SWT/EWT Series Stackpole Electronics, Inc. Non-Flammable Edgewound Tubular Wirewound Resistor Features: * * * * * * * * Resistive Product Solutions High current capability RoHS compliant / lead-free Non-inductive style only available with silicone coating (NSWT) Suitable for soldering or thru bolt connections Wirewound ribbon on ceramic substrate SWT - Silicone coating provides temperature handling up to 350C SWTA - Adjustable version EWT - Vitreous enamel coating provides temperature handling up to 500C Electrical Specifications SWT Ohmic Range () and Tolerance 5% and 10% NSWT EWT 0.1 - 51K 0.1 - 53 0.1 - 5K 2,500 1 - 30K 0.1 - 100 0.1 - 10K 50W 2,500 0.1 - 50K 0.1 - 275 0.1 - 20K SWT100 / EWT100 100W 2,500 0.1 - 100K 0.12 - 680 0.1 - 50K SWT150 / EWT150 150W 2,500 0.1 - 150K 0.22 - 1.5K 0.1 - 80K SWT175 / EWT175 175W 2,500 0.15 - 100K 0.24 - 1.3K 0.1 - 100K SWT200 / EWT200 200W 2,500 0.1 - 200K 0.25 - 1.35K 0.1 - 120K SWT225 / EWT225 225W 2,500 0.2 - 130K 0.3 - 1.7K 0.12 - 130K SWT250 / EWT250 250W 2,500 0.5 - 250K 0.33 - 1.8K 0.5 - 200K SWT300 / EWT300 300W 2,500 0.5 - 300K 0.42 - 2.25K 0.5 - 240K SWT400 / EWT400 400W 2,500 0.5 - 400K 0.54 - 3K 0.5 - 300K SWT500 / EWT500 500W 2,500 0.5 - 500K 0.77 - 4.2K 0.5 - 400K SWT700 / EWT700 700W 2,500 1 - 600K 1 - 5.3K 1 - 500K SWT1000 / EWT1000 1000W 2,500 1 - 1M 1.4 - 7.6K 1 - 750K SWT1300 / EWT1300 1300W 2,500 1 - 1.3M 2 - 10K 1 - 1M Type / Code Power Rating (Watts) @ 70C Dielectric Strength VAC SWT12 / EWT12 12W 1,000 SWT25 / EWT25 25W SWT50 / EWT50 Rev Date: 03/25/2011 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 1 www.seielect.com marketing@seielect.com SWT/EWT Series Non-Flammable Edgewound Tubular Wirewound Resistor Stackpole Electronics, Inc. Resistive Product Solutions Mechanical Specifications Type / Code(1) SWT12 / EWT12 SWT25 / EWT25 SWT50 / EWT50 SWT100 / EWT100 SWT150 / EWT150 SWT175 / EWT175 SWT200 / EWT200 SWT225 / EWT225 SWT250 / EWT250 SWT300 / EWT300 SWT400 / EWT400 SWT500 / EWT500 SWT700 / EWT700 SWT1000 / EWT1000 SWT1300 / EWT1300 OD ID F L Unit 0.31 0.04 7.94 1.0 0.56 0.04 14.3 1.0 0.56 0.04 14.3 1.0 0.75 0.04 19.1 1.0 1.1 0.04 28.0 1.0 1.13 0.04 28.6 1.0 1.38 0.04 35.0 1.0 1.125 0.04 28.6 1.0 1.57 0.04 40 1.0 1.57 0.04 40 1.0 1.57 0.04 40.0 1.0 2.5 0.04 63.5 1.0 1.97 0.04 50.0 1.0 2.50 0.04 63.5 1.0 2.56 0.04 65.0 1.0 0.188 0.04 4.76 1.0 0.31 0.04 7.94 1.0 0.31 0.04 7.94 1.0 0.5 0.04 12.7 1.0 0.75 0.04 19.1 1.0 0.75 0.04 19.1 1.0 0.75 0.04 19.1 1.0 0.75 0.04 19.1 1.0 1.125 0.04 28.6 1.0 1.125 0.04 28.6 1.0 1.125 0.04 28.6 1.0 1.75 0.04 44.5 1.0 1.41 0.04 35.7 1.0 1.75 0.04 44.5 1.0 1.75 0.04 44.5 1.0 0.47 0.04 12.0 1.0 0.47 0.04 12.0 1.0 0.75 0.04 19.0 1.0 0.67 0.04 17.0 1.0 0.67 0.04 17.0 1.0 0.67 0.04 17.0 1.0 0.67 0.04 17.0 1.0 0.71 0.04 18.0 1.0 0.71 0.04 18.0 1.0 0.71 0.04 18.0 1.0 0.71 0.04 18.0 1.0 1.1 0.04 28.0 1.0 1.1 0.04 28.0 1.0 1.18 0.04 30.0 1.0 1.18 0.04 30.0 1.0 1.75 0.08 44.5 2.0 2.00 0.08 51.0 2.0 4.00 0.08 102.0 2.0 6.5 0.08 165.0 2.0 7.11 0.08 206.0 2.0 8.5 0.08 216.0 2.0 8.74 0.08 222.0 2.0 10.5 0.08 267.0 2.0 8.74 0.08 222.0 2.0 10.71 0.08 272.0 2.0 13.46 0.08 342.0 2.0 12 0.08 305.0 2.0 18.18 0.08 462.0 2.0 20 0.08 508.0 2.0 26.26 0.08 667.0 2.0 inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm inches mm (1) EWT and NSWT series will have the same Mechanical Specifications as SWT series 100 Percent Rated Power (%) Power Derating Curve: 80 60 40 20 25 30 100 150 200 250 300 350 Ambient Temperature (C) Rev Date: 03/25/2011 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 2 www.seielect.com marketing@seielect.com SWT/EWT Series Stackpole Electronics, Inc. Non-Flammable Edgewound Tubular Wirewound Resistor Resistive Product Solutions How to Order 1 2 3 4 5 6 7 8 9 10 11 12 E W T M 5 0 J B 2 0 0 R Power 12W 25W 50W 100W 150W 175W 200W 225W 250W 300W 400W 500W 700W 1000W 1300W Tolerance Code Tol J 5% K 10% Code B Product Series Silicone Coating (std) Vitreous Enamel Non-inductive Silicone NSWT Coating SW T EW T Code M S L A Description Std Tab Connection Mounting Hardware Spring Clips Welded Straight Leads Adjustable Code 12 25 50 100 150 175 200 225 250 300 400 500 700 1000 1300 Packaging Description Size Quantity Bulk All Sizes Each Resistance Value Four characters with the multiplier used as the decimal holder. 0.1 ohm = R100 1 ohm = 1R00 10 Kohm = 10K0 Legacy Part Number (before January 3, 2011): SEI Type Termination Power Rating Nominal Resistance Tolerance Packaging EWT M 50 200 5% B Type Description SWT Silicone Coating (std) EWT Vitreous Enamel NSWT Non-Inductive Silicone Coating Code Description Std Tab Connection M Mounting Hardware S Spring Clips L Welded Straight Leads A Adjustable Code 12 25 50 100 150 175 200 225 250 300 400 500 700 1000 1300 Tolerance 5% 10% Code Description B bulk Rev Date: 03/25/2011 This specification may be changed at any time without prior notice Please confirm technical specifications before you order and/or use. 3 www.seielect.com marketing@seielect.com