.047uF (.047 mfd) Metallized polyester non inductive capacitor. This is the famous Mallory® Mustard Cap. Its small physical size and axial style leads make these caps a pleasure to use in guitar circuit wiring. 10% tolerance.

The .047 cap value is commonly associated with single coil guitar pickups and commonly used with the tone circuits for Strat® or Tele® guitars and other manufacturers using similar pickup designs where one may want the option to remove a lot of brightness. They can also be used with other pickup types if you desire more highs cut or are attempting to have a unique and darker tone.

Professional installation is strongly recommended. Improper installation may result in damage to the product and/or instrument.