MIN02-003DC390J-F

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Mica and PTFE capacitors refer to a class of electrostatic capacitors that utilize two non-conductive materials made from mica and PTFE (PolyTetraFluoroEthylene). In contrast to standard ceramic capacitors, mica and PTFE capacitors offer several advantages, such as a wide temperature range and reliable dielectric strength. The MIN02-003DC390J-F is a mica and PTFE capacitor specifically designed for pulse-type circuit applications. In this article, we discuss the properties of this type of capacitor and its various applications.

Shell and Dielectric Structure

The MIN02-003DC390J-F is made up of a hermetically sealed aluminum shell that houses the mica and PTFE dielectric material. Conductive silver electrodes are deposited directly onto the mica and PTFE dielectric to form a distributed-electronic capacitor. A thermoplastic CPA mold is then used to fill the entire space inside the shell and complete the capacitor assembly. The lead wires are then connected to the shell’s electrodes and the entire unit can then be soldered onto a PCB plate.

Characteristics and Performance

The MIN02-003DC390J-F mica and PTFE capacitor provides superior performance in the areas of temperature stability, power dissipation, and frequency response. It displays a wide temperature range between -60 and +120C and has an operating life of up to 100,000 hours between -55 and +85C. The device can handle a maximum voltage of 250V and a maximum current of 17mA. Its frequency response technically goes up to 2GHz, with a rising edge up to 1GHz and a falling edge up to 500MHz.

The MIN02-003DC390J-F also exhibits exceptional electrical characteristics at a wide range of frequencies. Its capacitance drops by just 6% at a signal frequency of up to 100kHz, and the device can maintain a capacitance of above 80% at frequencies up to 400kHz. The reverse leakage current of the MIN02-003DC390J-F is relatively low compared to other capacitors, making it a great choice for high-current applications.

Applications

Mica and PTFE capacitors are most common in pulse-type circuit applications, such as oscillators and signal processors. They can also be found in voltage regulators, energy-storage devices, and power supplies. The MIN02-003DC390J-F in particular is often used in very specific applications, such as high-frequency radio transmitters, broadband commutation amplifiers, signal discriminators, and interference analysis systems.

In general, mica and PTFE capacitors have excellent reliability and durability, making them ideal for a variety of applications. They provide superior quality for high signal-frequency operations and can handle large currents with minimal impedance. They are also capable of surviving extreme temperature ranges and have a long lifespan. For these reasons, mica and PTFE capacitors are often used in commercial, industrial, military, and aerospace electronics.

Conclusion

The MIN02-003DC390J-F mica and PTFE capacitor offers exceptional electrical performance and wide temperature range. The device is ideal for pulse-type applications, with an operating life of up to 100,000 hours between -55 and +85C and a capacitance not dropping by more than 6% at signal frequencies up to 100kHz. As a result, it is often used in high-frequency radio transmitters, broadband commutation amplifiers, signal discriminators, and various interference analysis systems. Mica and PTFE capacitors in general offer great reliability and durability, making them suitable for a variety of commercial, industrial, military, and aerospace electronics.

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