DMT1D68K

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Introduction to Film Capacitors

Film capacitors, also called plastic film capacitors, are non-polarized electrical capacitors made of thin plastic films. The films are formed into multiple layers, and each layer is separated by an insulating material. Film capacitors are widely used in electronic circuits, providing the required capacitance and minimal self-inductance. They are used in applications requiring very high capacitance but low profile.

Types of Film Capacitors:

• Polyester Film Capacitors: These capacitors are also known as Mylar capacitors. They have good self-healing properties, meaning they can withstand up to several thousand volts.
• Polypropylene Film Capacitors: These capacitors are very reliable and have very good temperature characteristics. They are used in temperature-sensitive applications and in medical equipment.
• Silver-Palladium Film Capacitors: These capacitors are extremely reliable and use silver-palladium metalizied film. They are mainly used in high-end audio applications.
• Polycarbonate Film Capacitors: These capacitor types provide very low parasitics and are mainly used in RF and microwave applications.

DMT1D68K Application Field and Working Principle

The DMT1D68K Film Capacitor is a non-polarized capacitor module with a high capacitance density. It is made of polyester film with an aluminium coating, which provides excellent performance in a wide range of applications. Additionally, the module comes in a compact form factor, making it suitable for use in space-constrained applications.

The DMT1D68K is designed for use in circuits where a high capacitance density is needed. It is usually used in detector circuits and analog filters. It also finds use in power amplification, signal buffering, and oscillator circuits. Its low ESR and ESL ensure an accurate response without the risk of oscillations. The DMT1D68K also provides a wide capacitance range, making it suitable for use in varying applications.

The DMT1D68K operates by using a dielectric film. The film acts as the medium between the two metallic plates, and it stores electrical charge. When a voltage is applied to the plates, the negative and positive charges are separated, resulting in an increase in the capacitance. When the voltage is removed, the charges recombine and the capacitance returns to normal.

The DMT1D68K has a wide temperature range, making it suitable for use in rugged and harsh environments. It is also compatible with both AC and DC circuits, making it suitable for both high-frequency and low-frequency applications. The DMT1D68K is UL approved and RoHS compliant, ensuring its safety and reliability.

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