ultra precision metal film resistors CAR series tolerance down to 0.01% low tcrs high reliability superior moisture performance non standard values available highest stability metal flm available matched sets and networks ultra p r ecision metal film resistors CAR series ? t olerance down to 0.01% ? low tcr? s ? high r eliability ? superior moistur e performance ? non standar d values available ? highest stability metal film available ? matched sets and networks t olerance tcr CAR5 CAR6 CAR7 ppm/c 0.01-0.02% 0.05% 0.1-1% 0.01/0.02% 0.05% 0.1-1% 0.01-0.02% 0.05% 0.1-1% 5 50 to 300k 10 to 500k 10 to 500k 50 to 500k 10 to 500k 10 to 500k 50 to 750k 10 to 750k 10 to 750k 10 50 to 300k 10 to 1m 10 to 1m 50 to 500k 10 to 1m 10 to 1m 50 to 750k 10 to 1m 10 to 1.5m 15 50 to 300k 10 to 1m 10 to 1m 50 to 500k 10 to 1m 10 to 1m 50 to 750k 10 to 1m 10 to 3.5m 25 50 to 300k 10 to 1m 10 to 1.5m 50 to 500k 10 to 1m 10 to 3m 50 to 750k 10 to 1m 10 to 5m 50 50 to 300k 10 to 1m 10 to 3m 50 to 500k 10 to 1m 10 to 5m 50 to 750k 10 to 1m 10 to 10m dimensions (mm) and w eight (g) pcb min mounting bend wt. t ype l max d max f min d nom. centr es radius nom. CAR5 7.2 2.5 30 0.6 10.2 0.6 0.24 CAR6 10.0 3.7 30 0.6 12.7 0.6 0.40 CAR7 15.5 5.5 30 0.8 18.4 1.2 1.15 general note w elwyn components r eserves the right to make changes in pr oduct specification without notice or liability . all information is subject to w elwyn? s own data and is consider ed accurate at time of going to print. ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com CAR5 CAR6 CAR7 notes power rating at 70c watts 0.25 0.33 0.5 power rating at 85c watts 0.125 0.25 0.33 resistance range ohms 10r0 to 3m 10r0 to 5m 10r0 to 10m limiting element voltage volts 250 350 500 tcr (20 to +70c) ppm/c 5(v), 10(t), 15(y), 25(d), 50(c) see tolerance/tcr resistance tolerance % 0.01(l), 0.02(p), 0.05(w), 0.1(b), 0.25(c), 0.5(d) & 1(f) combinations standar d values e24, e96 pr eferr ed below thermal impedance c/watt 110 70 60 ambient temperatur e range note1: based on sampling. 100% screened product is available. c -55 to +155 electrical data t able of resistance restrictions physical data a subsidiary of tt electr onics plc w elwyn components 178 l d f d 1 ultra p r ecision metal film resistors CAR series ? t olerance down to 0.01% ? low tcr? s ? high r eliability ? superior moistur e performance ? non standar d values available ? highest stability metal film available ? matched sets and networks t olerance tcr CAR5 CAR6 CAR7 ppm/c 0.01-0.02% 0.05% 0.1-1% 0.01/0.02% 0.05% 0.1-1% 0.01-0.02% 0.05% 0.1-1% 5 50 to 300k 10 to 500k 10 to 500k 50 to 500k 10 to 500k 10 to 500k 50 to 750k 10 to 750k 10 to 750k 10 50 to 300k 10 to 1m 10 to 1m 50 to 500k 10 to 1m 10 to 1m 50 to 750k 10 to 1m 10 to 1.5m 15 50 to 300k 10 to 1m 10 to 1m 50 to 500k 10 to 1m 10 to 1m 50 to 750k 10 to 1m 10 to 3.5m 25 50 to 300k 10 to 1m 10 to 1.5m 50 to 500k 10 to 1m 10 to 3m 50 to 750k 10 to 1m 10 to 5m 50 50 to 300k 10 to 1m 10 to 3m 50 to 500k 10 to 1m 10 to 5m 50 to 750k 10 to 1m 10 to 10m dimensions (mm) and w eight (g) pcb min mounting bend wt. t ype l max d max f min d nom. centr es radius nom. CAR5 7.2 2.5 30 0.6 10.2 0.6 0.24 CAR6 10.0 3.7 30 0.6 12.7 0.6 0.40 CAR7 15.5 5.5 30 0.8 18.4 1.2 1.15 general note w elwyn components r eserves the right to make changes in pr oduct specification without notice or liability . all information is subject to w elwyn? s own data and is consider ed accurate at time of going to print. ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com CAR5 CAR6 CAR7 notes power rating at 70c watts 0.25 0.33 0.5 power rating at 85c watts 0.125 0.25 0.33 resistance range ohms 10r0 to 3m 10r0 to 5m 10r0 to 10m limiting element voltage volts 250 350 500 tcr (20 to +70c) ppm/c 5(v), 10(t), 15(y), 25(d), 50(c) see tolerance/tcr resistance tolerance % 0.01(l), 0.02(p), 0.05(w), 0.1(b), 0.25(c), 0.5(d) & 1(f) combinations standar d values e24, e96 pr eferr ed below thermal impedance c/watt 110 70 60 ambient temperatur e range note1: based on sampling. 100% screened product is available. c -55 to +155 electrical data t able of resistance restrictions physical data a subsidiary of tt electr onics plc w elwyn components 178 l d f d 1 ma ke p ossibl e resistors all pb-free parts comply with eu directve 2011/65/eu (rohs2) 12.14 general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc www.ttelectronicsresistors.com
