film capacitor การใช้

• Film capacitors have become much smaller since the beginning of the technology.
• Most EMI / RFI suppression film capacitors are metallized polypropylene film capacitors.
• R leak is lower for electrolytics than for ceramic or film capacitors.
• Most EMI / RFI suppression film capacitors are metallized polypropylene film capacitors.
• Class 1 ceramic capacitors and film capacitors do not have ferroelectric-related aging.
• Polypropylene film capacitors have the lowest voltage values generated by dielectric absorption.
• The design also specifies high quality screened air-gap inductors and film capacitors.
• Film capacitors are not polarized and are suitable for handling an alternating voltage.
• Main producers of PTFE film capacitors are located in the USA.
• Two main advantages of film capacitors are very low ESR and ESL values.
• Plastic film capacitors typically have an insulation resistance of 6 to 12 G?.
• However, paper absorbs moisture, and has been largely replaced by plastic film capacitors.
• The standardization of ordinary film capacitors is oriented on electrical and mechanical parameters.
• In general, film capacitors are not polarized, so the two terminals are interchangeable.
• The breakdown voltage of film capacitors decreases with increasing temperature.
• Film capacitors with PVDF are described for one very special application, in portable defibrillators.
• Low-cost metallized plastic film capacitors for general purpose applications are produced in this manner.
• In film capacitors higher temperatures may shrink the plastic film changing the capacitor's properties.
• Snubber circuits usually incorporate film capacitors, mostly polypropylene film caps.
• The dissipation factor of film capacitors is frequency-, temperature-and time-dependent.