400QXW120MEFC14.5X40

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.654" (42.00mm)
Size / Dimension:	0.571" Dia (14.50mm)
Lead Spacing:	0.295" (7.50mm)
Ripple Current @ High Frequency:	1.185A @ 10kHz
Ripple Current @ Low Frequency:	790mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	QXW
Operating Temperature:	-40°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	120µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Introduction

Aluminum electrolytic capacitors are the most commonly used capacitors in electronic circuits, and the 400QXW120MEFC14.5X40 capacitor is one of them. Aluminum electrolytic capacitors are polarized capacitors that use electrolytic as the medium. They are widely used in various electronic circuits due to their high capacitance, wide frequency range, low internal resistance, low leakage current, and wide temperature range.

Application fields

The 400QXW120MEFC14.5X40 capacitor is mainly used in audio, radio, and television equipment, electronic and electrical instruments, telecommunications equipment, computers, and other electrical areas.In the audio field, the 400QXW120MEFC14.5X40 capacitor is usually used as an alternating power supply filter, electronic conditioning amplifier, and audio amplifier. In the radio field, it can be used as a filter component in high-frequency (HF) and ultra-high frequency (UH F ) receivers, and it can also be used as a smoothing filter in the power supply and detection system of high-frequency transmitters. In television, they are mainly used in power supplies as filter components; and in the electronic and electrical instrumentation sector, they are used as frequency regulation components in frequency meters and oscilloscopes. In the communications sector, they are used as components of communication power supply filters and amplifier circuits. In the computer field, they are widely used in motherboards, printer power supplies, monitors, and other peripheral devices.

Working principle

The working principle of the 400QXW120MEFC14.5X40 capacitor is the same as that of other aluminum electrolytic capacitors. It is made up of two layers of aluminum foil that are anodized and separated by electrolyte. When a positive voltage is applied to the outer layer of the aluminum foil, electrons are attracted to the opening of the electrolyte to form a negatively charged layer. At the same time, a positively charged layer is formed on the inner surface of the aluminum foil.The positive and negative charges in the two layers of the aluminum foil form a capacitance, which is used to store the charge. When the capacitor is discharged, the charge stored in the capacitor is rapidly released, and this is the principle that the capacitor works.

Conclusion

The 400QXW120MEFC14.5X40 capacitor is a typical aluminum electrolytic capacitor, which is widely used in many electronic devices and circuits. Its working principle is mainly based on initial charge storage, and the charge is rapidly released when the capacitor is discharged. It is a reliable and cost-effective component, and it can be used in various applications.

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