29140B103JO0

Series:	291
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	10000pF
Tolerance:	±5%
Voltage - Rated:	4kV
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Requires Holder
Package / Case:	Axial, Can
Lead Spacing:	--
Features:	General Purpose
Size / Dimension:	--
Height - Seated (Max):	--

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Mica and PTFE Capacitors

Mica and PTFE capacitors are widely used in electronics applications due to their excellent dielectric performance and heat endurance. The 29140B103JO0 mica and PTFE capacitor is a popular choice for a wide range of applications where cost and reliability are of utmost importance. The capacitor utilizes a combination of mica and polytetrafluoroethylene (PTFE) to create an effective dielectric medium which provides both high capacitance and high frequency performance.

Application Field

The 29140B103JO0 mica and PTFE capacitor is suitable for applications in industries such as telecommunications, aeronautics, and military. It is also used for high-frequency amplification, medical equipment, and instrumentation. Due to its high capacitance, the 29140B103JO0 capacitor offers superior stability in the face of temperature variation. It also provides a high-reliability capacitor option for applications in hostile environments, ensuring that the capacitor retains its electrical characteristics over time.

Working Principle

At the most basic level, the 29140B103JO0 mica and PTFE capacitor works on the same principle as other types of capacitors: it stores electrical charge by utilizing an electrical field between two conductive surfaces. In the case of the 29140B103JO0, the two conductive surfaces are formed by a combination of mica and PTFE, with the mica acting as the dielectric medium and the PTFE functioning as the electrodes. The mica provides a greater capacitance and therefore a higher breakdown voltage than other types of capacitors, while the PTFE ensures consistent performance and reliable operation over a wide temperature range.The 29140B103JO0 capacitor is of a “stacked’ design, meaning that two sets of mica and PTFE plates are directly stacked one on top of the other, providing a greater surface area for increased capacitance and stability. This improved design provides increased stability over traditional capacitors and higher efficiency due to the increased surface area offering a higher breakdown voltage.The combination of mica and PTFE materials also provides superior long-term stability, with little variation in performance over a wide temperature range. This is due to the increased dielectric constant of mica (20) compared to other materials such as polyesters (2-5) or polystyrene (2-4). This increase in dielectric constant helps to reduce losses across the capacitor due to the increased electrical field.

Conclusion

The 29140B103JO0 mica and PTFE capacitor is a reliable and cost-effective choice for a wide range of high frequency and critical applications. Utilizing a combination of mica and PTFE, the capacitor offers superior capacitance, high-frequency performance, stability, and reliability in hostile or extreme environments. It also provides excellent long-term performance over a wide temperature range, making it an ideal choice for a wide variety of applications where reliability and cost are of utmost importance.

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