The CMP0805-FX-3901ELF from Bourns is a Power Resistor with Resistance 3900 Ohms, Tolerance ±1 %, Power Rating 0.5 W, Voltage Rating 200 V, Temperature Operating Range -55 to 155 Degree C. Tags: Surface Mount. More details for CMP0805-FX-3901ELF can be seen below.