high power chip resistors sc3 series 3 wats in a 1 wat size package resistance range from 1r0 to 10k tolerances to 1% aec-q200 qualifed e u l a v c i t s i r e t c a r a h c power dissipation @70 ? c 3 w atts 1r0 to 10k e g n a r e c n a t s i s e r v 100 v e l ambient temp range -55 to +150?c % 5 , 2 , 1 e c n a r e l o t e c n a t s i s e r tcr 100ppm/?c t ermination leach-r esistant solder -plated copper wrap-ar ound pad & trace ar ea for maximum power rating 300mm 2 high p o w e r chip resistors s c 3 s e rie s ? 3 w atts in a 1 w att size package* ? resistance range from 1r0 to 10k ? ? t olerances aec-q200 quali ed to 1% * rated power @ 70?c general note w elwyn components r eserves the right to make changes in pr oduct speci cation without notice or liabilit y . 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 e lectrical d a t a p o w e r d e rating curv e issue a 03.02 a subsidiary of tt electr onics plc w elwyn components 84 0.51 0.13m m 6.35 0.13m m 3.18 0.13m m 0.762 0.127m m thickness plating wrap-around 0.81 0.31m m 2.29 0.13m m 7.6m m 2m m 1m m physical data 100 80 60 40 20 0 25 ? 70 ? 150 ? t emperature in ? c % of power rating t o p bottom (boar d side) recommended solder pad layout 04.10 e u l a v c i t s i r e t c a r a h c power dissipation @70 ? c 3 w atts 1r0 to 10k e g n a r e c n a t s i s e r v 100 v e l ambient temp range -55 to +150?c % 5 , 2 , 1 e c n a r e l o t e c n a t s i s e r tcr 100ppm/?c t ermination leach-r esistant solder -plated copper wrap-ar ound pad & trace ar ea for maximum power rating 300mm 2 high p o w e r chip resistors s c 3 s e rie s ? 3 w atts in a 1 w att size package* ? resistance range from 1r0 to 10k ? ? t olerances aec-q200 quali ed to 1% * rated power @ 70?c general note w elwyn components r eserves the right to make changes in pr oduct speci cation without notice or liabilit y . 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 e lectrical d a t a p o w e r d e rating curv e issue a 03.02 a subsidiary of tt electr onics plc w elwyn components 84 0.51 0.13m m 6.35 0.13m m 3.18 0.13m m 0.762 0.127m m thickness plating wrap-around 0.81 0.31m m 2.29 0.13m m 7.6m m 2m m 1m m physical data 100 80 60 40 20 0 25 ? 70 ? 150 ? t emperature in ? c % of power rating t o p bottom (boar d side) recommended solder pad layout 04.10 resistors all pb-free parts comply with eu directve 2011/65/eu (rohs2) 09.17 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.ttelectronics.com/resistors bi technologies irc welwyn e u l a v c i t s i r e t c a r a h c power dissipation @70 ? c 3 w atts 1r0 to 10k e g n a r e c n a t s i s e r v 100 v e l ambient temp range -55 to +150?c % 5 , 2 , 1 e c n a r e l o t e c n a t s i s e r tcr 100ppm/?c t ermination leach-r esistant solder -plated copper wrap-ar ound pad & trace ar ea for maximum power rating 300mm 2 high p o w e r chip resistors s c 3 s e rie s ? 3 w atts in a 1 w att size package* ? resistance range from 1r0 to 10k ? ? t olerances aec-q200 quali ed to 1% * rated power @ 70?c general note w elwyn components r eserves the right to make changes in pr oduct speci cation without notice or liabilit y . 