WPR 2-TO5 Special Resistors • • • • • • Resistances from50Ohm to 600kOhms Power Rating to 0.25Watt Resistance Tolerances to ±0.01% TCR to ±5ppm/K Load Stability to 0.1% Hermetically Sealed SPECIFICATIONS Type WPR 2-TO5 Resistance Range 50 Ohms to 600 kOhms Other values upon request Power rating (70°C) 0.25 W Tolerances 0.01% / 0.1% / 0.25% / 0.5% / 1% Other tolerances upon request Stability 0.1% Temperature Coefficient ±5ppm/K (-40 to +125°C) Thermal EMF < 0.1µV/K Operating Temperature Range -55 to 130°C Resistor Material NiCr Connector Material Cu / gold-coat Terminals 2 Derating 120 Power (% from nominal power) 100 80 60 40 20 0 25 50 70 85 100 115 130 Ambient Temperature (°C) Dimensions Dimension mm tol. (±mm) inches tol. (±inches) A 19.40 1.0 0.76 0.039 B 8.15 0.2 0.32 0.008 C 5.80 0.1 0.23 0.004 D 9.13 0.2 0.36 0.008 E 5.08 0.1 0.20 0.004 F Ø0.45 0.1 Ø0.018 0.004 G 45° 30’ 45° 30’ Ordering Information Part Number - Resistance - Tolerance WPR 2-TO5 330Ohms 0.01% Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom. http://www.willow.co.uk + 44 (0) 1342 835234 + 44 (0) 1342 834306 [email protected] rev. 03/2006A