ceramic case resi ste rs ? wir ewound / m et al o xide sqp se ri es ? 2 watts to 20 watts* ? resistance 0r1 to 100k ? high overload capability ? rohs compliant general note welwyn components reserves the right to make changes in product specification without notice or liability. all information is subject to welwyn?s own data and is considered accurate at time of going to print. ? welwyn components limited bedlington, northumberland ne22 7aa, uk telephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com website: www.welwyn-tt.com electrica l data issue c 07.06 a subsidiary of tt electronics plc welwyn components * other styles (radial/pluggable); sizes, and 30, 40, 50 w types are available to special order. sqp2 sqp3 sqp5 sqp7/7s sqp10 sqp15 sqp20 025101 7 5 3 2sttaw c?07 ta gnitar rewop resistance range wirewound 0r1-50r 0r1- 0r1- 0r1-100r 0r1- 0r1- 0r1- 100r 100r (7 & 7s) 200r 200r 500r metal oxide 51r- 100r- 110r- 110r-47k 220r- 220r- 510r- (ohms) 47k 47k 47k (7 only) 68k 68k 100k limiting element voltage volts dc or ac rms 150 300 350 500 (7s-350) 750 1000 1000 316132 82 03 5405ttaw/c? ecnadepmi lamreht 0001 stlov egatlov noitalosi ;mpp0071 ,86r0< ,sepyt wwc?/mpp rct 0r68, 200ppm: mo types all values 350ppm )j(5 % ecnarelot ecnatsiser standard values e24 preferred c?551+ ot 55- c? egnar erutarepmet tneibma 70 physic al data d nom 0.05 f l f min bend radius, all types 1.6 mm w h packaging our standard packaging for sqp series is bulk pack dimensions (mm) and weight (g) resistors 09.09 type l max. w max. h max. f min. d (0.1) wt. nom. sqp2 19 8 8 23 0.70 2.2 sqp3 23 9 9 27 0.70 3.5 sqp5 23 11 10 27 0.75 5.0 sqp7 36 11 10 30 0.75 8.2 sqp7s 26 10 10 30 0.75 6.0 sqp10 50 11 11 30 0.75 11.0 sqp15 50 13.5 13.5 30 0.75 17.4 sqp20 61 15.5 14.5 30 0.75 25.0
c era mic c as e re siste rs ? wire wound / m etal oxide sqp se ri es ? welwyn components limited bedlington, northumberland ne22 7aa, uk telephone: +44 (0) 1670 822181 facsimile: +44 (0) 1670 829465 email: info@welwyn-tt.com website: www.welwyn-tt.com issue c 07.06 welwyn components maximum load at rated power (1000hrs at 70?c) 50.0+ %5 %r hparg ees c?07 ta rewop detar morf gnitared short term overload * 50.0+ %2 %r damp heat steady state (56 days, 40?c, 90% rh) 50.0+ %2 %r temperature rapid change 50.0+ %2 %r resistance to solder heat 50.0+ %1 %r pulse handling data available by request 71 constru cti on a high purity ceramic rod, with force fit end caps onto which is wound a wire element: or a deposited metal oxide film (depending on value). the element is fitted into a ceramic case with fireproof insulation cement. te rminat ion det ails mate ri al the ti nne d cop per l ead wires are i nt erna lly we lded to th e re sistance element end ca ps. solder abi lity the terminatio ns m eet the r equ ir ements of iec 115- 1 cla us e 4.1 7.3.2 str eng th the terminatio ns m eet the r equ ir ements of iec 86 .2.21 mar king ty pe refer enc e, re sistan ce val ue and tolerance are le gend mark ed o nt o the upper sur fa ce. flammabi li ty the re sisto r w ill not bu rn or em it incand escent pa rticl es un de r an y cond iti on of applied temp eratu re or ove rloa d. solven t resi st an ce the bod y prote cti on and marki ng are re sistan t to a ll normal i ndustrial so lv ents su itab le for printed ci rcu its. perfo rm ance data *(wirewound:: the lower of 5x rated power, or 2.5x lev for 5 secs. metal oxide:: the lower of 6.25x rated power, or 2.5x lev for 5 secs) p metal oxide types 100% 50% 0% -30 70 155 240 t?c 118% p wirewound types 100% 50% 0% -30 25 70 155 240 t?c or dering proc edu re exampl e: 5,000 sq p3 at 1.2 k ilohms and 5% tol eranc e in stand ard b ul k pa ck option- model sqp3 ? 1k2 j b10 value (use iec62 code) tolerance (use iec62 code) j 5% packing code family qty/ carton b5 sqp2,3,5 5000 bulk b15 pack sqp7,10 1500 b1 sqp15,20 1000 09.09 resistors b5
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