The CT81-250VAC-08d-2E4-102M-YA 10d L=3.0±0.5mm with Ceramic Disc Capacitors 1nF ±20% 250VAC Through Hole RoHS is a type of ceramic disc capacitor, manufactured by the company LY, with a nominal capacitance of 1nF (nano Farad) and a tolerance of +/-20%. The capacitor is designed with two ceramic discs which are separated by a dielectric of thin, insulating material. The capacitor is rated for operation at a voltage of 250VAC with a rated temperature of +105C, and is compliant with the RoHS directive. The capacitor has an 8mm diameter, with a 3.0mm lead length and lead pitch of 2.54mm, and runs with a resonant frequency of 102M Hz.