The CAP CER 100PF 250V X7R 1808 is a 100 pF ceramic capacitor with a tolerance of ±5 and a voltage rating of 250 volts. It has the metric designation 4520. This component belongs to the X7R dielectric category, which offers stable capacitance over a wide temperature range. The 1808 code indicates its compact size in a surface-mount package suitable for various electronic applications requiring low capacitance values.