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FA1 Datasheet(PDF) 1 Page - Welwyn Components Limited |
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FA1 Datasheet(HTML) 1 Page - Welwyn Components Limited |
1 / 2 page Flameproof Metal Film Resistors FA Series • Approval to BS CECC 40101-019 and 40101-024 • Resistance range 0.1 ohm to 1M ohm • Flameproof protection FA025 FA05 FA1 FA94 Power rating at 70°C watts 0.5 1.0 1.5 2.0 Resistance range ohms 0R1 to 1M 0R1 to 1M 0R1 to 1M 2R6 to 1M0 Limiting element voltage volts 350 350 500 700 Isolation voltage volts 500 500 700 1000 TCR ppm/°C 150 Resistance tolerance % ≤1 ohm: 5, 10 >1 ohm: 1, 2, 5 Ambient temperature range °C -55 to 155 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 Electrical Data * Approved CECC 40101-019 / 40101-024 FX EX DX CX Power rating at 70°C watts 0.25 0.5 1.0 2.0 Resistance range ohms 1 to 1M 1 to 1M 1 to 1M 10 to 100k Limiting element voltage volts 250 350 500 700 Isolation voltage volts 500 700 1000 1400 **TCR ppm/°C 250 Resistance tolerance % 1, 2, 5 Ambient temperature range °C -55 to 125 Standard values E24 preferred Thermal impedance °C/watt 140 110 90 60 Issue B · 03.02 A subsidiary of TT electronics plc Welwyn Components 145 *These specificatios are identical except that BS CECC 40101-024 includes flammability tests. **Specification TCR - actual TCR as for commercial. L D f d Dimensions (mm) & Weight (g) PCB Min. mounting bend Type L Max D Max f min d nom centres radius Wt.nom FA025 6.2 2.5 21.0 0.6 10.2 0.6 0.3 FA05 9.0 3.6 19.6 0.8 12.7 1.2 0.5 FA1 14.5 5.3 23.6 0.8 20.3 1.2 1.1 FA94 13.1 5.9 29.5 0.8 19.5 1.2 1.1 Physical Data |
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