SP20 TTELEC | Alldatasheet

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Moulded Wirewound Resistors General-Purpose Failsafe Moulded Wirewound Resistors SP20/SP20F Series

  • Drop-in replacement for BW20/BW20F
  • Predictable fusing characteristics
  • 1 watt rated with 1/2 watt dimensions
  • 0.1 ohm to 1200 ohms
  • Weldable and solderable magnetic leads 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 Type F02PS02PS EIA RS-344 Style CRU 1 MIL-R-11 Style RC20/RC32 k1 ot 1R02k1 ot 1R0smhoegnaR ecnatsiseR 01± ,5±%ecnareloT C°05 ta 1C°05 ta 1sttawgnitar rewoP 0.75 at 70°C 0.75 at 70°C -C°001 ta 5.0 Derating to 0 at 160°C Derating to 0 at 160°C Maximum continuous working voltage √PR geM 000,01yrdecnatsiser noitalusni muminiM geM 001tew V007MTAstlov gnidnatshtiw cirtceleid muminiM V054SMRerusserp decudeR Hotspot temperature rise 120°C at 1 watt Current noise Negligible Electrical Data Issue B · 03.02 A subsidiary of TT electronics plc Welwyn Components Dimensions (mm) Type L D d f Physical Data LD f d Resistive Element All resistor types have resistance alloy winding on a braided fibreglass substrate. Intermediate silicone coatings are used to enhance processibility and to provide protection to the resistive element. Termination The SP20 and SP20F resistors are terminated using an alloy coated copper flashed steel lead welded to a cap of the same material. This termination assembly is mechanically crimped, utilizing an improved crimp design, to the resistive element. Encapsulation The SP20 and SP20F are encapsulated utilizing a compression molded phenolic plastic material. The SP20F has a flame resistance coating applied over the resistive element to provide flammmability protection when destructive overloads may occur. Marking All products are marked utilizing heat and solvent resistant colour code bands consistent with EIA/MIL requirements. The first band is double width to designate wirewound construction. A fifth band, blue in colour, is used for flameproof identification. UL Recognised Range ohms N/A 1R0 to 470R SP20 / SP20F Series SP20F UL1412 recognised fusing * 0.1 ohm to 1200 ohms F version has flame resistant coating 1 watt rated with 1/2 watt dimensions Drop-in replacement BW20 / BW20F Weldable and solderable magnetic lead TCR’s as low as ±150 ppm/°C standard (custom TC’s available) Lead free, RoHS compliant construction available * UL file number E234469 Make Possible Resistors 07.14 General Note TT Electronics reserves the right to make changes in product specification 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 All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2)

Moulded Wirewound Resistors SP20/SP20F Series Performance Data Test F02PS02PS *008± R1<008± R1<C°/mpp)mpp( tneiciffeoc erutarepmeT ≥1R ±150 ≥1R ±150 V007SMRegatlov gnidnatshtiw cirtceleiD 5%daolrevo yratnemoM 5%noitarepo erutarepmet woL 5%elcyc erutarepmeT 5%ytidimuH 5%efil daoL 5%htgnerts lanimreT 5%taeh redlos ot ecnatsiseR General-Purpose Failsafe Moulded Wirewound Resistors SP20/SP20F Series © 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 B · 03.02 Welwyn Components Ambient Temperature (°C) Power (watts) 2.5 2.0 1.5 1.0 0.5 0 50 100 150 200 Ambient Temperature (°C) Pow er(w atts) SP20 Power Derating SP20F Power Derating Time (seconds) Power (watts) 0.1 ohm 1 ohm 10 ohm 100 ohm 1000 ohm Power Input (watts) Temp (°C) SP20F Typical Fusing SP20 and SP20F Temperature Rise *0.1 ohm SP20F <1000 ppm. Ordering Procedure Example: SP20F at 470 ohms and 5% tolerance tape packed on a reel of 4000 pieces – SP20F – 470R J I Type Value (use IEC62 code) Tolerance (use IEC62 code) J 5% K 10% Packing I Tape 4000/reel Standard

  • 4222 South Staples Street • Corpus Christi Texas 78411 USAWire and Film Technologies Division Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com Sample Part No. IRC Type Resistance Range Recognition (First three signifi cant fi gures plus fourth digit multiplier) UL = UL1412 recognised (optional characters) Example: 2203 = 220 Kohm 51R0 = 51 ohm 2R00 = 2.0 ohm Tolerance RoHS Compliant (optional) Provides clear "Lead Free" Designation Specifi cation Custom design identifi er for non-standard products Ordering Data SP20F SP-20 Power Derating Curve 2.0 2.5 1.5 1.0 0.5 Ambient Temperature (°C) Power (watts) 0 50 100 150 200 SP-20F Power Derating Curve 2.0 2.5 1.5 1.0 0.5 Ambient Temperature (°C) Power (watts) 0 50 100 150 200 SP-20 and SP20F Temperature Rise Chart 100 120 Power Input (watts) Temperature Rise (°C) 0 0.5 1.0 1.5 2.0

1800 J LF XXX

SP20/SP20F Series Issue September 2010 Sheet 3 of 3 0.1 100 1000 10 15 20 25 30 35 40 45 50 55 60 Fusing Time (s) Initial Power (W) SP20F Fusing Characteristic (Maximum & Typical Fusing Times) Typical - 1R0 Maximum - all values Typical - 470R Make Possible 07.14 General Note TT Electronics reserves the right to make changes in product specification 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

This product has two valid part numbers: European (Welwyn) Part Number: SP20FUL-180RJI (SP20F with UL recognition, 180 ohms ±5%, Pb-free) S P 2 0 F U L - 1 8 0 R J I 1 2 3 4 5 USA (IRC) Part Number: SP20FUL1800JLF (SP20F with UL recognition, 180 ohms ±5%, Pb-free) S P 2 0 F U L 1 8 0 0 J L F 1 2 3 4 5 6 1 2 3 4 5 Type UL Status Value Tolerance Packing & Termination Finish SP20 UL = UL recognised (SP20F only, see Electrical Data for applicable values.) R = ohms K = kilohms J = ±5% I = Standard packing & Pb-free SP20F K = ±10% Tape pack 4000/reel 1 2 3 4 5 6 Type UL Status Value Tolerance Packing & Termination Finish Custom Code SP20 UL = UL recognised (SP20F only, see Electrical Data for applicable values.) 3 digits + multiplier J = ±5% Omit for SnPb Optional SP20F R = ohms for values <100 ohms K = ±10% LF = Pb-free Tape pack 4000/reel General-Purpose Failsafe Moulded Wirewound Resistors SP20/SP20F Series Make Possible 07.14 General Note TT Electronics reserves the right to make changes in product specification 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