fibre core conformal coated wirewound resistor spp series ul1412 recognised fusing * coated or uncoated units positve high tcs upon request color band standard identfcaton lower ranges available - contact factory weldable and solderable magnetc leads * ul fle number e234469 resistors ma ke p ossibl e 09.14 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 fibre core conformal coated wirewound resistor spp series www.bitechnologies.com www.irctt.com www.welwyn-tt.com 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 11.13 ul1412 recognised fusing * coated or uncoated units positive high tcs upon request color band standard identifcation lower ranges available - contact factory weldable and solderable magnetic leads * ul fle number e234469 general note irc reser v es the r ight to mak e changes in product speci? cation without notice or liability . all inf or mation is subject to irc? s o wn data and is considered accur ate at time of going to pr int. a subsidiar y of tt electronics plc ? 4222 south staples street ? cor pus chr isti t e xas 78411 usa wire and film t ec hnologies division t elephone: 361 992 7900 ? f acsimile: 361 992 3377 ? w ebsite: www .irctt.com allo y resistance wire wou n d o n fiberglass core mechanically cr imped ter mination assemb ly eia/mil color code: first wide band indicates wire wound constr uction, b lue indicator indicates flameproof spp series ? coated or uncoated units ? p ositiv e high tc? s upon request ? color band standard identi?cation ? lo w er r anges a v ailab le - contact f actor y ? w eldab le and solder ab le magnetic leads lo w-cost gener al pur pose conf or mal coated wire w ound resistor notes: unless speci?ed otherwise , standard test centers are 1 ? inches . electr ical data irc t ype spp-1 SPP-2 spp-3 resistance - std. ul recognised range 0.1 to 1200 1 to 470 1 to 470 0.1 to 2400 0.1 to 2400 t olerance - std. 5% (e24), 10% (e12) p o wer rating 1 w att @ 85c 3/4 w att @ 105c 1/2 w att @ 125c der ating to 0 @ 160c 2 w att @ 85c 1 w att @ 140c --- --- 3 w att @ 85c 2 w att @ 145c 1 w att @ 190c --- --- load lif e stability 1 w att @ 85c 10% 2 w att @ 85c 10% 3 w att @ 85c 10% max. contin uous w orking v olta g e pr pr pr min. insulation resistance 10,000 meg 100 meg 10,000 meg 100 meg 10,000 meg 100 meg min. dielectric withstanding v olts (rms) 600v 600v 600v current noise negligib le negligib le negligib le t emperature rise at rated load, 25c ambient appro x. 150c appro x. 200c appro x. 225c t emperature coef?cient 600/c 0.10 - 0.91 300/c 1 - 1200 600/c 0.10 - 0.91 300/c 1 - 2400 600/c 0.10 - 0.91 300/c 1 - 2400 dr y w et spp ser ies issue december 2008 sheet 1 of 3 general note irc reser v es the r ight to mak e changes in product speci? cation without notice or liability . all inf or mation is subject to irc? s o wn data and is considered accur ate at time of going to pr int. a subsidiar y of tt electronics plc ? 4222 south staples street ? cor pus chr isti t e xas 78411 usa wire and film t ec hnologies division t elephone: 361 992 7900 ? f acsimile: 361 992 3377 ? w ebsite: www .irctt.com allo y resistance wire wou n d o n fiberglass core mechanically cr imped ter mination assemb ly eia/mil color code: first wide band indicates wire wound constr uction, b lue indicator indicates flameproof spp series ? coated or uncoated units ? p ositiv e high tc? s upon request ? color band standard identi?cation ? lo w er r anges a v ailab le - contact f actor y ? w eldab le and solder ab le magnetic leads lo w-cost gener al pur pose conf or mal coated wire w ound resistor notes: unless speci?ed otherwise , standard test centers are 1 ? inches . electr ical data irc t ype spp-1 SPP-2 spp-3 resistance - std. ul recognised range 0.1 to 1200 1 to 470 1 to 470 0.1 to 2400 0.1 to 2400 t olerance - std. 5% (e24), 10% (e12) p o wer rating 1 w att @ 85c 3/4 w att @ 105c 1/2 w att @ 125c der ating to 0 @ 160c 2 w att @ 85c 1 w att @ 140c --- --- 3 w att @ 85c 2 w att @ 145c 1 w att @ 190c --- --- load lif e stability 1 w att @ 85c 10% 2 w att @ 85c 10% 3 w att @ 85c 10% max. contin uous w orking v olta g e pr pr pr min. insulation resistance 10,000 meg 100 meg 10,000 meg 100 meg 10,000 meg 100 meg min. dielectric withstanding v olts (rms) 600v 600v 600v current noise negligib le negligib le negligib le t emperature rise at rated load, 25c ambient appro x. 150c appro x. 200c appro x. 225c t emperature coef?cient 600/c 0.10 - 0.91 300/c 1 - 1200 600/c 0.10 - 0.91 300/c 1 - 2400 600/c 0.10 - 0.91 300/c 1 - 2400 dr y w et spp ser ies issue december 2008 sheet 1 of 3
