4SW270M Capacitors

Type:	Polymer
Capacitance:	270µF
Tolerance:	±20%
Voltage - Rated:	4V
ESR (Equivalent Series Resistance):	9 mOhm
Lifetime @ Temp.:	2000 Hrs @ 105°C
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Applications:	General Purpose
Ripple Current @ High Frequency:	3.5A @ 100kHz
Lead Spacing:	--
Size / Dimension:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Height - Seated (Max):	0.114" (2.90mm)
Surface Mount Land Size:	0.287" L x 0.169" W (7.30mm x 4.30mm)
Mounting Type:	Surface Mount
Package / Case:	2917 (7343 Metric)
Series:	PC-CON, SW
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Obsolete
Moisture Sensitivity Level (MSL):	--

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Aluminum - Polymer Capacitors

Aluminum-polymer capacitors provide a thin, high-performance solution for electronic device designs. These capacitors have become a popular choice for a wide variety of applications including audio, video, computer, and automotive applications. The 4SW270M aluminum-polymer capacitors offer high capacitance, low impedance, high ESR and a low ESR in a small size hence providing superior performance compared to traditional capacitors.The 4SW270M is a type of aluminum - polymer capacitor. It is a surface mount version of the standard Snap-In-Lug style capacitor. It is constructed of a foil electrode in the aluminum-polymer film with a solid metal lug weld bonded to the top of the assembly. This provides a high degree of stability and reliability. The aluminum-polymer film used in the construction has a higher breakdown voltage and permits greater capacitance per unit volume than traditional aluminum electrolytic capacitors.The 4SW270M has a higher capacitance than traditional aluminum electrolytic capacitor and an improved ESR. The maximum ESR is less than 35mΩ and the minimum capacitance is over 270uF. This capacitor is well suited for high frequency applications or when high capacitance capacitors are required in a small space.The working principle of the 4SW270M aluminum-polymer capacitor is similar to that of other capacitors. It consists of two metal plates which are separated by a dielectric material. The dielectric material also functions as the insulator. When a voltage is applied across the terminals of the capacitor, electrical charge will accumulate on one metal plate and then an opposite electrical charge will accumulate on the other metal plate. This creates an electrical field between the two metal plates, which is referred to as dielectric polarization. This polarization of the dielectric causes the capacitance between the two metal plates to increase, thus increasing the total capacitance of the capacitor.The 4SW270M is suitable for a wide range of applications including power supply filtering, frequency filtering and high voltage input filters. Its surface mount design makes it suitable for printed circuit boards and enclosures with limited space. Furthermore, its low leakage current allows it to be used in applications where high reliability and accuracy are required.In summary, the 4SW270M aluminum-polymer capacitors provide a compact and highly efficient solution for high capacitance applications. Their low ESR and low leakage current make them suitable for use in a variety of applications. This type of capacitor offers superior performance compared to traditional electrolytic capacitors and provides superior performance for both commercial and industrial applications.

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