The RN 3WS 220K F T/B A1 with Metal Film Resistor (TH) Axial, 5x15mm RoHS is an electronic component manufactured by Tyohm. It is a type of resistor, a passive two-terminal electrical component that reduces electrical current and limits the voltage. This resistor is a thermal, axial type with a size of 5x15mm. It has a tolerance of “F”, meaning the actual resistance could be as much as 220,000 ohms, and its resistance tolerance is 10%. It is RoHS compliant, meaning no hazardous materials have been used in production of the part, aiding in environmental protection.