The RN 1/8W 18K F T/B A1 with Metal Film Resistor (TH) Axial, 1.7x3.5mm RoHS is an axial leaded resistor manufactured by Tyohm. It has a resistance value of 18K ohms, a tolerance of 1%, and is rated at 1/8 watt power level. This resistor features a metal film construction, which helps to reduce noise and provide superior tolerance in temperature and time. It is RoHS compliant, which means it is lead-free, making it safe for use in any application. This resistor is also extremely small in size, measuring just 1.7 x 3.5 mm, making it ideal for a wide variety of projects.