SF-2 Surface Mount / Precision Metal Film Resistors • • • • • Resistances from 50 to 3MOhms Tolerance to ±0.05% TCR’s to ± 5ppm/°C Very Low Inductance Excellent Long Term Stability SPECIFICATIONS Specification Value Resistance Range 50Ω to 3MΩ Power Rating 1W ( TAmbient = 70°C ) Temperature Range -25°C to +125°C ( TC ≥ 25ppm/°C ) -10°C to +85°C ( TC < 25ppm/°C ) Dielectric Strength 750 VAC Insulation Resistance >1000 MOhms / Dry Voltage Coefficient 0.5 ppm/V ( Max ) Resistances Available at these Tolerances TCR ( ±ppm/K ) ±0.05% ±0.10% ±0.25% ±0.50% ±1% 5 50Ω - 250KΩ 10Ω - 250KΩ 10Ω - 250KΩ 10Ω - 250KΩ 10Ω - 250KΩ 10 50Ω - 510KΩ 10Ω - 510KΩ 10Ω - 510KΩ 10Ω - 510KΩ 10Ω - 510KΩ 15 50Ω - 510KΩ 10Ω - 1MΩ 10Ω - 1.5MΩ 10Ω - 1.5MΩ 10Ω - 1.5MΩ 25 50Ω - 510KΩ 10Ω - 1MΩ 10Ω - 1.5MΩ 5Ω - 2MΩ 5Ω - 2MΩ 50 50Ω - 510KΩ 5Ω - 1MΩ 3Ω - 1.5MΩ 2Ω - 2MΩ 1Ω - 3MΩ Power Derating Curve 120 TC 80 >= 60 m pp ppm 40 25 25 TC < Power ( % ) 100 20 0 0 25 50 75 100 125 150 175 Ambient Temperature (°C) Ordering Information Part Description: Part Type - Resistance - Tolerance - TCR Example: SF-2 200 kOhm 0.1% 5ppm