This is a 1812 size capacitor with the designation of CAP CER 56PF 1KV C0G/NP0. It has a capacitance value of 56 pF and is rated for ±5% tolerance. The capacitor also boasts an impressive voltage rating of 1000V or 1kV. This ceramic capacitor features the C0G/NP0 temperature coefficient, often referred to as Class I materials.