The 81 3008B from Smiths Interconnect is a Resistor with Resistance 5 to 250 Ohms, Power Rating 12 W, Tolerance ±5%. Tags: Surface Mount, Chip, 5 to 250 Ohms, 5 to 200 Ohms, 50 W, Tab & Cover Thin Film RF Resistor. More details for 81 3008B can be seen below.