general note irc reserves the right to make changes in product specification without notice or liability. all information is subject to ircs own data and is considered accurate at time of going to print. a subsidiary of tt electronics plc advanced film division ? 4222 south staples street ? corpus christi texas 78411 usa telephone: 361 992 7900 ? facsimile: 361 992 3377 ? email: afdsales@irctt.com ? website: www.irctt.com lr series issue june 2010 low value current sense flat chip resistor lr series ? resistance range from 0.002 ? up to 1 ? ? standard sn/pb and pb lead-free terminations available ? high power dissipation at 70c ? tolerances to 1% electrical data outline dimensions 6 0 2 10 1 0 22 1 5 2 . n im m. n im m. n i. m m l 2 1 0 . 0 6 2 1 . 05 0 3 . 0 0 2 . 35 1 0 . 0 6 0 2 . 08 3 . 0 3 2 . 55 1 0 . 0 6 5 2 . 08 3 . 0 0 5 . 6 w 8 0 0 . 0 4 6 0 . 03 0 2 . 0 3 6 . 10 1 0 . 0 4 0 1 . 05 2 . 0 4 6 . 20 1 0 . 8 2 1 . 05 2 . 0 5 2 . 3 h 4 0 0 . 0 4 2 0 . 02 0 1 . 0 1 6 . 04 0 0 . 0 9 2 0 . 01 . 0 4 7 . 04 0 0 . 0 9 2 0 . 01 . 0 4 7 . 0 d 0 1 0 . 0 9 1 0 . 05 2 . 0 8 4 . 00 1 0 . 0 9 1 0 . 05 2 . 0 8 4 . 00 1 0 . 0 9 1 0 . 05 2 . 0 8 4 . 0 e 0 1 0 . 0 9 1 0 . 05 2 . 0 8 4 . 00 1 0 . 0 9 1 0 . 05 2 . 0 8 4 . 00 1 0 . 0 9 1 0 . 05 2 . 0 8 4 . 0 h d l protective overcoat cu termination solder plating ni barrier layer cu wraparound termination alumina substrate w e size resistance range 1 tcr 2 (ppm/ c) power rating at 70 c (watts) dielectric withstanding voltage (v) maximum current (amps) operating temperature pad and trace area for max power rating @ 70 c tolerance f, g, j, k tolerance j, k tolerance k 1206 0.010 to 1 w 0.003 to 1 w 0.003 to 1 w 100 0.5 200 16 -55 c to +150 c 30mm 2 2010 0.002 to 1 w 1.0 22 100mm 2 2512 0.002 to 1 w 2.0 32 300mm 2 1 non-standard resistance values available 2 contact factory for tcr information on values under 0.05ohms
lr series issue june 2010 advanced film division ? 4222 south staples street ? corpus christi texas 78411 usa telephone: 361 992 7900 ? facsimile: 361 992 3377 ? email: afdsales@irctt.com ? website: www.irctt.com low value current sense flat chip resistor environmental performance prefx lrc - lrf 1206lf - 01 - r020 - f model lr for values > 0.025 ? lrf for values 0.025 ? size 1206; 1206lf; 2010; 2010lf; 2512; 2512lf (lf=lead free terminations) tcr code 01 = 100ppm/c resistance code 4-digit resistance code. ex: r050 = 0.050 ? ; 1r00 = 1 ? tolerance code f = 1%, g = 2%, j = 5%, k = 10% for additional information or to discuss your specific requirements, please contact our applications team using the contact details below. pulse and surge capability average power dissipationnot to exceed normal 70c rating surge or repetitive pulse duration 300 sec 1 msec 3 msec 10 msec 30 msec 100 msec 300 msec 1 sec 70 50 30 20 10 7 5 3 surge power watts lrc 2512 2 watts lrc 2010 1 watt lrc 1206 0.5 watts power derating curve power derating and pulse/surge capability ordering procedure recommended solder pad layout a b c . m i d6 0 2 1 r l0 1 0 2 r l2 1 5 2 r l a . n i0 8 0 . 00 2 1 . 05 4 1 . 0 m m) 0 . 2 () 5 0 . 3 () 7 . 3 ( b . n i0 6 1 . 05 5 2 . 05 0 3 . 0 m m) 0 . 4 () 5 . 6 () 5 7 . 7 ( c . n i0 5 0 . 00 6 0 . 00 6 0 . 0 m m) 5 2 . 1 () 5 . 1 () 5 . 1 ( 25 70 150 100 50 10 % of rated po wer t emperature in c environmental test test method typical performance thermal shock mil-std-202 method 107g condition b, -55c +150c, 100 cycles 0.5% + 1.0m ? short time overload 6.25x rated power for 5 seconds (1206, 2010 size) 5x rated power for 5 seconds (2512 size) 0.5% + 0.5m ? high temperature exposure 100 hours @150c 0.5% + 0.5m ? dielectric withstanding voltage mil-std-202, method 301 2.5x rated voltage, 1 minute 0.25% + 0.5m ? moisture resistance mil-std-202 method 106 0.5% + 0.5m ? load life 1000 hours, rated power, 70c 1.5 hours on, 30 minutes off 1.0% + 0.5m ? low temperature operation 1 hour -65c followed by rated power for 45 min 0.5% + 0.5m ? resistance to solder heat mil-std-202 method 210 260c, 10 seconds 0.5% + 1.0m ? insulation resistance mil-std-202 method 302 100vdc, 1 minute >1000 megohms solderability mil-std-202 method 208 245c, 5 seconds 95% min coverage
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