420KXW39MEFC12.5X30

Ratings:	--
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.260" (32.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Lead Spacing:	0.197" (5.00mm)
Ripple Current @ High Frequency:	465mA @ 10kHz
Ripple Current @ Low Frequency:	310mA @ 120Hz
Applications:	General Purpose
Series:	KXW
Polarization:	Polar
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	420V
Tolerance:	±20%
Capacitance:	39µF
Lead Free Status / RoHS Status:	--
Part Status:	Active

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Aluminum Electrolytic Capacitors

Aluminum Electrolytic Capacitors are an essential part of modern electronics. They differ from traditional capacitors in that they have a cathode composed of a metal oxide, most commonly aluminum oxide. This capacitance increases as voltage is applied, allowing for high capacitance in a relatively small size. They are widely used in applications such as power supplies, audio amplifiers, and signal processing circuitry.The 420KXW39MEFC12.5X30 is a type of aluminum electrolytic capacitor. It is a through-hole device designed for PCB mounting, and can handle temperatures as low as -20°C and as high as 85°C. Its rated capacitance is 12.5uF, and its voltage rating is 420V. Its rated ripple current is 400mA.ApplicationsThe 420KXW39MEFC12.5X30 aluminum electrolytic capacitor is most commonly used in power supplies and audio amplifiers. In power supplies, the capacitor is used to control current flow to the load, while in audio amplifiers it helps to regulate power levels so that the right levels of distortionless sound quality can be achieved.The capacitor can also be used in frequency filters, timing circuits, and signal processing circuits. In these applications, it helps to control the amount of energy or current that is passed through, as well as the timing and accuracy of the signals.Working PrincipleThe working principle of the 420KXW39MEFC12.5X30 aluminum electrolytic capacitor is based on the Faraday effect. As voltage is applied to the capacitor, it polarizes the metal oxide dielectric. This polarization creates an electric field running through the capacitor that increases the effective capacitance of the device.When AC voltage is applied to the capacitor, the Faraday effect causes a current flow between the capacitor\'s plates. This current is then discharged, allowing the capacitor to retain a charge that can be used for various electrical functions. It is this stored charge that is used to achieve the desired capacitance.ConclusionThe 420KXW39MEFC12.5X30 aluminum electrolytic capacitor is an important component in many electronic devices. It works by having a metal oxide dielectric that can be polarized by applying voltage. This increases the capacitance of the device, allowing it to serve a wide range of applications including power supplies, audio amplifiers, and signal processing circuits. With its high capacitance and low temperature ratings, the 420KXW39MEFC12.5X30 aluminum electrolytic capacitor is a reliable and versatile choice for many applications.

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