features resistance value as low as 0.001 ohm high power density inductance less than 5 nh rohs compliant* applications power supplies stepper motor drives crf series - high power current sense chip resistor *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users should verify actual device performance in their speci c applications. *rohs compliant electrical characteristics performance characteristics rating crf0805 crf1206 crf2512 power rating @ 70 ? 0.5 w 1 w (0.001 to 0.010 ) 2 w (0.011 to 0.050 ) 1 w operating temperature range -55 ? to +170 ? derated to zero load at +170 ? maximum working voltage (p x r) 1/2 resistance 0.005 ~ 0.020 0.001 ~ 0.030 0.001 ~ 0.050 resistance tolerance 1 %, ? % temperature coef cient ?00 ppm/? (0.001 ) ?75 ppm/? (0.002 to 0.010 ) ?00 ppm/? (>0.010 ) ? 75 ppm/? test conditions speci cation crf0805 crf1206 crf2512 thermal shock -55 ?c to +150 ?c, 300 cycles, 15 minutes r ?1 % + 0.0005 ) r ?0.5 % + 0.0005 ) short time overload 5 x rated power for 5 seconds r ?0.5 % + 0.0005 ) r ?0.5 % + 0.0005 ) low temperature storage -55 ?c for 1000 hours r ?0.5 % + 0.0005 ) r ?0.5 % + 0.0005 ) high temperature exposure 1000 hours @ + 170 ?c r ?1 % + 0.0005 ) r ?0.5 % + 0.0005 ) bias humidity + 85 ?c, 85 % rh, 10 % bias, 1000 hours n/a r ?1 % + 0.0005 ) mechanical shock 100 g for 6 milliseconds, 5 pulses n/a r ?0.5 % + 0.0005 ) vibration frequency varied 10-2000 khz in one minute, 3 directions, 12 hours n/a r ?0.5 % + 0.0005 ) load life 1000 hours at rated power at +70 ?c, 1.5 hours on, 0.5 hours off r ?1 % + 0.0005 ) r ?1 % + 0.0005 ) resistance to solder heat +260 ?c, 10-12 second dwell, 25 mm/second emergence r ?0.5 % + 0.0005 ) r ?0.5 % + 0.0005 ) moisture resistance mil-std-202 method 106, 0 % power (7a and 7b not required) r ?1 % + 0.0005 ) r ?0.5 % + 0.0005 )
dim. crf0805 crf1206 crf2512 0.005 ~ 0.020 0.001 0.002 ~ 0.030 0.001 ~ 0.003 0.004 ~ 0.050 a 1.4 (0.055) 1.8 (0.070) 1.8 (0.070) 4.0 (0.157) 4.0 (0.157) b 1.15 (0.045) 2.3 (0.090) 1.7 (0.066) 3.1 (0.122) 2.1 (0.083) l 1.2 (0.047) 1.0 (0.039) 1.6 (0.062) 1.3 (0.051) 4.1 (0.161) dim. crf0805 crf1206 crf2512 a 2.0 0.10 (0.079 0.004) 3.20 0.20 (0.126 0.008) 6.40 0.20 (0.252 0.008) b 1.25 0.10 (0.049 0.004) 1.65 0.20 (0.064 0.008) 3.20 0.20 (0.126 0.008) c 0.40 0.20 (0.016 0.008) 0.50 0.30 (0.0197 0.012) 0.95 0.30 (0.037 0.012) t 0.60 0.20 (0.024 0.008) 0.60 0.20 (0.024 0.008) 0.60 0.20 (0.024 0.008) speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device perfor mance may vary over time. users should verify actual device performance in their speci c applications. crf series - high power current sense chip resistor code r value code r value r011 0.011 r030 0.030 r012 0.012 r033 0.033 r015 0.015 r035 0.035 r018 0.018 r040 0.040 r020 0.020 r050 0.050 r025 0.025 dimensions: mm (inches) product dimensions construction overcoat metal alloy plate ni / sn plating derating curve ambient temperature (c) 70 170 100 -55 power ratio (%) a b cc recommended solder pad layout a b sensing trace cu trace l resistance value tables cc t code r value code r value r005 0.005 r010 0.010 r009 0.009 r020 0.020 code r value code r value r001 0.001 r010 0.010 r002 0.002 r012 0.012 r004 0.004 r014 0.014 r005 0.005 r015 0.015 r006 0.006 r020 0.020 r007 0.007 r022 0.022 r008 0.008 r025 0.025 r009 0.009 r030 0.030 crf0805 crf1206 crf2512 (1w) code r value code r value r001 0.001 r006 0.006 r002 0.002 r007 0.007 r003 0.003 r008 0.008 r004 0.004 r010 0.010 r005 0.005 crf2512 (2w) dimensions: mm (inches)
crf series - high power current sense chip resistor d 0 dia. 1.5 (0.059) dia. min. t a p 1 p 2 p 0 b e f w top tape embossed tape resistor user direction of feed how to order crf 0805 - f x - r020 e lf model (crf = precision chip resistor) size 0805 = 0805 size 1206 = 1206 size 2512 = 2512 size resistance tolerance ?f = ? % ?j = ? % tcr (ppm/?) ?z = ? 75 ppm/? (>0.010 ohm) ?x = ?00 ppm/? (0.002 ohm ~ 0.010 ohm & model crf0805 only) ?v = ?75 ppm/? (0.001 ohm) resistance value ??(decimal point) followed by three signi cant digits (example: r020 = 0.020 ohm) packaging ?e = 5,000 pcs./180 mm (7-inch) reel (crf0805 & crf1206) or 4,000 pcs./180 mm (7-inch) reel (crf2512) termination ?lf = tin-plated (rohs compliant) speci cations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their speci c applications. packaging dimensions (conforms to eia rs-481a) rev. 09/13 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) packing model a b w f e p1 p2 p0 d0 t paper tape crf0805 1.6 0.15 (0.063 0.006) 2.4 0.20 (0.094 0.008) 8.0 0.20 (0.315 0.008) 3.5 0.05 (0.138 0.002) 1.75 0.10 (0.069 0.004) 4.0 0.10 (0.157 0.004) 2.0 0.1 (0.079 0.004) 4.0 0.1 (0.157 0.004) 1.5+0.1/-0 (0.059+0.004/-0) 0.84 0.10 (0.033 0.004) paper tape crf1206 2.0 0.15 (0.079 0.006) 3.6 0.20 (0.142 0.008) 8.0 0.20 (0.315 0.008) 3.5 0.05 (0.138 0.002) 1.75 0.10 (0.069 0.004) 4.0 0.10 (0.157 0.004) 2.0 0.05 (0.079 0.002) 4.0 0.05 (0.157 0.002) 1.5+0.1/-0 (0.059+0.004/-0) 0.85 0.15 (0.033 0.006) embossed tape crf2512 3.60 0.20 (0.142 0.008) 6.9 0.20 (0.272 0.008) 12.0 0.20 (0.472 0.008) 5.5 0.05 (0.217 0.002) 1.75 0.10 (0.069 0.004) 4.0 0.10 (0.157 0.004) 2.0 0.05 (0.079 0.002) 2.0 0.05 (0.079 0.002) 1.5+0.1/-0 (0.059+0.004/-0) 0.85 0.15 (0.033 0.006) 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 ? peak 190 ? 150 ? 220 ? ramp down 6 ?/second 255 ? maximum of 20 seconds between +255 ? and +260 ? ramp up 3 ?/second maximum 10 seconds minimum <1> <1>
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