The CRW 4020 from Riedon Resistors is a Power Resistor with Resistance 0.1 to 100000000 ohm, Tolerance ±1 to 20 %, Power Rating 2.0 W, Voltage Rating 500 to 1500 V, Temperature Operating Range -55 to 155 Degree C. Tags: Surface Mount. More details for CRW 4020 can be seen below.