ECQ-E2123JFB

Operating Temperature:	-40°C ~ 105°C
Features:	--
Ratings:	--
Applications:	General Purpose
Lead Spacing:	0.295" (7.50mm)
Termination:	PC Pins
Height - Seated (Max):	0.492" (12.50mm)
Size / Dimension:	0.406" L x 0.173" W (10.30mm x 4.40mm)
Package / Case:	Radial
Mounting Type:	Through Hole
Series:	ECQ-E(F)
Dielectric Material:	Polyester, Metallized
Voltage Rating - DC:	250V
Voltage Rating - AC:	--
Tolerance:	±5%
Capacitance:	0.012µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction
Film capacitors, also known as polyester capacitors, are a type of capacitors used in various industries. The ECQ-E2123JFB is one of the most popular film capacitor types available today. It is a polyester-film capacitor, with a dielectric strength of 250 volts, a tolerance of ±10%, and a rated temperature range of -55°C to +125°C. It is available in various sizes and capacitances, offering good short-term voltage, and long-term stability. It can also be used in various applications such as RF circuits, high-frequency switching circuits, and oscillators.ECQ-E2123JFB Application Field
The ECQ-E2123JFB is a polyester-film capacitor that is commonly used in electronic circuits. It is suitable for low level RF, high-frequency switching circuits, and oscillators, as well as for high-frequency noise suppression. The ECQ-E2123JFB is also ideal for use in high-temperature, low-resistance circuits, since it can handle temperatures up to 125℃. It is also used in the automotive industry and in audio applications, as well as in instrumentation and sensing circuits.Working Principle
Film capacitors are capacitors made of polyolefin films, which have alternating layers of polyester and polyether. The polyester has a higher dielectric constant than the polyether, and so the capacitance of the capacitor is determined by the difference between the two layers. When a voltage is applied to the capacitor, the charge is stored in the polyester layer, and then transferred to the polyether layer when the voltage is reversed. This process is known as charge transfer. The charge transfer occurs due to the difference in the dielectric constants of the two layers.Advantages
The ECQ-E2123JFB has several advantages over other types of capacitors. It offers a high dielectric strength, making it suitable for high-temperature, low-resistance circuits. It is also available in various sizes and capacitances, offering good short-term voltage and long-term stability. The ECQ-E2123JFB also offers excellent dielectric absorption and frequency characteristics, as well as good insulation qualities.Conclusion
The ECQ-E2123JFB is a versatile and reliable film capacitor that is suitable for use in many different applications. Its high dielectric strength makes it ideal for high-temperature, low-resistance circuits, and its various sizes and capacitances offer good short-term voltage and long-term stability. It is also available in different sizes and capacitances, which makes it suitable for a wide range of applications. With its excellent dielectric absorption and frequency characteristics, as well as good insulation qualities, the ECQ-E2123JFB is a versatile and reliable film capacitor.

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