Power Supply Pulse Current
Tape Wrap and Fill Polypropylene
Polypropylene Film Foil and Metallized Polypropylene offers the most stable electrical characteristics over temperature and frequency. While polypropylene has not caught up to polyester with respect to dielectric constant, it has surpassed polyester in dielectric strength making it very compatible at voltages of 600V and above. Polypropylene is the most widely used dielectric in the industry. Depending on the application, ASC offers products ranging from lower voltages to higher voltages, low current to high current and a multitude of termination styles.
Tape Wrap and Fill Polyester
Polyester Film Foil and Metallized Polyester was the first film capacitor product lines. With a dielectric constant of over 3, it has volume efficiency superior to polypropylene. With film thicknesses down to 0.9 micron, small package sizes are achieved. Depending on the end applications ASC offers a variety of polyester products ranging from foil to metallized, low voltage to high voltage and low current to higher currents.