This metal film resistor is 1/4W 1% of 3.9R Ohm Metal film resistors have good accuracy, small tolerance range, stable performance, and simple and lightweight structure. Metal film resistors have a wide range of resistance values to choose from Metal film resistor, winding resistor, TO-220 high-power load resistor Has played a good role in the electronics industry and military aerospace fields under high-precision requirements Applied to precision electronic circuits, suitable for Arduino, electronic and electrical communication equipment, musical instruments or applications, electronics, etc