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 e lectrical d a t a p o w e r d e rating curv e issue a 03.02 a subsidiary of tt electr onics plc w elwyn components 84 0.51 0.13m m 6.35 0.13m m 3.18 0.13m m 0.762 0.127m m thickness plating wrap-around 0.81 0.31m m 2.29 0.13m m 7.6m m 2m m 1m m physical data 100 80 60 40 20 0 25 ? 70 ? 150 ? t emperature in ? c % of power rating t o p bottom (boar d side) recommended solder pad layout 04.10 e u l a v c i t s i r e t c a r a h c power dissipation @70 ? c 3 w atts 1r0 to 10k e g n a r e c n a t s i s e r v 100 v e l ambient temp range -55 to +150?c % 5 , 2 , 1 e c n a r e l o t e c n a t s i s e r tcr 100ppm/?c t ermination leach-r esistant solder -plated copper wrap-ar ound pad & trace ar ea for maximum power rating 300mm 2 high p o w e r chip resistors s c 3 s e rie s ? 3 w atts in a 1 w att size package* ? resistance range from 1r0 to 10k ? ? t olerances aec-q200 quali ed to 1% * rated power @ 70?c general note w elwyn components r eserves the right to make changes in pr oduct speci cation without notice or liabilit y . 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 e lectrical d a t a p o w e r d e rating curv e issue a 03.02 a subsidiary of tt electr onics plc w elwyn components 84 0.51 0.13m m 6.35 0.13m m 3.18 0.13m m 0.762 0.127m m thickness plating wrap-around 0.81 0.31m m 2.29 0.13m m 7.6m m 2m m 1m m physical data 100 80 60 40 20 0 25 ? 70 ? 150 ? t emperature in ? c % of power rating t o p bottom (boar d side) recommended solder pad layout 04.10
high power chip resistors sc3 series hig h powe r c hip r e s i stors s c3 s e rie s ? 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 issue a 03.02 w elwyn components p e rform ance dat a t e mpe r a t u re r i se vs pad a r e a construction resistive thick film material, overglaze and organic pr otection ar e scr een printed on a 96% alumina substrate. the components ar e laser trimmed to achieve the r equir ed r esistance tolerance. t erminations the wrap-ar ound copper terminations have an electr oplated nickel barrier and tin-lead solder coating, this ensur es excellent ?leach? r esistance pr operties and solderability . chips can withstand immersion in solder at 250?c for 90 seconds and ar e suitable for r eflow or wave soldering mounting applications. marking the body pr otection and marking ar e r esistant to all normal industrial cleaning solvents suitable for printed cir cuits. chips ar e packed and mounted with marking side up. the sc3 chips ar e mounted with the actual r esistor element mounted face down on its termination pads. 1000 100 10 100mm 2 300mm 2 1000mm 2 t ermination pad area (each end) t e mperature rise ( ? c) 1 watt 2 watt 3 watt pulse p ower r a tin g 100 10 1 0 . 0 1 0 . 1 1 . 0 t ime (sec) power (watts) the wrap- a r ound termi natio ns h ave a n e l e c t r oplate d nick e l bar r i e r a nd m a tte tin ? n ish. t his en sur e s e xcellent ?lea ch? r esistan c e p r o p e r t i e s a nd sold erab ilit y . 04.10 aec-q200 t able 7 method max.