fibre core conformal coated wirewound resistor spp series ma ke p ossibl e 09.14 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 fibre core conformal coated wirewound resistor spp series www.bitechnologies.com www.irctt.com www.welwyn-tt.com 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 11.13 ? 4222 south staples street ? cor pus chr isti t e xas 78411 usa wire and film t ec hnologies division t elephone: 361 992 7900 ? f acsimile: 361 992 3377 ? w ebsite: www .irctt.com dimensions (inc hes and (mm)) irc t ype a b c .002(0.05) spp-1 0.400(10.2) max. 0.148(3.8) max. 0.032(0.8) 0.032(0.8) 0.032(0.8) SPP-2 0.570(14.5) max. 0.170(4.3) max. spp-3 0.570(14.5) max 0.170(4.3) max. ph ysical data characteristics maxim um limits t emperature coef?cient (ppm/c) 600/c 0.10 - 0.91 300/c 1.0 - 1200 600/c 0.10 - 0.91 300/c 1.0 - 2400 600/c 0.10 - 0.91 600/c 1.0 - 2400 thermal shoc k 5% lo w shoc k 5% shor t time overload 5% commer cial shor t time overload 5% resistance to solder immer sion 3% solderability 95% minim um co v er age moisture resistance 5% lif e t est 5% t est method eia speci?cation rs-344 en vironmental data lo w-cost gener al pur pose conf or mal coated wire w ound resistor spp-1 SPP-2 spp-3 c a max. 1.125 (28.6) min. b spp ser ies issue december 2008 sheet 2 of 3
fibre core conformal coated wirewound resistor spp series ma ke p ossibl e 09.14 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 fibre core conformal coated wirewound resistor spp series www.bitechnologies.com www.irctt.com www.welwyn-tt.com 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 11.13 ? 4222 south staples street ? cor pus chr isti t e xas 78411 usa wire and film t ec hnologies division t elephone: 361 992 7900 ? f acsimile: 361 992 3377 ? w ebsite: www .irctt.com p o w er der ating cur v e sample p ar t no. irc t ype p o wer (see electr ical data char t f or other po w er r atings) recognition ul = ul1412 recognised (optional characters) resistance v alue expressed in ohms (standard eia/mil v alues) t olerance lf = lead free j = 5%, k = 10% standard order ing data lf lo w-cost gener al pur pose conf or mal coated wire w ound resistor t emper ature rise cur v e 80 100 60 40 20 0 ambient t e mperature (c) p e r c ent rated p o wer 0 5 0 100 150 200 250 300 spp-3 spp-1, 2 200 300 100 p e r cent rated p o wer t emperature rise (c) 0 20 40 60 80 0 100 spp-3 SPP-2 spp-1 spp ser ies issue december 2008 sheet 3 of 3 1 10 100 10 15 20 25 30 35 40 45 50 55 60 fusing time (s) initial power (w) spp1 fusing characteristic (maximum & typical fusing times) maximum typical 1 10 100 1000 10 15 20 25 30 35 40 45 50 55 60 fusing time (s) initial power (w) spp2 fusing characteristic (maximum & typical fusing times) maximum typical spp series pulse energy limit single or low repetition rate, r <5%) value (ohms) energy (j) spp1 spp2 1 0 1 2 3 4 5 6 7 10 100 1000 10000 1.2/50us peak voltage limit (10 pulses at 30s intervals, r <5%) value (ohms) spp2 spp1 voltage kv 1 0 1 2 3 4 5 6 7 10 100 1000 10000 note: after fusing the ohmic value is at least 100 times the initial value, provided initial power 25w is applied. note: after fusing the ohmic value is at least 100 times the initial value, provided initial power 40w is applied. o r d e r ing pr o cedur e e xam p l e : s p p 1 ul 4 700 j l f ( s p p 1 , u l r e c o g n i s e d , 4 70 o h m s 5 % , p b - f r ee) s p p 1 u l 4 7 0 0 j l f 1 2 3 4 5 6 1 2 3 4 5 6 t y p e u l sta tu s va lue tole r a n c e packing & t e r m ina ti on fin i s h c u s to m c ode spp1 u l = u l re c o g n i s e d 3 d i g i t s + m u l t i p l i e r j = 5 % o m i t fo r s n pb o p t i ona l spp2 (spp1 & spp2 o n l y , s ee e l e c t ri c a l d a t a f o r appl i c a b l e v a l u e s . ) r = ohm s f o r v a l u e s <100 o h m s k = 10% l f = pb - f r e e spp3 st andar d p a c k i ng i s t ape & r eel , 400 0 / re e l
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