Panasonic Polymer Capacitors are capacitors that use conductive polymers as electrolytes. They offer high conductivity, small size, and a long lifespan. Compared to traditional liquid-electrolyte capacitors, polymer capacitors exhibit more stable performance, especially in high-frequency and high-temperature environments. Below is a detailed introduction to their definition, classification, features, functions, and applications.

Panasonic Polymer Capacitors

Definition of Panasonic Polymer Capacitors

Panasonic Polymer Capacitors are capacitors that use conductive polymers as the electrolyte. Unlike traditional aluminum electrolytic capacitors, polymer capacitors replace the liquid electrolyte with solid conductive polymers, enhancing the capacitor's performance, particularly in terms of heat resistance and high-frequency response.

Types of Panasonic Polymer Capacitors

Panasonic Polymer Capacitors can be classified in the following ways:

Types by Electrolyte Type:

• Conductive Polymer Aluminum Electrolytic Capacitors: These capacitors have a conductive polymer layer coated on aluminum electrodes, offering lower Equivalent Series Resistance (ESR) and higher stability.
• Solid Electrolytic Capacitors: These use solid polymer electrolytes, further improving reliability and temperature stability.

Types by Application:

• High-frequency Polymer Capacitors: Primarily used in high-frequency circuits, offering excellent electrical performance.
• High-temperature Polymer Capacitors: Designed for high-temperature environments, capable of operating stably at temperatures up to 125°C or higher.

Product Types:

• SP-CAP™ Polymer Aluminum
• POSCAP™ Tantalum Polymer
• OS-CON™ Aluminum Polymer
• Polymer Hybrid Aluminum Electrolytic Capacitors

Features of Panasonic Polymer Capacitors

Panasonic Polymer Capacitors have the following outstanding features:

• Low ESR (Equivalent Series Resistance): These capacitors have lower ESR, which means better filtering capability and higher efficiency, especially in power circuits.
• High Stability and Reliability: Solid-state polymer electrolytes eliminate issues related to liquid electrolyte leakage, making them more stable and reliable, especially for long-term use.
• Wide Operating Temperature Range: Many Panasonic polymer capacitors can operate stably at temperatures up to 125°C or higher, suitable for harsher environments.
• Long Lifespan: With stable electrolytes and no leakage, polymer capacitors typically have a much longer lifespan than traditional electrolytic capacitors.
• Excellent High-frequency Response: They provide superior performance under high-frequency conditions, making them ideal for high-frequency signal transmission.
• Small Size, Large Capacity: Compared to traditional electrolytic capacitors, polymer capacitors are smaller but offer higher capacitance, making them suitable for limited space applications.

Functions of Panasonic Polymer Capacitors

The primary functions of Panasonic Polymer Capacitors include:

• Filtering: With their low ESR, they are widely used in power circuits for filtering, providing stable DC output.
• Decoupling: In high-speed digital circuits, polymer capacitors serve as decoupling capacitors to reduce power supply noise and maintain signal stability.
• Energy Storage: Suitable for circuits that require fast charge/discharge, such as in flashlights and battery protection boards for power tools.
• Smoothing Voltage: In power modules, they help smooth and stabilize voltage, reducing fluctuations and noise.

Applications of Panasonic Polymer Capacitors

Due to their superior performance, Panasonic Polymer Capacitors are widely used in the following areas:

• Consumer Electronics: In devices like televisions, sound systems, mobile phones, and laptops, they are used for power filtering in battery management systems.
• Automotive Electronics: In automotive power modules, LED lighting, and battery management systems.
• Computing and Communication Devices: Used for power supply, decoupling, filtering, and signal stabilization.
• Industrial Equipment: Such as motor drives, power modules, and control systems.
• Power Tools: Especially in applications requiring high-frequency and fast response, like power tools and wireless electric devices.
• High-frequency Devices: Such as capacitors in RF (radio frequency) and microwave systems.

Conclusion

Panasonic Polymer Capacitors, with their low ESR, high stability, high-temperature resistance, and long lifespan, have been widely used in many electronic devices. They are particularly suitable for circuit designs requiring high frequency, high performance, and long-term stability, making them an indispensable component in modern electronics.

Each application has its suitable Panasonic capacitor solution. Capacitor options include long life, AEC-Q200 standard compliance, high moisture resistance, vibration resistance, and ultra-small package sizes to save PCB space.

Panasonic capacitors redefine quality and performance, from industry-leading polymer capacitors to thin-film capacitors with fail-safe metallized technology.

Panasonic is a leading supplier of capacitor technology, offering an extremely wide range of MLCC replacement solutions, including SP-Cap™, POSCAP™, OS-CON™, Polymer Hybrid Capacitors, and Thin Film Capacitors, all of which can now be considered for replacing hard-to-get MLCCs.

If you're looking to purchase Panasonic Polymer Capacitors, visit JMChip. We offer competitive prices, strong after-sales support, fast delivery, and assistance in choosing the most suitable products to meet various application needs.

Frequently Ask Questions

How long do polymer capacitors last?

Now, Alu-polymer caps rated for 12k hours at 105°C are very good quality components, some of the best available.

What are polymer capacitors used for?

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.

Can I replace electrolytic capacitor with polymer?

polymer capacitors can be used as direct replacements for electrolytic capacitors, as long as the maximum rated voltage is not exceeded.

What is the value of polymer capacitor?

Polymer capacitors are made with capacitances between 10µF and 1mF. The typical maximum voltage rating is up to 35 V, but there are polymer capacitors with maximum operating voltages reaching 100 V. Just like ordinary electrolytic capacitors, these polymer capacitors are usually polarized.

Which is better polyester or polypropylene capacitors?

The polyester capacitor is used for general applications, while the polypropylene capacitor is used for high-frequency applications. There is no comparison between the two capacitors in terms of their performance.

What are the disadvantages of polymer capacitors?

Higher cost – Polymers can cost over twice the amount for the same capacitance and voltage value. Higher leakage currents – Polymers can have up to 3 mes higher leakage current · Lower surge voltages ‐ Polymers surge voltage is typically only 15% above their rated voltage compared to electroly cs at 25%.

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