400SAW22MEFC12.5X25

Polarization:	Polar
Package / Case:	Radial, Can
Mounting Type:	Through Hole
Surface Mount Land Size:	--
Height - Seated (Max):	1.063" (27.00mm)
Size / Dimension:	0.492" Dia (12.50mm)
Lead Spacing:	0.197" (5.00mm)
Ripple Current @ High Frequency:	184mA @ 10kHz
Ripple Current @ Low Frequency:	160mA @ 120Hz
Applications:	General Purpose
Ratings:	--
Series:	SAW
Operating Temperature:	-25°C ~ 105°C
Lifetime @ Temp.:	2000 Hrs @ 105°C
ESR (Equivalent Series Resistance):	--
Voltage - Rated:	400V
Tolerance:	±20%
Capacitance:	22µF
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors are widely used in modern electronics due to their ability to hold electric charge and their dependable performance over a long time-span. This article will focus specifically on the 400SAW22MEFC12.5X25 model, discussing its application field and its working principle.

Applications

Aluminum electrolytic capacitors, including the 400SAW22MEFC12.5X25 model, are used in many areas of electronics. Their most common application is in the filtering of power signals, such as in power supplies and high-frequency circuits; they are well-suited to these applications due to their high peak current capabilities. Additionally, the 400SAW22MEFC12.5X25 model is often used as the primary filtering device in automotive audio systems, such as the ones present in the modern vehicles.

Working Principle

A typical aluminum electrolytic capacitor consists of a metal wound body with two terminals at the ends, one positive and one negative. Inside the capacitor is an electrolyte, a conductive fluid separator, and two metal sheets referred to as the anode and the cathode. Absorption by the electrolyte causes a chemically produced nitrogen oxide layer to form upon the anode, creating the capacitor\'s capacitance. When an electrical current is applied to the capacitor, the current passes through the electrolyte and creates an electric field around the cathode. This electric field creates a potential difference between the two terminals, allowing the capacitor to store the electric charge.The 400SAW22MEFC12.5X25 aluminum electrolytic capacitor model has a capacitance of 22 microfarads and a maximum working voltage of 125 volts. It also has a wide temperature range, with a temperature coefficient of -20% at 0°C and a maximum operating temperature of 105°C. This makes it ideal for electronic applications that require high temperature stability and long service lives.

Conclusion

The 400SAW22MEFC12.5X25 is a popular aluminum electrolytic capacitor model that is well-suited to power supply filtering and automotive audio applications. Its ability to tolerate high temperatures and store large amounts of electric charge make it ideal for use in these types of applications.

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