wirewound resistors, commercial coated, axial lead cw vishay dale www.vishay.com for technical questions , contact: ww2aresistors@vishay.com document number: 30215 26 revision: 13-sep-06 features ? high performance for low cost ? high temperature silicone coating ? complete welded construction ? excellent stability in operation ? high power to size ratio ? lead (pb)-free version is rohs compliant ** vishay dale cw models have two power ratings, depen ding on operating temperature and stability requirements *** 3 % tolerance available ? shaded areas indicate most popular models * pb containing terminations are not rohs compliant, exemptions may apply a v aila b le p b -free rohs* compliant e3 standard electrical specifications global model historical model power rating** p 25 c w resistance range 5 %, 10 %*** weight (max.) g characteristic u + 250 c characteristic v + 350 c cw1/2 cw-1/2 0.5 - 0.1 - 1.77k 0.21 cw001 cw-1 1.0 - 0.1 - 6.37k 0.34 cw01m cw-1m 1.0 - 0.1 - 3.3k 0.3 cw002 cw-2 4.0 5.5 0.1 - 28.7k 2.1 cw02m cw-2m 3.0 3.75 0.1 - 12k 0.65 cw02b cw-2b 3.0 3.75 0.1 - 15k 0.7 cw02b...13 cw-2b-13 4.0 6.0 0.1 - 6.8k 0.9 cw02c cw-2c 2.5 3.25 0.1 - 19.9k 1.8 cw02c...14 cw-2c-14 2.5 3.25 0.1 - 19.9k 1.2 cw005 cw-5 5.0 6.5 0.1 - 58.5k 4.2 cw005...2 cw-5-2 4.0 5.0 0.1 - 40.3k 4.2 cw005...3 cw-5-3 5.0 6.5 0.1 - 58.5k 4.2 cw007 cw-7 7.0 9.0 0.1 - 95.2k 4.7 cw010 cw-10 10.0 13.0 0.1 - 167k 9.0 cw010...3 cw-10-3 10.0 13.0 0.1 - 167k 9.0 technical specifications parameter unit cw resistor characteristics temperature coefficient ppm/c 90 for below 1.0 , 50 for 1.0 to 9.9 , 30 for 10 and above dielectric withstanding voltage v ac 1000 short time overload - 5 rated power for 5 sec. for 3.75 w size and smaller, 10 rated power for 5 sec. for 4 w size and greater terminal strength lb 10 minimum maximum working voltage v (p r) 1/2 operating temperature range c characteristic u = - 65/+ 250, characteristic v = - 65/+ 350 power rating - characteristic u = + 250 c max. hot spot temperature, 0.5 % max. r in 2000 hrs. load life characteristic v = + 350 c max. hot spot temperature, 3.0 % max. r in 2000 hrs. load life global part number information new global part numberin g : cw02c10k00jb1214 (preferred part numberin g format) cw02c10k00jb1214 global model (see standard electrical specifications glo b al model col u mn for options) special from 1-999 (dash nu m b er) ( u p to 3 digits) as applica b le resista n ce v alue r = decimal k = tho u sand 1r500 = 1.5 1k500 = 1.5 k tolera n ce code h = 3 % j = 5 % k = 10 % historical part number example: cw-2c-14 10 k 5 % b12 (will continue to be accepted) historical model resista n ce v alue tolera n ce code packagi n g cw-2c-14 10 k 5 % b12 packagi n g e70 = lead (p b )-free, tape/reel 1k pcs e73 = lead (p b )-free, tape/reel 500 pcs e12 = lead (p b )-free, b u lk s70 = tin/lead, tape/reel 1k pcs s73 = tin/lead, tape/reel 500 pcs b12 = tin/lead, b u lk d18 = lead (p b )-free, r1r 8 0 tape/reel c w 02b...13 pack code for e u rope u se only
