CD19FD681JO3F is a standard dipped silvered mica capacitor from Cornell Dubilier's CD19 series, designed for applications requiring stable capacitance over a wide temperature range. This capacitor features a capacitance of 680 pF with ±5% tolerance (J) and operates within a temperature range of -55°C to +125°C. The CD19 series offers high temperature capability up to +150°C, dimensions meeting EIA RS153B specification, and a minimum dV/dt pulse capability of 100,000 V/µs. These mica capacitors are ideal for timing circuits, close tolerance applications, and other precision electronic designs where stability and reliability are essential.