+0.01 t yp. r ef t est 3 high t emp. exposur e mil-std-202 method 108 r% 0.5 0.2 4 t emperatur e cycling jesd22 method ja-104 r% 0.25 0.1 6 moistur e resistance mil-std-202 method 106 r% 0.5 0.2 7 biased humidity mil-std-202 method 103 r% 0.5 0.1 8 operational life (cyclic load) mil-std-202 method 108 r% 1.0 0.5 14 v ibration mil-std-202 method 204 r% 0.25 0.05 15 resistance to soldering heat mil-std-202 method 210 r% 0.25 0.05 16 thermal shock mil-std-202 method 107 r% 0.5 0.2 18 solderability j-std-002 >95% coverage 21 boar d flex aec-q200-005 r% 0.25 0.05 22 t erminal str ength aec-q200-006 r% 0.25 0.05 short t erm overload 6.25 x pr for 2s r% 0.5 low t emperatur e storage low temperature operation -65c for 100 hours r% r% r% 0.5 shelf life t est room temp for 12 months -65c for 1 hour then pr for 45 minutes 0.5 0.1 leach resistance solder dip at 250c 90s minimum 09.17 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.ttelectronics.com/resistors bi technologies irc welwyn
high power chip resistors sc3 series t ype sc3 - 33r f i resistance value (iec62 code) t olerance (iec62 packing code) h i g h p o w e r c h i p r e s i stor s s c 3 s e r i e s ? w elwyn components limite d 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 issue a 03.02 w e lwyn c omponents 86 p a c k a g i n g lrf3w resistors ar e supplied taped and r eeled as per iec 286-3. the standar d quantity per r eel is 1800 parts. t ape dimensions in mm w p 1 p0 p2 d 0 d1 e f a 0 b 0 k 0 t t1 t2 0.3 0.1 0.1 0.05 0.1 0.2 0.1 0.05 0.1 0.1 0.1 0.05 nom 0.15 lrf3w 12 8 4 2 1 .5 1.5 1.75 5.5 3.61 6.96 1.17 0.28 0.06 1.45 f 1% g 2% j 5% o rder i n g p ro c e d u re specify type r efer e nce etc. as shown in this example of 2.5 0.5 13 0.5 33 1.0 marking 0.8 0.15 80 2 178 2 13 0.5mm p 1 a 0 b 0 d 1 d 0 p 0 p 2 g f w e t 2 t 1 k 0 t sc3 resistors ar e supplied taped and r eeled as per iec 286-3. the standar d quantity per r eel is 1800 parts. sc3 sc3 at 33 1% on a reel of 1800 pieces: 04.10 i t ape sc3 1800/r eel standar d 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: s c3 - 3 3 rf i ( 3 3 o h m s 1 % , p b - f r ee) s c 3 - 3 3 r f i 1 2 3 4 us a ( irc) p a r t nu m b e r : s cw - s c3 l f - 3 3 r0 f ( 3 3 o hms 1 % , p b - f r ee) s c w - s c 3 l f - 3 3 r 0 f 1 2 3 4 5 1 2 3 4 t y p e va lue tole r a n c e packing sc 3 e24 = 3 / 4 c hara c t e r s f = 1 % i = st a n dard e96 = 3 / 4 c hara c t e r s g = 2 % 1800/ r eel r = ohm s j = 5 % k = k i l o h m s 1 2 3 4 5 f ami l y m ode l t e r m ina ti o n va lue tole r a n c e sc w sc 3 o m i t fo r s n pb 3 d i g i t s + m u l t i p l i e r f = 1 % l f = pb - f r e e r = ohm s f o r v a l ues <100 o h m s g = 2 % j = 5 % n o t e : p a ck agi n g i s t a p e & r eel , 1 800 / r e e l 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: s c3 - 3 3 rf i ( 3 3 o h m s 1 % , p b - f r ee) s c 3 - 3 3 r f i 1 2 3 4 us a ( irc) p a r t nu m b e r : s cw - s c3 l f - 3 3 r0 f ( 3 3 o hms 1 % , p b - f r ee) s c w - s c 3 l f - 3 3 r 0 f 1 2 3 4 5 1 2 3 4 t y p e va lue tole r a n c e packing sc 3 e24 = 3 / 4 c hara c t e r s f = 1 % i = st a n dard e96 = 3 / 4 c hara c t e r s g = 2 % 1800/ r eel r = ohm s j = 5 % k = k i l o h m s 1 2 3 4 5 f ami l y m ode l t e r m ina ti o n va lue tole r a n c e sc w sc 3 o m i t fo r s n pb 3 d i g i t s + m u l t i p l i e r f = 1 % l f = pb - f r e e r = ohm s f o r v a l ues <100 o h m s g = 2 % j = 5 % n o t e : p a ck agi n g i s t a p e & r eel , 1 800 / r e e l 09.17 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. www.ttelectronics.com/resistors bi technologies irc welwyn
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