MC12ED270F-TF

Series:	MC
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	27pF
Tolerance:	±1%
Voltage - Rated:	500V
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	1210 (3225 Metric)
Lead Spacing:	--
Features:	RF, High Q, Low Loss
Size / Dimension:	0.126" L x 0.098" W (3.20mm x 2.50mm)
Height - Seated (Max):	0.079" (2.00mm)

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Mica and PTFE Capacitors

Mica and polytetrafluoroethylene (PTFE) capacitors are electronic components used in a wide variety of applications such as telecommunications, industrial, automotive, and aerospace. Several versions are available, such as those with a single dielectric for increased capacitance, or multiple dielectrics for increased reliability. One of the more popular versions of this type of capacitor is the MC12ED270F-TF.

Application Field & Working Principle

The MC12ED270F-TF mica and PTFE capacitor is suitable for a variety of applications. It has a low equivalent series resistance (ESR), making it suitable for high-frequency outputs. It also has a low distributed capacitance (DCR), which helps provide stability in frequency-dependent circuits. It has a wide frequency range, good thermal and electrical stability, and is suitable for mounting on most printed circuit boards (PCBs).In terms of its working principle, the MC12ED270F-TF mica and PTFE capacitor works by storing electric charge within the dielectric material it is constructed with. The dielectric material is usually a combination of mica and polytetrafluoroethylene (PTFT), providing an increased capacitance and stability. It is often used in applications such as power supplies, analog signal conditioning, and various filters.

Capacitance vs Frequency

The MC12ED270F-TF mica and PTFE capacitor exhibits good static capacitance values over a wide frequency range. The value of the capacitance is a function of the frequency and this can be seen on the capacitor\'s datasheet. For example, with a frequency of 1kHz the capacitance can be up to 40pF. But as the frequency increases, the capacitance decreases. For a frequency of 1MHz, the capacitance could be around 10pF. This indicates that the capacitor has a much greater capacitance at lower frequencies, which makes it well-suited for applications such as power supplies and filters.

ESR & Impedance

The equivalent series resistance (ESR) of the MC12ED270F-TF mica and PTFE capacitor is very low, at only 0.03ohms. This is important for applications that benefit from low ESR, such as high-frequency outputs. It also helps provide stability in frequency-dependent circuits by providing a low impedance.

Thermal & Electrical Performance

The MC12ED270F-TF mica and PTFE capacitor has good electrical and thermal performance characteristics. It has a maximum operating temperature of 85°C, which makes it suitable for a wide range of applications. It also has a low K-factor, which helps to provide a low thermal dissipation coefficient.

Mounting Considerations

The MC12ED270F-TF mica and PTFE capacitor is designed for through-hole mounting on a variety of printed circuit boards (PCBs). The capacitor includes two cylindrical pins which are inserted into the PCB and held in place by soldering. This type of mounting is suitable for high-reliability applications such as automotive or aerospace.

Conclusion

The MC12ED270F-TF mica and PTFE capacitor is an excellent choice for a variety of applications that require high performance and reliability. It has a wide frequency range with good electrical and thermal stability. It also exhibits low equivalent series resistance (ESR), a low distributed capacitance (DCR), and a low K-factor, making it suitable for high-frequency outputs and frequency-dependent circuits. With its low K-factor and through-hole mounting, it is suitable for high-reliability applications such as automotive and aerospace.

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