ntc thermistor ttf type insulation film type for temperature sensing/compen sation thinking electronic industrial co., ltd. 1 www.thinking.com.tw 2008.05 features 1. rohs compliant 2. radial leaded insulation film coated 3. -40 ~ +100 operating temperature range 4. agency recognition: ul /cul recommended applications 1. home appliances (air conditioner, refrigerator, electric fan, electric cooker, washing machine, microwave oven, drinking machine, ctv, radio.) 2. computers 3. battery pack part number code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 structure and dimensions product type ttf thinking ntc thermistor ttf type size 3 f 3mm zero power resistance at 25 (r 25 ) 102 1k 103 10k 473 47k tolerance of r 25 f 1% g 2% h 3% j 5% k 10% b value first two digits 30 31 32 U 40 41 U 30 31 32 U 40 41 U b value last two digits 0 a 1 b 2 U h 8 j 9 k 00 05 10 15 20 U 75 80 85 90 95 tolerance of b value 1 1% 2 2% 3 3% optional suffix y rohs compliant appearance a l:25mm solder part 5mm b l:50mm solder part 5mm definition of b value a b 25/85 b b 25/50 3.6 0.5 2 1 5 1 25 1 0.5 0.5 0.035 0.15 0.02 1.8 0.1 0.6(max.) slipped film: 1.0max (unit:mm) 0.17 0.02 ntc thermistor
ntc thermistor ttf type insulation film type for temperature sensing/compen sation thinking electronic industrial co., ltd. 2 www.thinking.com.tw 2008.05 electrical characteristics safety approvals zero power resistance at 25c tolerance of r 25 b 25/85 value tolerance of b value max. power rating at 25c dissipation factor thermal time constant operating temperature range part no. r 25 (k ) ( %) (k) (%) p max (mw) (mw/c) (sec.) t l ~t u (c) ul cul ttf3a502 34d* 5 ? ? ttf3a103 34d* 10 ? ? ttf3a203 34d* 20 ? ? ttf3a303 34d* 30 ? ? ttf3a473 34d* 47 3435 ? ? ttf3a473 39h* 47 3975 ? ? ttf3a473 419* 47 4190 ? ? ttf3a503 34d* 50 ? ? ttf3a104 34d* 100 3435 ? ? ttf3a104 39h* 100 3975 ? ? ttf3a224 405* 220 1 2 3 5 10 4050 1 2 3 3.5 approx. 0.7 approx. 5 -40 ~ +100 ? ? note 1: = tolerance of r 25 note 2: * = tolerance of b value power derating curve 100 0 25 t u 0 t l ambient temperature ( ) max power rating (%) t u maximum operating temperature ( ) t l minimum operating temperature ( ) for example ambient temperature(ta)=55 maximum operating temperature(t u ) 100 p ta =(t u -ta)/(t u -25) pmax 60% pmax
ntc thermistor ttf type insulation film type for temperature sensing/compen sation thinking electronic industrial co., ltd. 3 www.thinking.com.tw 2008.05 0.1 1 10 100 1000 10000 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 90 100 r-t characteristic curves (representative) soldering recommendation wave soldering profile resistance(k ? ) temperature ( ) ttf3a502 34d*~ ttf3a224 405* ttf3a224 405* ttf3a104 34d* ttf3a104 39h* ttf3a473 34d* ttf3a473 39h* ttf3a303 34d ttf3a203 34d ttf3a103 34d* ttf3a502 34d* temperature 13020 260 max tamb cooling time soldering preheating 30~90 sec. 1 sec. 10 sec. note 1 note 2 note 3 note 1: (1~3 )/sec note 2: approx. 200 /sec note 3: 5 /sec. (max)
ntc thermistor ttf type insulation film type for temperature sensing/compen sation thinking electronic industrial co., ltd. 4 www.thinking.com.tw 2008.05 recommended reworking conditions with soldering iro n item conditions temperature of soldering iron-tip 360 (max.) soldering time 3 sec (max.) distance from coating ? can't touch film bottom reliability item standard test conditions / methods specifications tensile strength of terminals iec60068-2-21 gradually applying the force specified and keeping t he unit fixed for 101 sec.. terminal cross-sectional area force (mm2) (kg) 0.07 ntc thermistor ttf type insulation film type for temperature sensing/compen sation thinking electronic industrial co., ltd. 5 www.thinking.com.tw 2008.05 packaging bulk packing : 500 pcs/ bag storage conditions of products storage conditions 1.storage temperature -10 ~+40 2.relative humidity Q 75%rh 3. keep away from corrosive atmosphere and sunlight . period of storage 1 year
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