Polymer Capacitors

Polymer Capacitors are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many polymer capacitor manufacturers including KEMET, KYOCERA AVX, Nichicon, Panasonic, Vishay and more.

Polymer capacitors are advanced capacitive components that utilize conductive polymer materials as part of their internal construction to deliver low equivalent series resistance (ESR), excellent electrical performance, and long-term reliability. They provide stable capacitance characteristics, efficient power handling, and improved ripple current performance compared to many conventional capacitor technologies. These capacitors are widely used in modern electronic designs where power efficiency, reliability, and compact size are critical design considerations.

Types: The most common polymer capacitor types include conductive polymer aluminum capacitors, polymer tantalum capacitors, hybrid polymer capacitors, surface-mount polymer capacitors, low-ESR polymer capacitors, and high-ripple-current polymer capacitors, each optimized for specific capacitance, voltage, and performance requirements.

Applications: Polymer capacitors are widely used in power supplies, DC/DC converters, industrial automation equipment, telecommunications infrastructure, computing systems, automotive electronics, networking equipment, and embedded electronics to improve power stability, filtering performance, and energy efficiency.

Selection requirements: To choose polymer capacitors, evaluate capacitance value, voltage rating, equivalent series resistance (ESR), ripple current capability, operating temperature range, lifecycle expectations, package type, reliability requirements, and suitability for the intended electrical and environmental conditions.

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Please view our large selection of polymer capacitors below.