RESISTOR, 20W 56R; Resistance:56ohm; Resistance Tolerance:± 5%; Power Rating:2W; Voltage Rating:250V; Temperature Coefficient:± 150ppm/°C; Resistor Element Material:Thick Film; Resistor Case Style:TO-220; Resistor Mounting:Through Hole; SVHC:No SVHC (15-Dec-2010); Dielectric Strength VAC:2000V; Element Limiting Voltage:250V; External Depth:4.5mm; External Length / Height:28.7mm; External Width:10.1mm; Full Power Rating Temperature:25°C; Lead Length:13.7mm; Operating Temperature Max:155°C; Operating Temperature Min:-55°C; Operating Temperature Range:-55°C to +155°C; Overload Capability:2 x Pr for 5 secs; Package / Case:TO-220; Power Rating with Heatsink:20W; Series:RTO; Temperature Coeff. +:150ppm/°C; Temperature Coeff. -:150ppm/°C; Thermal Resistance:6.5°C/W; Tolerance +:5%; Tolerance -:5%; Voltage Rating V DC:250V