0/50 0/100 0/80 25/100 -18/25 -20/25 5/25 termination code: nnickel barrier
chip ntc thermistor packaging style code: ttape & reelbbulk dimensions m fenghua thermistor components branch company 2 l t w unit inches(mm) size l length w width t thickness m termination width 0402 1005 .04.006 (1.00.15) .02.004 (0. 50.10) .024 max (0.60 max) .004 min (0.10 min) 0603 1608 .063.006 (1.60.15) .031.006 (0.80.15) .037 max (0.95 max) .004 min (0.10 min) 0805 2012 .08.008 (2.00.20) .05.008 (1.250.20) .05 max (1.25 max) .006 min (0.15 min) 1206 3216 .126.008 (3.20.20) .063.008 (1.60.20) .063 max (1.60 max) .008 min (0.20 min) product series 0402 series part no. resistance at 25 k? b-constant 25/50k cmfd1023000 1.0 3000 cmfd2223200 2.2 3200 cmfd3323200 3.3 3200 cmfd4723400 4.7 3400 cmfd4724000 4.7 4000 cmfd6823400 6.8 3400 cmfd1033400 10 3400 cmfd1033650 10 3650 cmfd1033900 10 3900
chip ntc thermistor fenghua thermistor components branch company 3 cmfd1533900 15 3900 cmfd2233900 22 3900 cmfd2234050 22 4050 cmfd3333950 33 3950 cmfd3334150 33 4150 cmfd4734050 47 4050 cmfd4734150 47 4150 cmfd6834100 68 4100 cmfd6834200 68 4200 cmfd1044200 100 4200 cmfd2244300 220 4300 060308051206 series part no. resistance at 25 k? b-constant 25/50k cmf2213650 0.22 3650 cmf3313650 0.33 3650 cmf4713650 0.47 3650 cmf6813650 0.68 3650 cmf1023650 1.0 3650 cmf2223650 2.2 3650 cmf2224050 2.2 4050 cmf3323650 3.3 3650 cmf3324050 3.3 4050 cmf4723650 4.7 3650 cmf4724050 4.7 4050 cmf6823650 6.8 3650 cmf6824050 6.8 4050 cmf1033500 10 3500 cmf1033650 10 3650
chip ntc thermistor fenghua thermistor components branch company 4 cmf1033900 10 3900 cmf1533900 15 3900 cmf2233950 22 3950 cmf2234050 22 4050 cmf3334000 33 4000 cmf3334150 33 4150 cmf4734050 47 4050 cmf4734150 47 4150 cmf6834100 68 4100 cmf6834240 68 4240 cmf1044300 100 4300 cmf2244450 220 4450 cmf3344500 330 4500 cmf1054500 1000 4500 cmf2254500 2200 4500 cmf3354600 3300 4600 cmf4754650 4700 4650 notice size code(d0402 denote a0603, b0805, c1206) resistance tolerancef1%,g2%, h3%,j5%,k10% : tolerance of b-constant (f1%,g2%, h3%,j5%) operating temperature range -40~+125 max rated power0402 series 100mw,0603 series300mw,08051206 series 350mw dissipation factor(in still air 25)0402 series 1mw/, 0603 series 3mw/, 08051206 series 3.5mw/ thermal time constant(in still air) 10sec products can be offered not including pb and other harmful substances the above-mentioned products can be made into the radial and axial resin coating specification special products are available
chip ntc thermistor fenghua thermistor components branch company 5 reliability test and test method no. item criteria test condition 1 high temperature test without loading1253 in air for 1000 +48/-0 hours 2 low temperature test without loading-403 in air for 1000 +48/-0 hours 3 humidity test without loading602 90~95%rh in air for 1000 +48/-0 hours 4 heat cycle test 5 cycles of following sequence without loading. step temp() time(min) 1 -40 +0/-3 30 2 room temp. 10~15 3 +125 +0/-3 30 4 room temp. 10~15 5 high temperature load test 852 in airwith max. operating current for 1000 +48/-0 hrs.. 6 vibration r25 change shall be less than3% b-constant (b25/50) change shall be less tha n 2% no visible damage frequency:10~55~10hz amplitude:1.5mm vibrated for a period of 2hrs. in xyz therr directions each other ,totbl 6hrs.. 7 resistance to soldering heat m inimum 75% of the whole electrode surfbce shbll be covered with solder environment friendliness soldering temp.:2855 immersion time: 100.5sec. pre. temp.: 1505 pre. time.: 60sec. other product soldering temp.:2605 immersion time: 100.5sec. pre. temp.: 1505 pre. time.: 3min. 8 solderability m inimum 95% of the whole electrode surfbce shbll be covered with solder environment friendliness soldering temp.:2555 immersion time: 50.5sec. pre. temp.: 1205 pre. time.: 60sec other product soldering temp.:2355 immersion time: 50.5sec. pre. temp.: 1205 pre. time.: 60sec 9 adhesive strength of electrode no peeling of the electrodes solder ntc thermistor on the glass epoxy pcb, and apply 5n of force
chip ntc thermistor packaging packaging stylebulk and taping carrier configuration 1 paper tape (mm) fig.1 2polystyrene tape (mm) fig.2 fenghua thermistor components branch company
chip ntc thermistor fig.3 3reel dimensions fig.4 fenghua thermistor components branch company 7
chip ntc thermistor fenghua thermistor components branch company 8 dimensions:mm a 1782(7.000.079) b 601(2.360.039) c 1300.5(5.120.020) d 2100.8(8.270.031) e 200.5(0.790.020) w 10.01.0(0.390.039) t 2.01.0(0.0790.020) r 1.0(0.039) reel material plastics 4packaging quantity inch(mm) symbol 0402(1005) 0603(1608) 0805(2012) 1206(3216) a .025(0.62) .048( 1.10) .057(1.45) .075(1.90) b .044(1.12) .070(1.80) .091(2.30) .138(3.50) t .024(0.60) .031(0.80) .033(0.85) .049(1.25) .033(0.85) .043(1.10) max .025(0.65) .037(0.95) .037(0.95) .059(1.50) .037(0.95) .053(1.37) fig no 1 1 1 2 1 2 pcs/reel 10000 4000 4000 3000 4000 3000 5big packaging box packaging second packaging qubntity 5 reels. quantity 12 boxes. max 20000pcs max 300000pcs
chip ntc thermistor fenghua thermistor components branch company 9
chip ntc thermistor fenghua thermistor components branch company 10
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