CeramicCase CaseResistors Resisters Resistors Ceramic - - Wirewound Oxide Wirewound/ Metal / Metal Oxide Welwyn Components SQP Series SQP Series *s *s *s *s watts to to 20 20 watts* 22 watts watts* Resistance 0R1 0R1 to to 100K 100K Resistance High overload capability RoHS compliant Electrical Data Power rating at 70 C watts Wirewound Resistance range SQP2 SQP3 SQP5 SQP7/7S SQP10 SQP15 SQP20 2 3 5 7 10 15 20 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 volts dc or ac rms 150 300 350 500 (7S-350) 750 1000 1000 C/watt 50 45 30 28 23 16 13 Limiting element voltage Thermal impedance Isolation voltage volts TCR 1000 ppm/ C Resistance Tolerance WW types, <0R68, 1700ppm; 0R68, 200ppm: MO types all values 350ppm % 5(J) Standard Values E24 preferred Ambient temperature range C -55 to +155 C * Other styles (radial/pluggable); sizes, and 30, 40, 50 W types are available to special order. Physical Data Dimensions (mm) and weight (g) 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 d nom 0.05 H W f L f Min bend radius, all types 1.6 mm Packaging Our standard packaging for SQP Series is bulk pack General Note Note General Welwyn Components reserves the right to make changes in product specification without notice or liability. TT theto right to make changes in product specification without notice or liability. A subsidiary of All electronics informationreserves is subject Welwyn's own data and is considered accurate at time of going to print. All information is subject to TT electronics' own data and is considered accurate at time of going to print. TT electronics plc www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) Welwyn Components Limited * Bedlington, Northumberland NE22 7AA, UK Issue C * 0 07.06 Telephone: +44 (0) 1670 (c) TT electronics plc822181 * Facsimile: +44 (0) 1670 829465 * Email: info@welwyn-tt.com * Website: www.welwyn-tt.com 70 09. 11 Ceramic Case Resisters Resistors - Ceramic Case Resistors - Ceramic Case Resisters - Resistors Wirewound / Metal Wirewound / Metal OxideOxide SQP Series Wirewound SQP Series Welwyn Components / Metal Oxide Welwyn Components SQP Series Construction A high purity ceramic rod, with force fit end caps onto which is wound a wire element: or a deposited metal oxide film Construction (depending on value). The element is fitted into a ceramic case with fireproof insulation cement. 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. Termination Details Material The tinned copper lead wires are internally welded to the resistance element end caps. Termination Details Solderability The requirements of welded IEC 115-1 Clause 4.17.3.2 Material The terminations tinned coppermeet lead the wires are internally to the resistance element end caps. Strength Solderability The The terminations terminations meet meet the the requirements requirements of of IEC IEC 86.2.21 115-1 Clause 4.17.3.2 Strength The terminations meet the requirements of IEC 86.2.21 Performance Data Performance Data Maximum Load at rated power (1000hrs at 70C) R% Derating from rated power at 70 C Load at rated power (1000hrs at 70C) Short Deratiterm ng frooverload m rated * power at 70 C R% R% 5% +0.05 Maximum See Graph 5% +0.05 2S% ee+G0r.a0p5h Damp heat overload steady state Short term * (56 days, 40C, 90% RH) Temperature rapid change Damp heat steady state (56 days, 40C, 90% RH) Resistance to rapid solderchange heat Temperature R R% % R R% % 2 2% %+ +0 0..0 05 5 2 % + 0 . 0 2% +0.05 5 Pulse handling Resistance to solder heat R% R R% % 1 2% %+ +0 0..0 05 5 Data available by 1% +0.05 request Pulse handlingthe lower of 5x rated power, or 2.5x LEV for 5 secs. Metal Oxide:: the lower of 6.25x Datarated available by request *(Wirewound:: power, or 2.5x LEV for 5 secs) *(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 118% P 118% 100% P P 100% Wirewound types 100% Metal Oxide types 100% Metal Oxide types Wirewound types 50% 50% 50% 50% TC 0% 0%-30 25 70 155 TC 240 -30 25 70 155 240 TC 0% 0%-30 70 155 TC 240 -30 70 155 240 Marking Marking Type reference, resistance value and tolerance are legend marked onto the upper surface. Type reference, resistance value and tolerance are legend marked onto the upper surface. Flammability Flammability The resistor will not burn or emit incandescent particles under any condition of applied temperature or The resistor will not burn or emit incandescent particles under any condition of applied temperature or overload. overload. Solvent resistance Solvent The bodyresistance protection and marking are resistant to all normal industrial solvents suitable for printed The body protection and marking are resistant to all normal industrial solvents suitable for printed circuits. circuits. Ordering Ordering Procedure Procedure Example: 5,000 SQP3 at 1.2 kilohms and 5% tolerance in standard bulk pack optionExample: 5,000 SQP3 at 1.2 kilohms and 5% tolerance in standard bulk pack optionModel SQP3 - Model SQP3 - Value (use IEC62 code) Value (use IEC62 code) Tolerance Tolerance (use (use IEC62 IEC62 code) code) 1K2 1K2 J J B5 B10 B5 B10 JJ 5% 5% Packing Packing CODE CODE B5 B5 B15 B15 B1 B1 Family Family Bulk Bulk Pack Pack SQP2,3,5 SQP2,3,5 Qty/ Qty/ Carton Carton 5000 5000 SQP7,10 SQP7,10 SQP15,20 SQP15,20 1500 1500 1000 1000 General Note TT electronics reserves the right to make changes in product specification without notice or liability. (c) Welwyn (c) Welwyn Components Components Limited Limited Bedlington, Bedlington, Northumberland Northumberland NE22 NE22 7AA, 7AA, UK UK All information is subject to TT electronics' own data and is considered accurate at time of going to print. Issue 07.06 Telephone: 0 Issue C C **0 07.06 Telephone: +44 +44 (0) (0) 1670 1670 822181 822181 ** Facsimile: Facsimile: +44 +44 (0) (0) 1670 1670 829465 829465 ** Email: Email: info@welwyn-tt.com info@welwyn-tt.com ** Website: Website: www.welwyn-tt.com www.welwyn-tt.com www.bitechnologies.com www.irctt.com www.welwyn-tt.com (c) TT electronics plc 71 09. 11