DC-Link Box-Type Metallized Film DC Capacitors

The film capacitors we commonly use are generally not very large in size. However, there are exceptions, such as the DC-Link box-type metallized film DC capacitor, which is significantly larger in size and differs greatly in appearance from standard film capacitors.

For example, the image below shows a UF Capacitors DC-Link 60μF 800V capacitor:

Advantages

1. Larger size – Due to the increased material usage, it is naturally more expensive.
2. Four terminals – Standard film capacitors typically have only two terminals.
3. High capacitance range – Usually between 1.0μF ~ 140μF.
4. High rated voltage – Common ratings include 500VDC, 600VDC, 800VDC, 900VDC, 1000VDC, and 1200VDC.
5. Constructed with high-temperature-resistant metallized polypropylene film – Operating temperature range: -40℃ to +105℃.
6. Plastic case encapsulation – Offers superior self-healing properties, high insulation resistance, excellent stability, and long lifespan compared to other film capacitors.

What is the function of DC-Link box-type metallized film DC capacitors?

These specialized DC-Link capacitors are primarily used in high-performance DC filtering applications, such as:

• Frequency inverters
• Industrial & high-end power supplies
• Solar inverters

Due to their specialized applications, large size, and high cost, only a limited number of manufacturers are capable of producing these high-capacity film capacitors.

UF Capacitors produces high-quality DC-Link capacitors and also offers customized sizes to meet specific customer requirements.

More capacitors kindly access our website: www.ufcapacitors

Or send inquiry to our sales: carey@ufcapacitors.com