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| Ceramic Case Resistors - Resisters Wirewound / Metal Oxide SQP Series * * * * 2 watts to 20 watts* Resistance 0R1 to 100K High overload capability RoHS compliant Welwyn Components Electrical Data SQP2 Power rating at 70 C Resistance range Wirewound Metal Oxide (Ohms) Limiting element voltage Thermal impedance Isolation voltage TCR Resistance Tolerance Standard Values Ambient temperature range C volts dc or ac rms C/watt volts ppm/ C % watts 2 0R1-50R 51R47K 150 50 SQP3 3 0R1100R 100R47K 300 45 SQP5 5 0R1100R 110R47K 350 30 SQP7/7S 7 0R1-100R (7 & 7S) 110R-47K (7 Only) 500 (7S-350) 28 1000 WW types, <0R68, 1700ppm; 0R68, 200ppm: MO types all values 350ppm 5(J) E24 preferred -55 to +155 C SQP10 10 0R1200R 220R68K 750 23 SQP15 15 0R1200R 220R68K 1000 16 SQP20 20 0R1500R 510R100K 1000 13 * Other styles (radial/pluggable); sizes, and 30, 40, 50 W types are available to special order. Physical Data Type SQP2 SQP3 SQP4 SQP5 SQP7 SQP7S SQP10 SQP15 SQP20 L Max 18.5 22.5 22.5 22.5 36.0 26.0 50.0 50.0 61.0 W Max 7.5 8.5 10 10 10 10 10 13.5 14.5 H Max 7.5 8.5 10 10 10 10 10 13.5 14.5 d Nom 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 0.75 Weight gm 2.2 3.5 5.0 5.0 8.2 6.0 11.0 17.4 25.0 35 1.0 L 35 1.0 W H d nom 0.05 Min bend radius, all types 1.6 mm Packaging Our standard packaging for SQP Series is bulk pack - resistors are supplied loose packed in plastic bags or boxes.Quantities/ bag, box, carton: SQP2, 3: 50/bag, 500/box, 5000/carton :: SQP5: 140/box, 1400 carton SQP7,10:150/box,1500/carton :: SQP15,20:100/box, 1000/carton 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. A subsidiary of TT electronics plc (c) 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 D ** 01.07 Issue C 07.06 70 Ceramic Case Resisters - Resistors Wirewound / Metal Oxide 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 (depending on value). The element is fitted into a ceramic case with fireproof insulation cement. Welwyn Components Termination Details Material Solderability Strength The tinned copper lead wires are internally welded to the resistance element end caps. The terminations meet the requirements of IEC 115-1 Clause 4.17.3.2 The terminations meet the requirements of IEC 86.2.21 Performance Data Maximum Load at rated power (1000hrs at 70C) Derating from rated power at 70 C Short term overload * Damp heat steady state (56 days, 40C, Temperature rapid change Resistance to solder heat Pulse handling 90% RH) R% R% R% R% R% 5% +0.05 See Graph 2% +0.05 2% +0.05 2% +0.05 1% +0.05 Data available by request *(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% 100% Wirewound types P 100% Metal Oxide types 50% 50% 0% -30 TC 25 70 155 240 0% -30 TC 70 155 240 Marking Type reference, resistance value and tolerance are legend marked onto the upper surface. Flammability The resistor will not burn or emit incandescent particles under any condition of applied temperature or overload. Solvent resistance The body protection and marking are resistant to all normal industrial solvents suitable for printed circuits. Ordering Procedure Example: 5,000 SQP3 at 1.2 kilohms and 5% tolerance in standard bulk pack optionModel SQP3 - 1K2 J B5 B10 CODE B5 B15 B1 Bulk Pack Family SQP2,3,5 SQP7,10 SQP15,20 Qty/ Carton 5000 1500 1000 Value (use IEC62 code) Tolerance (use IEC62 code) J 5% Packing (c) 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 D * 07.06 Issue C 01.07 71 |
Price & Availability of SQP20
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