ultra precision metal film resistors CAR series figur e 1 construction ceramic r ods ar e coated with a metal film and plated steel caps ar e for ce fitted. a helical cut is used to adjust the film to its final value. t ermination wir es ar e welded to the caps and the r esistor is pr otected with a specially formulated epoxy coating. t erminations material solder -coated copper wir e. str ength the terminations meet the r equir ements of iec 68.2.21 solderability the terminations meet the r equir ements of iec 115-1, clause 4.17.3.2 ultra p r ecision metal film resistors CAR series ? w elwyn components limited bedlington, northumberland ne22 7aa, uk t elephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com w ebsite: www .welwyn-tt.com 179 w elwyn components v alues 10 250k v alues > 250k actual performance actual performance maximum t ypical maximum t ypical load at rated power : 1000 hrs at 70c (or 85c) ? r % 0.05 0.02 0.25 0.05 dry heat : 1000 hrs at 155c ? r % 0.15 0.08 1 0.2 shelf life : 12 months at r oom temperatur e ? r % 0.01 0.003 0.04 0.02 c 5 5 1 t a o r e z c 5 5 1 t a o r e z ) c 5 8 r o ( c 0 7 t a r e w o p d e t a r m o r f g n i t a r e d short term overload ? r % 0.01 0.001 0.08 0.01 climatic ? r % 0.05 0.02 0.2 0.05 6 5 / 5 5 1 / 5 5 6 5 / 5 5 1 / 5 5 y r o g e t a c c i t a m i l c long term damp heat ? r % 0.05 0.02 0.2 0.05 t emperatur e rapid change ? r % 0.04 0.02 0.25 0.05 resistance to solder heat ? r % 0.02 0.003 0.05 0.005 v ibration and bump ? r % 0.02 0.002 0.06 0.02 1 . 0 1 3 0 . 0 2 . 0 v / v ) y c n e u q e r f f o e d a c e d a n i ( e s i o n 5 0 . 0 < 2 . 0 5 0 . 0 < 3 . 0 v / m p p e c n a t s i s e r f o t n e i c i f f e o c e g a t l o v marking t ype r efer ence, tcr code, r esistance value and tolerance code. the r esistance value marking conforms to iec 62. solvent resistance the body pr otection and marking ar e r esistant to all normal industrial cleaning fluids suitable for printed cir cuits. performance data application notes resistors can be supplied matched for tolerance and tcr down to 0.005% and 1ppm/c, r espectively , either as separate r esistors or pr e-assembled and encapsulated within a plastic box. the individual r esistors within a set or module can be manufactur ed with a tolerance of 0.01% and a tcr of 5ppm/c. 52 f 1 f 2 6 6 5 body location f 1 ? f 2 1.4 mm ma ke p ossibl e 12.14 general note tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc www.ttelectronicsresistors.com
ultra precision metal film resistors CAR series o r d e r ing pr o cedur e t h i s p ro d u c t h a s t w o v a lid p a rt num bers : e u r opean ( w e lw y n ) p a r t nu m b e r: c a r 5 v - 3 1 k6 p i ( ca r5 wi t h t cr 5ppm / c a t 3 1 .6 k ilohm s 0 .02% , p b - f r ee) c a r 5 v - 3 1 k 6 p i 1 2 3 4 5 us a ( irc) p a r t nu m b e r : c a r 5 lfv 316 2p a ( ca r 5 wi th t cr 5 p p m / c a t 31. 6 k ilohm s 0 .02% , p b - f r e e ) c a r 5 l f v 3 1 6 2 p a 1 2 3 4 5 6 1 2 3 4 5 t y p e t cr (ppm / c ) va lue tole r a n c e finish, screening & packing c ar 5 v = 5 e24 = 3 / 4 c hara c t e r s e96 = 4 / 5 c hara c t e r s r = ohm s k = k i l o h m s m = m egohm s l = 0 . 0 1 % c ar 6 t = 1 0 p = 0 . 0 2 % c ar 7 y = 1 5 w = 0 . 0 5 % d = 2 5 b = 0 . 1 % c = 5 0 c = 0 . 2 5 % d = 0 . 5 % f = 1 % 1 2 3 4 5 6 t y p e t e r m ina ti o n t cr (ppm / c ) va lue tole r a n c e packing c ar 5 o m i t fo r s n pb v = 5 3 d i g i t s + m u l t i p l i e r l = 0 . 0 1 % c ar 6 l f = pb - f r e e t = 1 0 r = ohm s f o r v a l ues <100 o h m s p = 0 . 0 2 % c ar 7 y = 1 5 w = 0 . 0 5 % d = 2 5 b = 0 . 1 % c = 5 0 c = 0 . 2 5 % d = 0 . 5 % f = 1 % sc = standard packing & pb-free with 5ppm/c screened pb = standard packing & snpb CAR5, CAR6 CAR7 bulk 250/box ammo up to 1000/box i = standard packing & pb-free a b CAR5, CAR6 CAR7 bulk 250/box ammo up to 1000/box ma ke p ossibl e 12.14 tt electronics reserves the right to make changes in product specifcation without notice or liability. all information is subject to tt electronics own data and is considered accurate at time of going to print. ? tt electronics plc www.ttelectronicsresistors.com
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