Chip Capacitors

Chip capacitors or surface mount capacitors do not have leads. They are used in aerospace, automotive, general-purpose, high voltage, high frequency, microwave, and telecommunication applications. Most chip capacitors are packed in tape reel assemblies, carbon-powder trays or rails, and shipping tubes or stick magazines. Bulk pack parts are distributed as individual products. Some chip capacitors or surface mount capacitors are polarized or self-healing. Others meet military standards or do not exhibit capacitance variation with voltage or pressure. Capacitance measures the ability to store energy, given as C = K A/D, where A is the area of the electrodes, D is their separation, and K is a function of the dielectric between the electrodes. Chip capacitors that comply with Restriction of Hazardous Substances (RoHS) are also available.

Electrostatic chip capacitors or electrolytic surface mount capacitors and electrolytic chip capacitors or electrolytic surface mount capacitors use different types of materials between the capacitor plates. Insulating materials for electrostatic chip capacitors include air, ceramic COG (NPO), ceramic X7R, ceramic Z5U, glass, mica, oil, paraffin paper, polyester, polycarbonate, polypropylene, polystyrene, and proprietary materials such as Teflon (DuPont). Electrolytic chip capacitors can be either wet or dry. Wet electrolytic capacitors have a moist electrolyte. Dry or solid electrolytic capacitors do not. Material choices include aluminum oxide, tantalum oxide, and niobium or niobium oxide. Other, unlisted electrolytic chip capacitors and electrolytic surface mount capacitors are also available.

Any questions please call us (949) 276-5225 or email us rfq@4starelectronics.com