cw wirewound resistors, comm ercial coated, axial lead vishay dale document number: 30215 for technical ques tions, contact: ww2ares istors@vishay.com www.vishay.com revision: 13-sep-06 27 dimensions * on some standard reel pack methods, the leads may be trimmed to a shorter length than shown. material specifications element: copper-nickel alloy or nickel-chrome alloy, depending on resistance value core: ceramic: steatite or alumina, depending on physical size coating: special high temperature silicone standard terminals: tinned copperweld ? end caps: stainless steel part marking: dale, model, wattage**, value, tolerance, date code ** wattage marked on resistor will be ?v? characteristic, cw1/2 will not be marked with wattage *** b (maximum) dimension is clean lead to clean lead. **** all r figures shown are maximum, based upon te sting requirements per mil-prf-26 at a ma ximum operating temperature of + 350 c. r maximum figures are considerably lower when test ed at a maximum operating temperature of + 250 c. d c 1.50 [38.10]* minimum a b derating 120 100 8 0 60 40 20 0 - 65 - 50 0 50 150 250 350 ambient temperature in c % n i r e w o p d e t a r char. v char. u 25 model dimensions in inches [millimeters] a b (maximum)*** cd cw1/2 0.250 0.031 [6.35 0.787] 0.281 [7.14] 0.085 0.020 [2.16 0.508] 0.020 0.002 [0.508 0.051] cw001 0.406 0.031 [10.31 0.787] 0.437 [11.10] 0.094 0.031 [2.39 0.787] 0.020 0.002 [0.508 0.051] cw01m 0.285 0.025 [7.24 0.635] 0.311 [7.90] 0.110 0.015 [2.79 0.381] 0.020 0.002 [0.508 0.051] cw002 0.625 0.062 [15.87 1.57] 0.765 [19.43] 0.250 0.032 [6.35 0.813] 0.040 0.002 [1.02 0.051] cw02m 0.500 0.062 [12.70 1.57] 0.562 [14.27] 0.185 0.015 [4.70 0.381] 0.032 0.002 [0.813 0.051] cw02b 0.562 0.062 [14.27 1.57] 0.622 [15.80] 0.188 0.032 [4.78 .813] 0.032 0.002 [0.813 0.051] cw02b...13 0.500 0.062 [12.70 1.57] 0.563 [14.30] 0.188 0.032 [4.78 0.813] 0.032 0.002 [0.813 0.051] cw02c 0.500 0.062 [12.70 1.57] 0.593 [15.06] 0.218 0.032 [5.54 0.813] 0.040 0.002 [1.02 0.051] cw02c...14 0.500 0.062 [12.70 1.57] 0.593 [15.06] 0.218 0.032 [5.54 .813] 0.032 0.002 [0.813 0.051] cw005 0.875 0.062 [22.22 1.57] 1.0 [25.40] 0.312 0.032 [7.92 0.813] 0.040 0.002 [1.02 0.051] cw005...2 0.875 0.062 [22.22 1.57] 1.0 [25.40] 0.250 0.032 [6.35 .813] 0.032 0.002 [0.813 0.051] cw005...3 0.875 0.062 [22.22 1.57] 1.0 [25.40] 0.312 0.032 [7.92 0.813] 0.032 0.002 [0.813 0.051] cw007 1.218 0.062 [30.94 1.57] 1.281 [32.54] 0.312 0.032 [7.92 0.813] 0.040 0.002 [1.02 0.051] cw010 1.781 0.062 [45.24 1.57] 1.875 [47.62] 0.375 0.032 [9.52 0.813] 0.040 0.002 [1.02 0.051] cw010...3 1.781 0.062 [45.24 1.57] 1.875 [47.62] 0.375 0.032 [9.52 0.813] 0.032 0.002 [0.813 0.051] performance**** test conditions of test test limits (characteristic v) thermal shock rated power applied until thermally stable, then a minimum of 15 minutes at - 55 c (2.0 % + 0.05 ) r short time overload 5 x rated power (3.75 w and smaller), 10 rated power (4 w and larger) for 5 sec. (2.0 % + 0.05 ) r dielectric withstanding voltage 1000 v rms , one minute (0.1 % + 0.05 ) r low temperature storage - 65 c for 24 hours (2.0 % + 0.05 ) r high temperature exposure 250 hours at + 350 c (4.0 % + 0.05 ) r moisture resistance mil-std-202 method 106, 7b not applicable (2.0 % + 0.05 ) r shock, specified pulse mil-std-202 method 213, 1 00 g?s for 6 milliseconds, 10 shocks (0.2 % + 0.05 ) r vibration, high frequency frequency varied 10 to 2000 hz, 20 g peak, 2 directions 6 hours each (0.2 % + 0.05 ) r load life 2000 hours at rated power, + 25 c, 1.5 hours ?on?, 0.5 hours ?off? (3.0 % + 0.05 ) r terminal strength 5 to 10 second 10 pound pull test; torsion test - 3 alternating directions, 360 c each (1.0 % + 0.05 ) r
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