The RCA0402-AU e4 from Vishay is a Power Resistor with Resistance 1.0 to 100000000 ohm, Tolerance ±1 to 5 %, Power Rating 0.1 W, Voltage Rating 50 V, Temperature Operating Range -55 to 175 Degree C. Tags: Surface Mount. More details for RCA0402-AU e4 can be seen below.