CD17FC681JO3F

Series:	CD17
Packaging:	Bulk
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Capacitance:	680pF
Tolerance:	±5%
Voltage - Rated:	300V
Dielectric Material:	Mica
Operating Temperature:	-55°C ~ 150°C
Mounting Type:	Through Hole
Package / Case:	Radial
Lead Spacing:	0.232" (5.90mm)
Features:	RF, High Q, Low Loss
Size / Dimension:	0.469" L x 0.209" W (11.90mm x 5.30mm)
Height - Seated (Max):	0.390" (9.90mm)

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Mica and PTFE Capacitors: CD17FC681JO3F Application Field and Working Principle

Mica and PTFE capacitors (polytetrafluoroethylene) are used to reduce noise and alter characteristics in radio frequency (RF) circuits. They are also known as “accurate” capacitors due to their low drift rate. Such capacitors have dielectrics which consist of mica and PTFE sheets sandwiched together, as well as terminations made of nickel or silver. In most cases, the capacitors can resist temperatures up to 120 deg. C, and are also resistant to environmental variations such as humidity and wind.The CD17FC681JO3F capacitor is a type of mica and PTFE capacitor. Its application field includes working with such electronics as an RF amplifier, oscillator, amplifier, transceiver, signal conditioner, and digital signal processor, giving them all enhanced performance without adding any noise. It also has a good balance between its inductance and its capacitance, which allows it to be used in larger scale circuit blocks where greater amounts of power are being exchanged.The CD17FC681JO3F\'s working principle is based on the idea that different types of electric current interact with both mica and PTFE sheets in different ways. Alternating currents, which change with frequency, are largely unaffected by mica but influenced by PTFE, whereas direct current interactions show the opposite. As a result, when electricity is passed through the capacitor, the combination of the two different materials will create an electrical resistance and form a buffer between the circuit and the current, reducing or eliminating noise and unwanted influence on the signal.When in use, the capacitor can be connected as part of a leaded, SMD (Surface Mount Device) or through hole components so that output impedance can be adjusted while enabling significantly reduced EMI (electro-magnetic interference). In addition, when used in combination with other components, the capacitor can increase the efficiency of circuits running within a defined operating frequency.Mica and PTFE capacitors, such as the CD17FC681JO3F, have excellent noise suppression properties and low inductance. Not only is the material highly stable and durable, its low drift rate makes it ideal for precision applications such as radio antenna gain control circuits and sophisticated medical equipment. Due to their versatility, mica and PTFE capacitors have seen steady growth in industrial markets owing to their ability to reduce costs and size of electronic products, while still providing reliable performance and longevity. As technology continues to evolve, these capacitors are expected to play an even bigger role in the electronic industry.

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