The CAP CER 1000PF 250V X7R 1210 is a specific type of ceramic capacitor. It has a capacitance value of 1000 picofarads with a tolerance of ±10% and can withstand voltages up to 250 volts. The designation "X7R" indicates its temperature coefficient characteristics, and the size code "1210" refers to its metric dimensions, equivalent to 3225 in imperial units.