The 81 8004B from Smiths Interconnect is a Resistor with Resistance 10 to 250 Ohms, Power Rating 2 W, Tolerance ±5%. Tags: Surface Mount, Chip, 10 to 250 Ohms, 5 to 200 Ohms, 250 W, Surface Mount / Chip, Thin/Thick Film RF Resistor. More details for 81 8004B can be seen below.