FPA250 Thick Film Power Resistors Due to a Non-Inductive design these elements are ideally suited for high frequency and pulse load applications. Non Inductive Performance for HF Applications Power Applications 100W to 250W Very Good Power/Volume Ratio RoHS Compliant Characteristics Power rating: 250W (heatsink at 50C) Partial discharge: 10pC / 5000Vac Resistance range: From 1R to 2M E6 Series Typical inductance: 40nH typical Tolerance (Code): Standard J (5%) and K (10%) Parallel capacitance: 40pF Also available F (1%) on request Capacitance/Mass: 120pF Temperature coefficient: 100ppm/C Overload: 4Pn x 10 sec Max working voltage: 5000Vac Thermal resistance: 0.15C/W Working temperature range: -55C to +155C Heatsink flatness: 0.05mm max Dielectric strength: 7000Vac Heatsink surface finish: 6.3 m max Insulation resistance: 10Gohm at 500V Thermal grease: Required Creepage distance: 42mm min Max torque for contacts: 2Nm (static) Air gap distance 14mm Max torque for mounting: 1.8Nm (static) Derating Curve Ordering Procedure 100 Standard Resistor Specify Series, Watts, Ohmic Value, Tolerance Code 75 e.g.: FPA250 10R J 50 25 0 0 25 50 100 125 155 Temperature C ARCOL UK Limited, The information contained herein does not form part of Threemilestone Ind. Estate, a contract and is subject to change without notice. Arcol Truro, Cornwall, TR4 9LG, UK. operate a policy of continual product development, therefore, T +44 (0) 1872 277431 specifications may change. F +44 (0) 1872 222002 It is the responsibility of the customer to ensure that the E sales arcolresistors.com component selected from our range is suitable for the intended www.arcolresistors.com application. If in doubt please ask Arcol. Page 1 of 2 8/12.14 Rated Power %FPA250 Thick Film Power Resistors Dimensions (mm) 1 M5 21 17 12.8 4 R2 28.5 R1 12.5 R2 60 36 4.6 5 21 3 34 2 14 40.5 16.5 57 21.5 67 26 Pulse rating For pulse duration >5.0 S, and at maximum allowed voltage levels, the maximum peak energy of 0.3J is limited by the average power rating of 250W. For pulse duration times <5.0 S it has not been possible to reliably establish maximum energy failure point, although it is known that the pulse capability is higher than the curve shown in the graph below. Whilst these parts are designed to operate in high frequency circuits, where dv/dt is faster than 250V/S, it is recommended that the resistor is tested under worst case application conditions to ensure that unknown attribute of the application waveform are completely accounted for. ARCOL UK Limited, The information contained herein does not form part of Threemilestone Ind. Estate, a contract and is subject to change without notice. Arcol Truro, Cornwall, TR4 9LG, UK. operate a policy of continual product development, therefore, T +44 (0) 1872 277431 specifications may change. F +44 (0) 1872 222002 It is the responsibility of the customer to ensure that the E sales arcolresistors.com component selected from our range is suitable for the intended www.arcolresistors.com application. If in doubt please ask Arcol. Page 2 of 2 8/12.14