What is the Price of Popular Metallized Film Capacitor Models in Stock?

I. Introduction

Metallized film capacitors are essential components in the world of electronics, known for their reliability and performance. These capacitors are constructed using a thin film of metal, which serves as the electrode, and a dielectric material, typically made from polyester, polypropylene, or other polymer films. Their unique construction allows them to offer high stability and low self-inductance, making them ideal for various applications in power electronics, audio equipment, and industrial machinery.

In this article, we will explore the price range of popular metallized film capacitor models currently in stock. By providing an overview of leading manufacturers, popular models, and factors influencing pricing, we aim to equip readers with the knowledge needed to make informed purchasing decisions.

II. Overview of Metallized Film Capacitors

A. Construction and Working Principle

Metallized film capacitors consist of a dielectric film coated with a thin layer of metal, which acts as the capacitor's electrodes. The dielectric material is rolled or stacked to form a compact unit, allowing for efficient use of space. When a voltage is applied across the electrodes, an electric field is created, storing energy in the capacitor. The design of metallized film capacitors minimizes self-inductance, which enhances their performance at high frequencies.

B. Advantages of Metallized Film Capacitors

1. **High Stability and Reliability**: Metallized film capacitors are known for their excellent temperature stability and long lifespan, making them suitable for demanding applications.

2. **Low Self-Inductance**: Their construction allows for low self-inductance, which is crucial for high-frequency applications, reducing the risk of signal distortion.

3. **Excellent Frequency Response**: These capacitors maintain their performance across a wide frequency range, making them ideal for audio and RF applications.

C. Common Applications

Metallized film capacitors are widely used in various electronic applications, including:

1. **Power Electronics**: They are used in power supplies, inverters, and converters due to their ability to handle high voltages and currents.

2. **Audio Equipment**: Their low distortion and high-frequency response make them popular in audio circuits, including amplifiers and filters.

3. **Industrial Machinery**: These capacitors are employed in motor drives, control systems, and other industrial applications where reliability is critical.

III. Popular Models of Metallized Film Capacitors

A. Overview of Leading Manufacturers

Several manufacturers dominate the market for metallized film capacitors, each offering a range of models tailored to different applications:

1. **Vishay**: Known for its extensive portfolio of electronic components, Vishay offers high-quality metallized film capacitors suitable for various applications.

2. **KEMET**: KEMET is recognized for its innovative capacitor technologies, including a wide range of metallized film capacitors.

3. **EPCOS (TDK)**: EPCOS, a subsidiary of TDK, provides reliable capacitors with a focus on performance and quality.

4. **Nichicon**: Nichicon is known for its high-performance capacitors, including metallized film options for audio and power applications.

B. Description of Popular Models

1. **Vishay MKT Series**: This series is designed for general-purpose applications, offering a wide capacitance range and voltage ratings. They are known for their reliability and stability.

2. **KEMET C4AE Series**: The C4AE series features low ESR and ESL, making them suitable for high-frequency applications. They are often used in power electronics and audio circuits.

3. **EPCOS B3292 Series**: This series is designed for AC applications, providing excellent performance in motor drives and power supplies.

4. **Nichicon UHE Series**: The UHE series is known for its high ripple current capability, making it ideal for audio and power supply applications.

IV. Price Range of Popular Models

A. Factors Influencing the Price of Metallized Film Capacitors

Several factors can influence the price of metallized film capacitors, including:

1. **Capacitance Value**: Higher capacitance values typically result in higher prices due to the increased material costs and manufacturing complexity.

2. **Voltage Rating**: Capacitors with higher voltage ratings are generally more expensive, as they require more robust materials and construction techniques.

3. **Tolerance and Temperature Coefficient**: Capacitors with tighter tolerances and better temperature coefficients often come at a premium.

4. **Packaging and Quantity**: Prices can vary based on packaging options (bulk vs. tape and reel) and the quantity purchased, with bulk purchases often offering cost savings.

B. Price Comparison of Popular Models

1. **Vishay MKT Series**: Prices for Vishay MKT capacitors typically range from $0.10 to $2.00 per unit, depending on capacitance and voltage ratings.

2. **KEMET C4AE Series**: The C4AE series is priced between $0.50 and $3.00 per unit, with variations based on specifications.

3. **EPCOS B3292 Series**: Prices for the B3292 series range from $0.20 to $2.50 per unit, depending on the specific model and ratings.

4. **Nichicon UHE Series**: The UHE series generally falls within the $0.30 to $2.00 range per unit, influenced by capacitance and voltage specifications.

V. Where to Buy Metallized Film Capacitors

A. Online Retailers

1. **Digi-Key**: A leading distributor of electronic components, Digi-Key offers a vast selection of metallized film capacitors from various manufacturers, along with detailed specifications and pricing.

2. **Mouser Electronics**: Mouser provides a comprehensive inventory of capacitors, including metallized film options, with competitive pricing and fast shipping.

3. **Newark**: Newark is another reputable distributor that offers a wide range of electronic components, including metallized film capacitors, with a focus on customer service.

B. Local Electronic Component Distributors

In addition to online retailers, local electronic component distributors can be a valuable resource for purchasing metallized film capacitors. These distributors often have knowledgeable staff who can assist with selecting the right components for specific applications.

C. Considerations for Purchasing

When purchasing metallized film capacitors, consider the following:

1. **Stock Availability**: Ensure that the desired models are in stock to avoid delays in your project.

2. **Shipping Costs**: Compare shipping options and costs, especially for bulk orders, to find the most economical solution.

3. **Return Policies**: Review the return policies of the retailer to ensure you can return or exchange components if necessary.

VI. Conclusion

In summary, metallized film capacitors are vital components in various electronic applications, offering high stability, low self-inductance, and excellent frequency response. Understanding the price range of popular models, such as those from Vishay, KEMET, EPCOS, and Nichicon, is essential for making informed purchasing decisions.

When selecting a capacitor, consider factors such as capacitance value, voltage rating, and application requirements. By researching and comparing prices from reputable retailers, you can ensure that you choose the right metallized film capacitor for your specific needs.

VII. References

1. Vishay Intertechnology, Inc. - [Vishay Capacitors](https://www.vishay.com)

2. KEMET Corporation - [KEMET Capacitors](https://www.kemet.com)

3. EPCOS (TDK) - [EPCOS Capacitors](https://www.tdk.com)

4. Nichicon Corporation - [Nichicon Capacitors](https://www.nichicon.co.jp)

5. Digi-Key Electronics - [Digi-Key](https://www.digikey.com)

6. Mouser Electronics - [Mouser](https://www.mouser.com)

7. Newark - [Newark](https://www.newark.com)

This blog post serves as a comprehensive guide to understanding the price and selection of metallized film capacitors, helping both hobbyists and professionals navigate the market effectively.