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T18 Datasheet(PDF) 2 Page - Vishay Siliconix |
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T18 Datasheet(HTML) 2 Page - Vishay Siliconix |
2 / 4 page www.vishay.com For technical questions, contact: sfer@vishay.com Document Number: 51027 80 Revision: 26-Jun-07 T18 Vishay Sfernice 3/4" Rectangular Multi-Turn Cermet Trimmer MECHANICAL SPECIFICATIONS Mechanical Travel 18 turns ± 5 Operating Torque (max. Ncm) 2 End Stop Torque clutch action Unit Weight (max. g) 1 Wiper (actual travel) positioned at approx. 50 % ENVIRONMENTAL SPECIFICATIONS Temperature Range - 55 °C to + 125 °C Climatic Category 55/125/56 Sealing fully sealed container IP67 POWER RATING CHART ELECTRICAL SPECIFICATIONS Resistive Element cermet Electrical Travel 15 turns ± 1 Resistance Range 10 Ω to 2.2 MΩ Standard series E3 1 - 2.2 - 4.7 and 1 - 2 - 5 Tolerance Standard ± 10 % On Request ± 5 % Power Rating Linear 0.50 W at + 70 °C Logarithmic not applicable Temperature Coefficient See Standard Resistance Element Table Limiting Element Voltage (Linear Law) 250 V Contact Resistance Variation 2 % Rn or 1 Ω End Resistance (Typical) 1 Ω Dielectric Strength (RMS) 1000 V Insulation Resistance (500VDC) 106 M Ω 0 20 40 100 125 140 70 60 0.50 0 AMBIENT TEMPERATURE IN °C 80 0.25 0.75 PERFORMANCE TESTS CONDITIONS TYPICAL VALUES AND DRIFTS ΔRT RT (%) ΔR1-2 R1-2 (%) Load Life 1000 hours at rated power 90'/30' - ambient temp. 70 °C ± 1 % ± (3 % + 5 Ω) Contact res. variation: < 3 % Rn Climatic Sequence Phase A dry heat 125 °C Phase B damp heat Phase C cold - 55 °C Phase D damp heat 5 cycles ± 0.5 % ± 1 % Long Term Damp Heat 56 days ± 0.5 % ± 1 % Dielectric strength: 1000 V RMS Insulation resistance: > 104 M Ω Rapid Temperature Change 5 cycles - 55 °C at + 125 °C ± 0.5 % ΔV1-2 V1-3 ≤ ± 1 % Shock 50 g at 11m secs 3 successive shocks in 3 directions ± (0.2 % + 3 Ω) ± 0.3 % Vibration 10 - 55 Hz 0.75 mm or 10 g during 6 hours ± 0.2 % ΔV1-2 V1-3 ≤ ± 0.3 % Rotational Life 200 cycles ± (2 % + 3 Ω) Contact res. variation: < 2 % Rn |
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