Film capacitors come in a variety of forms, each with its own specific use. Polyester, metallized polyester, polycarbonate, polypropylene or polystyrene line a film capacitor. The lining affects the purpose of the film capacitor.

Business owners looking to buy film capacitor components should consider the benefits of the different types before they buy.

1. Polyester film capacitors have a high dielectric constant as well as a high dielectric strength with volumetric.

2. Metallized polyester film lets capacitors hold up under high-pulsed voltages without breaking the dielectric.

3. Polycarbonate film capacitors offer a wide temperature range while operating and stability even long-term.

4. Polypropylene film capacitors provide low losses and dielectric absorption while also offering high dielectric strength

5. Polystyrene film capacitors offer very high insulation resistance along with a small negative temperature coefficient.

Action Steps
The best contacts and resources to help you get it done

Purchase dependable film capacitors from certified manufacturers

When purchasing film capacitors including a polypropylene film capacitor, plastic film capacitors or metallized film capacitors, consider manufacturers with stable backgrounds and a history of innovation and dependability.

I recommend: General Atomics Electronic Systems offers a wide variety of capacitors, such as film capacitors. It maintains an ISO 9001:2000 certification, and it came into existence over 40 years ago, maintaining a reputation for quality over the years. Digi-Key, a world-wide supplier of film capacitors and other electronic components, offers clients easy online shopping and a large selection of product.

Look for optimal prices on compact film capacitors and others by purchasing used components

When you buy used or refurbished film foil capacitors, compact film capacitors or other capacitors, you save money and often get a chance to exchange the equipment, if it is not completely satisfactory in performance.

I recommend: Tempest offers refurbished equipment from a variety of large manufacturing companies. The Tempest team consults with business owners to find the perfect equipment for the job. Lucas Seven enjoys providing customers with low-cost, high-quality used products for computers. The film capacitors it offers come in a variety of styles from numerous, major manufacturers.

Order custom film capacitors to fulfill your product needs

While most manufacturers carry a product in stock that you can use, you may find that custom plastic film capacitors fit your needs better. Manufacturers work with businesses that have unique film capacitor criteria, and many consult with customers to meet unique criteria.

I recommend: Inter-Technical Group helps customers who can't find standard products to fit their needs and designs and manufactures products to fill this void. Another company offering custom solutions for film capacitors is Aerovox. Its experienced engineers work with you to develop products according to your specifications with DC voltages up to 60,000 volts of direct current.

Tips & Tactics

Helpful advice for making the most of this Guide

• •  Look for a metal film capacitor or other capacitor that stands out because of its durability. Make sure the capacitor comes from certified manufacturers who put it through rigorous testing before selling.