features resistance value as low as 0.001 ohm power rating of 2 watts at 70 c inductance less than 5 nh rohs compliant* applications power supplies stepper motor drives crf2512 - high power current sense chip resistor *rohs directive 2002/95/ec jan 27 2003 including annex. speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications *rohs compliant dimensions: mm (inches) electrical characteristics power rating @ 70 c 0.001 to 0.010 ohms 2 w 0.015 to 0.040 ohms 1 w operating temperature range -55 c to +170 c derated to zero load at +170 c maximum working voltage (p x r)1/2 insulation resistance > 100 megohms resistance range 0.001 - 0.040 ohms resistance tolerance 1 %, 5 % temperature coef? cient 0.001 to 0.002 ohms 275 ppm/c 0.003 to 0.010 ohms 100 ppm/c 0.015 to 0.040 ohms 75 ppm/c recommended solder pad layout product dimensions resistance range ( ? ) a b l 0.001-0.002 4.0 3.1 1.3 (0.157) (0.122) (0.051) 0.003-0.040 4.0 2.1 4.1 (0.157) (0.083) (0.161) construction overcoat metal alloy plate ni / sn plating derating curve ambient temperature (c) 70 170 100 -55 power ratio (%) a b sensing trace cu trace l 6.40 0.20 (0.252 0.008) 0.60 0.20 (0.024 0.008) 3.20 0.20 (0.126 0.008) 0.95 0.10 (0.037 0.004) 0.95 0.10 (0.037 0.004) performance characteristics test conditions speci cation thermal shock -55 ?c to + 150 ?c, ? r (0.5 % + 0.0005 ? ) 1000 cycles, 15 minutes short time overload 5 x rated power for 5 seconds ? r (0.5 % + 0.0005 ? ) low temperature -65?c for 24 hours ? r (0.5 % + 0.0005 ? ) storage high temperature exposure 10000 hours @ + 170 ?c ? r (1.0 % + 0.0005 ? ) bias humidity + 85 ?c, 85 % rh, 10 % bias, ? r (0.5 % + 0.0005 ? ) 1000 hours mechanical shock 100 g?s for 6 milliseconds, 5 pulses ? r (0.5 % + 0.0005 ? ) vibration frequency varied 10 to 2000 khz ? r (0.5% + 0.0005 ? ) in one minute, 3 directions, 12 hours load life 1000 hours at rated power at ? r (1.0% + 0.0005 ? ) +70 ?c, 1.5 hours on, 0.5 hours off resistance to solder +260 ?c solder, 10-12 second dwell, ? r (0.5 % + 0.0005 ? ) heat 25 mm/second emergence moisture resistance mil-std-202 method 106, 0 % power ? r (0.5% + 0.0005 ? ) (7a and 7b not required)
how to order crf 2512 - f x - r003 e lf model (crf = precision chip resistor size 2512 = 2512 size resistance tolerance f = 1 % j = 5 % tcr (ppm/c) z = 75 ppm/c, 0.015 ohm or greater x = 100 ppm/c, 0.003 ohm through 0.010 ohm v = 275 ppm/c, 0.001 ohm through 0.002 ohm resistance value ?r? (decimal point) followed by three signi? cant digits (example: r025 = 0.025 ohm) packaging e = 4,000 pieces on 180 mm (7 inch) reel termination lf = tin-plated (rohs compliant) speci? cations are subject to change without notice. customers should verify actual device performance in their speci? c applications crf2512 - high power current sense chip resistor packaging dimensions (conforms to eia rs-481a) resistance value table rev. 11/08 code r value r001 0.001 r002 0.002 r003 0.003 r005 0.005 r007 0.007 r010 0.010 r015 0.015 r020 0.020 r025 0.025 r030 0.030 r035 0.035 r040 0.040 3.60 0.20 (0.142 0.008) 2.0 0.05 (0.079 0.002) 4.0 0.05 (0.157 0.002) 4.0 0.1 (0.157 0.004) 1.5 +0.1/-0 (0.059 +0.004/-0) dia. 1.5 (0.059) dia. min. 0.85 0.15 (0.033 0.006) 6.9 0.2 (0.272 0.008) 5.5 0.05 (0.217 0.002) 1.75 0.1 (0.069 0.004) 12.0 0.2 (0.472 0.008) top tape embossed tape resistor user direction of feed 60.0 (2.362) min. dia. dia. 180 +0/-3 (7.09 +0/-0.118) 13.0 1.0 (0.512 0.039) dia. 15.4 2.0 (0.606 0.079) 13.0 1.0 (0.512 0.039) dimensions: mm (inches) soldering pro le 25 75 125 175 225 275 0 50 100 150 200 250 300 time (seconds) temperature (c) 60 - 120 seconds 90 - 150 seconds 260 c peak 190 c 150 c 220 c ramp down 6 c/second 255 c maximum of 20 seconds between +255 c and +260 c ramp up 3 c/second maximum 10 seconds minimum <1> <1>
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