Riedon UAL-250, 56 Ohm, 250 Watt, 1 Percent,Aluminum Housed Wirewound ResistorCondition: * Used, tested for basic operation.* May have thermal paste residue on bottom* May have minor dings and scratches, as well as installation marks.* Picture is representative; your actual item may vary slightly.Additional Notes:* Power Rating: Commercial: 250 Watt (0.125″ Alum. Plate, 294 inch or equiv) MIL: 120 Watt (0.125″ Alum. Plate, 294 inch or equiv) Free Air: 100 Watt* MIL-R-39009 / MIL-R-18546 Style: RER-80 / RE-80* Resistance: 56 Ohm* Tolerance: 1 Percent* Temperature Range: -67 Degree F to +527 Degree F (-55 Degree C to +275 Degree C)* Dielectric Strength: 5500 Volt AC* Construction: Centerless ground ceramic core Tinned copper or copperweld leads High-temperature epoxy molding compound Anodized aluminum housing All welded terminations* Dimensions, Excluding Terminals and Flanges (LxWxH): 4.5″ x 2.125″ x 2.19″* Dimensions, Overall (LxWxH): 7.0″ x 3.0″ 2.19″ (178 x 76.2 x 55.6mm)RiedonUAL-250-56