CMR04F121GODM

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Mica and PTFE Capacitors

Capacitors are electronic components for storing electrical energy and maintaining electrical circuits. Among the large variety of capacitors available, one of the most common for applications such as power supplies and complementary filters is the Mica and PTFE capacitor, specifically CMR04F121GODM. This packaging type is one of the most reliable, cost effective solutions for several applications.

Application Field

Mica and PTFE capacitors are used in a vast range of applications, especially the CMR04F121GODM variety, due to its low ESR performance. It is used in applications such as:

• Power Supplies and Rectification
• SMPS, Switch Mode Power Supplies
• Inverters and DC to DC Converters
• High-speed, high-frequency circuits
• Telecommunications
• Lighting
• Data Transfer
• Profusion Circuits
• Medical Applications
• Electric Vehicles

Its Mica and PTFE construction gives Mica and PTFE capacitors high capacitance values and low equivalent series resistance, allowing for high-speed, power-efficient applications.

Working Principle

A Mica and PTFE capacitor, specifically the CMR04F121GODM, consists of a pair of electrodes made of a metal alloy, separated from each other by a layer of mica and polytetrafluorethylene (PTFE), which is a high-dielectric-constant material. The result of this construction allows for an extremely low ESR due to mica’s insulation properties and PTFE’s high temperature stability and thermal dissipation.

The capacitance of Mica and PTFE capacitors is durable and highly stable, and it increases as the temperature rises. This makes them a great choice for applications that require a reliable and long-term performance, since mica and PTFE construction provides a wide operating temperature range.

Mica and PTFE capacitors have low inductance, which ensures that they exhibit low levels of self-inductance and leakage current even at high operating frequencies. This makes them an ideal choice for applications such as power supplies and frequency filters, as the low inductance will reduce the possibility of frequencies interfering with each other.

Due to their construction, Mica and PTFE capacitors have a wide variety of uses in circuits. They can be used for energy storage, power factor correction, filtering, power supplies, and even audio-frequency applications. They are known for their low ESR performance, which makes them suitable for fast transient response circuits, such as those found in modern digital equipment.

Conclusion

The CMR04F121GODM is a Mica and PTFE capacitor known for its low ESR performance, making it the ideal choice for many applications. Its construction gives it a wide operating temperature range, excellent capacitance stability, high-frequency response, low inductance, and plenty of other features suitable for many applications, from power supplies and rectification to surge suppressors and data transfer.

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