The UAL-300 from Riedon Resistors is a Power Resistor with Resistance 0.01 to 68000 ohm, Tolerance ±0.01 to 10 %, Power Rating 75 to 300 W, Voltage Rating 5500 V, Temperature Operating Range -55 to 275 Degree C. Tags: Through Hole. More details for UAL-300 can be seen below.