Mica and PTFE Capacitors

MC08CA020D-F Application Field and Working Principle

Mica and PTFE capacitors are widely used in many applications and today, they are available in a variety of sizes and combinations. As technology continues to improve, the electrolytic capacitors are increasingly being replaced by mica and PTFE capacitors. This article explains the various applicability and working principle of the MC08CA020D-F capacitor.

The MC08CA020D-F capacitor is a surface mountable, axial leaded mica and PTFE capacitor with a lead-free finish of 100% SnO2. It is offered in package sizes from 0805 to 2520, making it ideal for a wide range of applications including power supplies, portable and hand-held device applications. It provides low ESR, high capacitance and enhanced temperature stability. Furthermore, its metalized electrodes provide superior heat dissipation for high power applications. It is capable of withstanding operating temperatures of -55°C to +125°C and is resistant to shock, vibration and humidity.

The MC08CA020D-F capacitor is particularly well-suited for automotive, consumer electronics and industrial electronic applications, due to its high performance and long-term reliability. It is often used to filter power systems, smooth out transient signals, and act as a timing capacitor in oscillating circuits. Its unique combination of attributes makes it an ideal choice for data acquisition systems, aerospace applications, communications and instrumentation.

The working principle of the MC08CA020D-F capacitor is based on a combination of mica and PTFE dielectrics, which allows for both superior capacitance and low ESR ratings. The first layer of dielectric is Mica, which provides a low-loss, non-polar material. The second layer of dielectric is PTFE, which provides a high-capacitance per unit area and is also non-polar. These two dielectrics create a strong electromagnetic field within the capacitor and create high capacitance levels with low ESR.

The MC08CA020D-F also features large contacts, which allow for increased current flow. Furthermore, the leads on the device are plated with a lead-free finish of 100% SnO2, making it highly resistant to corrosion. The combination of these features makes the MC08CA020D-F an excellent choice for high power applications.

In conclusion, the MC08CA020D-F is a strong choice for applications requiring a combination of performance, reliability, and versatility. Its unique mica and PTFE design provides superior capacitance and ESR ratings, while its large contacts and lead-free finish make it resistant to corrosion and shock. This makes it applicable for a wide range of applications including power supplies, portable and hand-held device applications, automotive applications, and consumer electronics and industrial applications.