The 81 7021TC from Smiths Interconnect is a Resistor with Resistance 7 to 250 Ohms, Power Rating 150 W, Tolerance ±5%. Tags: Tab & Cover, 7 to 250 Ohms, 10 to 250 Ohms, 40 W, Flanged Thin Film RF Resistor. More details for 81 7021TC can be seen below.