lt73v linear positive temperature coefficient flat chip resistors (for automotive) specifcations given herein may be changed at any time without prior notice. please confrm technical specifcations before you order and/or use. 12/19/12 186 koa speer electronics, inc . ? 199 bolivar drive ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com dimensions and construction applications and ratings features ? smd thin film resistors with thermo-perceptivity ? various tcrs +150 - +450010 ?6 /k are available ? operating temperature range -155c rated ambient temperature: 85c ? the evaluation based on aec-q200 has been examined ? coating color: orange ? products meet eu rohs requirements l c c w t d protective coating resistive film inner electrode ni plating solder plating ceramic substrate eu 2b td 102 0900 t j lt73v type power rating 2a:0.1w 2b:0.125w nominal resistance 3 digits termination material t:sn resistance tolerance g:2% j :5% taping td:4mm pitch paper te:4mm pitch plastic embossed t.c.r. (10 ?6 /k) 4 digits ordering information type dimensions inches (mm) l w c d t 2a (0805) .079.008 (2.00.2) .049.008 (1.250.2) .016.008 (0.40.2) .012 (0.3 ) .020.004 (0.50.1) 2b (1206) .126.008 (3.20.2) .063.008 (1.60.2) .020.012 (0.50.3) .016 (0.4 ) .024.004 (0.60.1) +0.2 ?0.1 +.008 ?.004 +0.2 ?0.1 +.008 ?.004 type power rating max. working voltage max. overload voltage thermal time constant* thermal dissipation constant* rated ambient temperature operating temperature range taping & qty/reel (pcs) td te 2a 0.1w 50v 100v 1.0s 1.37mw/c +85c ?55c - +155c 5,000 4,000 2b 0.125w 75v 150v 1.5s 1.47mw/c 5,000 4,000 * thermal time constant and dissipation constant are reference values, which are values of elements and vary with connecting or fixing methods. t.c.r. measuring temperature: +25c - +75c rated voltage = power ratingresistance value or max. working voltage, whichever is lower. t.c.r . . (10 ?6 /k) t.c.r. tolerance () resistance range (e24) resistance tolerance 2a 2b 150, 250, 350, 450, 500 10010 ?6 /k 2k - 15k 2k - 22k g: 2% 600, 700, 800, 900 15010 ?6 /k 1k - 8.2k 1k - 15k j: 5% 1000, 1200, 1400 15% 1k - 6.8k 1k - 8.2k 1600, 1800 510 - 4.7k 1k - 6.8k 2000, 2200, 2400 10% 510 - 4.7k 510 - 6.8k 2600, 2800, 3000 510 - 3k 510 - 6.2k 3300, 3600, 3900 4200 100 - 1k 100 - 2k 4500 51 - 510 51 - 510 thermal protection
lt73v linear positive temperature coefficient flat chip resistors (for automotive) specifcations given herein may be changed at any time without prior notice. please confrm technical specifcations before you order and/or use. 12/19/12 187 koa speer electronics, inc . ? 199 bolivar drive ? bradford, pa 16701 ? usa ? 814-362-5536 ? fax: 814-362-8883 ? www.koaspeer.com performance characteristics environmental applications 100 80 60 40 20 0 -40 -60 -20 02 04 06 08 0 100 120 140 160 85 -55 155 % percent rated power ambient temperature (c) l d d w 1002 c c t 4500 3300 2400 1600 t.c.r. (10 ?6 /k) ambient temperature (c) ? 50 ? 25 ? 75 25 125 0 100 50 75 150 ? 40 ? 30 ? 20 ? 10 0 10 20 30 40 50 60 70 % resistance changing rate temperature characteristics of resistance values are not guaranteed but typical. r t =r 25 (c 0 +c 1 t+c 2 t 2 ) r t : tc r t : resistance value at tc r 25 : 25c r 25 : resistance value at 25c t: (c) t: ambient temperatur e (c) c 0 , c 1 , c 2 : c 0 , c 1 , c 2 : constants t.c.r. (10 ?6 /k) c 0 c 1 c 2 3000 0.9288 0.0028 1.998310 ?6 3300 0.9232 0.0030 2.998010 ?6 3600 0.9175 0.0032 4.000010 ?6 3900 0.9099 0.0035 4.006410 ?6 4200 0.9026 0.0038 3.996410 ?6 4500 0.8948 0.0041 4.006410 ?6 approximate expression for resistance- t emperature characteristics parameters performance requirements ? r(%+0.05 ) test methods limit typical resistance within specified tolerance ? 25c t.c.r. within specified t.c.r. ? +25c/+75c overload (short time) 1% 0.02% rated voltage 2.5 or max. overload vol., whichever is lower, for 5 seconds resistance to soldering heat 1% 0.10% 260c 5c, 10 seconds 1 second rapid change of temperature 2% : tcr +3300 5% : tcr +3600 0.53% 2.59% ?55c (30min.)/+155c (30min.), 1000 cycles moisture resistance 3% 0.15% 85c 2c, 85% 5% rh, 1/10 rated power, 1.5h on/0.5h off cycle. 1000 hours endurance at 85c 2% : tcr +3300 5% : tcr +3600 0.30% 0.76% 85c 2c, 1000 hours 1.5h on/0.5h off cycle. high temperature load life 2% : tcr +3300 5% : tcr +3600 0.40% 2.17% 125c, rated voltage, 1000 hours high temperature exposure 2% : tcr +3300 5% : tcr +3600 0.81% 3.20% 155c, 1000h low temperature exposure 2% ?0.10% ?55c, 1000h please pay attention not to be applied esd, it may cause of resistance change. test items reference test methods esd 500v human model, 100pf, 1.5k actual value (out of guarantee) derating curve for resistors operated at an ambient temperature of 85c or above, a power rating shall be derated in accordance with the above derating curve. thermal protection
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