RTT03392JTP is a surface-mount chip resistor manufactured by RALEC. It has a resistance of 3.9KOhms ±5%, a power rating of 1/10W, and size of 0603. It is RoHS compliant, meaning it is free from hazardous materials such as lead, mercury, and arsenic. It can be used in a variety of applications, such as board level resistors, small signal design, and DC circuit designs.