The 81 3028 from Smiths Interconnect is a Resistor with Resistance 5 to 200 Ohms, Power Rating 250 W, Tolerance ±5%. Tags: Surface Mount, Chip, 5 to 200 Ohms, 10 to 400 Ohms, 500 W, Tab & Cover Thin Film RF Resistor. More details for 81 3028 can be seen below.