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PW-20E Datasheet(PDF) 3 Page - Welwyn Components Limited |
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PW-20E Datasheet(HTML) 3 Page - Welwyn Components Limited |
3 / 4 page General Purpose Power Wirewound Resistors PW Series • 20 watts to 50 watts • 0.10 ohms to 2.0K ohms • ±10% or ±5% tolerance • Customs 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 113 PW-20E PW-30 PW-40 PW-50E Power rating at 25°C watts 20 30 40 50 Resistance range ohms 0R1 to 2K 0R5 to 1K2 0R65 to 1K5 0R08 to 1K8 Electrical Data Issue B · 03.02 A subsidiary of TT electronics plc Welwyn Components Please note: When ordering the alternative configuration please add an ‘A’ after the part number. (i.e., PW-2A) 0.032 ±0.0025 0.205 or 0.187 ±0.005 0.157 ±0.020 0.250 (Typ.) 0.5 ±0.030 0.5 ±0.030 5/32 Dia. Thru (2) A 0.069 ±0.005 0.25 ±0.031 0.032 ±0.0025 0.375 0.200 (Typ.) 0.135 ±0.015 0.25 0.75 0.282 ±0.020 0.75 ±0.030 0.75 ±0.030 0.875 5/32 Dia. Thru (2) A B 0.125 ±0.015 PW-20E Wirewound PW-30, 40 and 50E Wirewound PW-20E Alternate Terminal Configuration Printed Circuit Terminal Dimensions (Inches) A ±0.030 B ±0.060 PW-20E 1.875 2.50 PW-30 2.00 2.55 PW-40 2.45 3.00 PW-50E 3.075 3.625 2.000 ±0.040 0.187 ±0.010 1.410 ±0.040 1.050 Min. 0.060 Dia. (2) 0.500 ±0.030 0.500 ±0.030 0.840 ±0.040 0.250 min. 0.020 PW-15E 100 80 60 40 20 0 0 50 100 150 200 250 Ambient Temperature ( °C) PW-20E, PW-30, PW-40 PW-50E without bracket 300 250 200 150 100 50 0 0 25 50 75 100 125 Percent of Rated Load PW-30 PW-40 PW-50E PW-20E With Bracket: PW-30 Increased to 40 watts PW-40 Increased to 50 watts PW-50 Increased to 60 watts Power Derating Temperature Rise |
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