MC12FD620J-F

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Mica and PTFE capacitors are widely used both in discrete electronic circuits and in mass produced integrated circuits, because of their proven reliability and performance in a wide range of applications, from audio to automotive. By combining mica or PTFE with another dielectric material, a capacitor can be created that has a higher capacitance and dielectric strength than what could be achieved by a single dielectric material, resulting in a much higher level of performance. The MC12FD620J-F is a high-performance mica and PTFE surface mount capacitor that offers an impressive combination of capacitance and endurance.

The MC12FD620J-F is a class-2 surface-mount electrochemical capacitor, made of mica and PTFE, that is widely used in embedded systems, telecommunication systems, and other electronic equipment where voltage and temperature play a critical role. It is rated at 10V to 125V, 0.22uF to 4.7uF, 20% to 80% nominal rated ripple voltage over a temperature range of -40°C to +105°C. The MC12FD620J-F is an especially well-suited capacitor for use in high-temperature environments and high-frequency applications, such as switched-mode power supplies and dc-to-dc converters, as it offers excellent electrical and thermal stability.

The MC12FD620J-F utilizes a mica-etched dielectric shell to achieve a very high dielectric strength and capacitance while maintaining its superior temperature and voltage performance. The mica shell is made up of two layers of ceramic powder and carbon, which act as the dielectric material and a conductive plate respectively. The two dielectric layers act in a capacitance-boosting manner, creating a larger net capacitance in the capacitor than what would be achievable with just one dielectric material. This mica-PTFE combination also provides exceptional thermal and voltage stability, which makes the MC12FD620J-F an ideal choice for long-term reliability and performance.

The actual working principle of the MC12FD620J-F is based on the traditional electrochemical capacitor design. When the two terminals of the capacitor are subjected to an external electric field, the negative and positive terminals exchange electrons, stored in the mica-etch formed dielectric material, resulting in a net positive charge around the negative terminal and a net negative charge around the positive terminal. This creates a separator, providing a high capacitance over a wide range of voltage and temperature.

One of the most important features that the MC12FD620J-F offers is its excellent endurance and reliability. This is due to the fact that the capacitor is designed to withstand a maximum temperature range of 105°C for 1000+ operational hours. Additionally, the capacitor is highly resistant to stressing due to its overvoltage and overcurrent protection capabilities. The capacitors also possess low ESR (Equivalent Series Resistance) values, which help to reduce the total power losses in the system.

The MC12FD620J-F surface mount capacitor is a high-performance mica and PTFE capacitor that combines excellent temperature and voltage ratings with a high capacitance and endurance rating for use in a variety of applications. The capacitor utilizes a mica-etched dielectric composition to achieve a high dielectric strength and capacitance, providing superior performance. Furthermore, the platform boasts excellent endurance and reliability, with a maximum temperature range of 105°C for 1000+ operational hours, and low ESR values for reduced losses in the system.

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