Dearborn Electronics, an Exxelia company, offers a wide variety of filter capacitors. Aluminum electrolytic capacitors are widely used due to their high capacity in a small volume for power rail filtering and are used in parallel to compensate for poor performance at high frequencies in speaker crossover networks. Tantalum capacitors with their small size and low ESR have the ability to handle high currents in low voltage applications, providing the ideal source of filtering in computers. For radio frequency, Ultra High Frequency (UHF) and DC motor noise suppression filtering choose from the wide array of Dearborn’s ceramic capacitors. In critical filtering requiring high stability and precision choose Dearborn’s mica capacitors. Plastic film capacitors, available in several types of dielectrics from Dearborn, are the component of choice for swtiched mode power supply filtering.