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WP2S-680RGA5 Datasheet(PDF) 1 Page - Welwyn Components Limited |
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WP2S-680RGA5 Datasheet(HTML) 1 Page - Welwyn Components Limited |
1 / 4 page Compact Flameproof Power Wirewound Resistors WP-S Series • Small size for power rating • Enhanced pulse handling capability • Flameproof protection • SMD Z-form available • RoHS compliant with Pb-free terminations 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 Issue E · 07.06 A subsidiary of TT electronics plc Welwyn Components Dimensions (mm) & Weight (g) Type L max D max f min d nom PCB Min Wt. mount bend nom centres radius WP1S 6.2 2.8 21.20 0.6 10.20 0.6 0.22 WP2S 9.0 3.6 19.80 12.70 0.50 WP25S 12.5 4.5 17.80 18.40 0.50 WP3S 14.5 5.2 24.55 20.30 1.10 WP4S 13 5.6 22.75 18.90 1.00 WP5S 16.5 7.0 23.55 22.86 1.75 WP7S 25.0 8.8 28.30 31.40 4.40 A high purity ceramic substrate is assembled with interference fit end caps to which are welded the terminations. The resistive element is wound on the substrate and welded to the caps. Flameproof silicone cement coating is applied prior to marking with indelible ink. The components are then leadformed if required and packed. Electrical Data Physical Data Construction D d Lf WP1S WP2S WP25S WP3S WP4S WP5S WP7S Power rating at 25°C watts 1 2 2.5 3 4 5 7 5s overload rating at 25ºC watts 5 10 12.5 15 20 25 35 Short pulse performance See Pulse Performance graphs Resistance range ohms R068 to 430R R05 to 900R R05 to 900R R01 to 2K2 R01 to 10K R015 to 6K8 R15 to 10K Limiting element voltage volts 50 50 75 100 100 150 150 TCR ppm/°C <1R: 350 ≥1R: 200 Isolation Voltage volts 250 350 500 700 Resistance Tolerance % Standard Values E24 preferred Thermal Impedance °C/watt 140 110 90 82 62 54 35 Ambient temperature range °C -55 to +155 <20R: 5 ≥20R: 1, 2, 5 <20R: 5 ≥20R: 1, 2, 5 <R10: 5 ≥R10: 1, 2, 5 0.8 1.2 |
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