The WR12X4021FTL is a 4.02k ±1% 1/4w 1206 chip resistor with a surface mount design, manufactured by Walsin. The resistor is RoHS compliant and is suitable for use in high-frequency electronic circuits. It is characterized by low ESR and high power dissipation. The resistor is offered in tape-and-reel packaging for automated placement and is suitable for use in a wide range of applications, including medical equipment, automotive electronics, telecom equipment, and consumer electronics.