Introduction of Polymer Electrolytic Capacitors
A polymer capacitor, or more accurately a polymer electrolytic capacitor, is an electrolytic capacitor (e-cap) with a solid conductive polymer electrolyte.
Polymer electrolytic capacitors are a type of electronic component that play a crucial role in various electrical devices and systems.
These capacitors are designed to store and release electrical energy efficiently, making them essential for applications such as power supplies, audio equipment, telecommunications devices, and automotive electronics.
In recent years, there has been continuous research and development efforts aimed at enhancing the performance characteristics of polymer electrolytic capacitors further. Innovations include advancements in materials technology to improve energy storage capabilities while maintaining compact sizes and reducing costs.
Overall, polymer electrolytic capacitors have become indispensable components within the field of electronics due to their high capacitance density, long lifespan, temperature stability, and ongoing technological advancements. Their reliable performance ensures smooth operation across various industries where efficient energy storage is required for optimal functionality.
A basic polymer electrolytic capacitor is shown in the photo below which is from UF Capacitors.

Features of Polymer electrolytic capacitors
One notable advantage of polymer electrolytic capacitors is their high capacitance density. This means that they can store a large amount of charge within a relatively small physical size, allowing for compact designs in modern electronic devices.
Additionally, these capacitors offer low equivalent series resistance (ESR) and excellent frequency response characteristics, ensuring stable performance even under demanding conditions.
Another key feature of polymer electrolytic capacitors is their long operational lifespan. Compared to traditional aluminum electrolytic capacitors, which may suffer from degradation over time due to the formation of an oxide layer on the electrode surface, polymer electrolytics exhibit superior stability and reliability. This makes them suitable for use in critical applications where durability is paramount.
Furthermore, polymer electrolytic capacitors have improved temperature stability compared to other types of capacitors. They can operate reliably across a wide range of temperatures without significant loss in performance or efficiency. This attribute makes them ideal for use in environments with extreme temperature variations or high thermal stress.
Application of Polymer electrolytic capacitors
Polymer electrolytic capacitors are mainly used in power supplies of integrated electronic circuits as buffer, bypass and decoupling capacitors, especially in devices with flat or compact design.
Introduction of Polymer Electrolytic Capacitor from UF Capacitors

UF Capacitorsis a professional Polymer Electrolytic Capacitor manufacturers and suppliers in China. High quality Polymer Electrolytic Capacitor are very popular in all countries.
We not only offer free samples, but also provide price lists and quotations.
Our durable products support bulk, you can buy in stock and get low price.
Welcome to buy made in China and advanced products from our factory.
Features:
Very low ESR and high frequency characteristics.
Stable characteristic not dependent on temperature and voltage.
Higher safety than general tantalum electrolytic capacitors.
REACH and RoHS certificated.
Reference list for various series:
Simply send RFQ to inquiry@ufcapacitors.com for quote of Polymer Aluminum Electrolytic Capacitor. There will be experienced engineers do cross reference and choose the match series upon your request.