25SEF180M

Series:	OS-CON™, SEF
Packaging:	Digi-Reel®
Lead Free Status / RoHS Status:	--
Part Status:	Active
Type:	Polymer
Capacitance:	180µF
Tolerance:	±20%
Voltage - Rated:	25V
ESR (Equivalent Series Resistance):	16 mOhm
Lifetime @ Temp.:	1000 Hrs @ 125°C
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Applications:	General Purpose
Ripple Current @ Low Frequency:	73.5mA @ 120Hz
Ripple Current @ High Frequency:	1.47A @ 100kHz
Lead Spacing:	0.138" (3.50mm)
Size / Dimension:	0.315" Dia (8.00mm)
Height - Seated (Max):	0.472" (12.00mm)
Surface Mount Land Size:	--
Mounting Type:	Through Hole
Package / Case:	Radial, Can

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Aluminum - Polymer Capacitors

Aluminum - Polymer capacitors, also known as Aluminum polymer electrolytic capacitors, are made from a solid electrolyte formed from a thin polymer film. This last layer is laminated between two positively-charged aluminum layers, trapping the electrolyte and creating a capacitor. This type of capacitors offers greater ripple current handling ability, improved volumetric efficiency, and lower impedance, making them suitable for high-frequency, high-voltage power applications, such as in energy storage systems, lighting and motor control devices, and high-power communications systems.The 25SEF180M is a specific type of aluminum-polymer capacitor manufactured by AVX Corporation. This capacitor has a range of capacitance values between 25 nano-farads (nF) and 2000 micro-farads (µF) with a rated voltage of 180 volts. This particular capacitor has several features, including a low ESR (equivalent series resistance) of 2 milliohm and relatively high resonant frequency of 1 to 1.2GHz.In terms of application field, the 25SEF180M aluminum-polymer capacitor can be used in a variety of applications that require high ripple current handling and low ESR. This capacitor is ideal for power stabilizers, power conversion, DC-DC converters, motor control, and lighting systems due to its high capacitance range and low ESR. Its high resonant frequency also makes it suitable for use in high-frequency switching circuits.When it comes to working principle, the 25SEF180M aluminum-polymer capacitor is based on the electrolytic principle, which states that when a capacitor is charged, a layer of ions forms on its positive pole, while electrons accumulate on its negative pole. The ions and electrons form a barrier that keeps the charge on the capacitor, allowing it to act as an electrical energy reservoir. The 25SEF180M capacitor uses a thin polymer film as its solid electrolyte, which creates a voltage-dependent electrical resistance between the two plates. The capacitor\'s capacitance is also affected by the charge within the electrolyte, since the higher the charge, the higher the capacitance. As the voltage across the capacitor increases, the capacitance decreases, and vice versa.In summary, the 25SEF180M aluminum-polymer capacitor is an ideal solution for applications that require high ripple current handling and low ESR. This type of capacitor is suitable for use in power stabilizers, power conversion, DC-DC converters, motor control, and lighting systems, as well as in high-frequency switching circuits, due to its low ESR and high resonant frequency. Furthermore, its working principle is based on the electrolytic principle, wherein ions and electrons form a barrier, allowing the capacitor to act as an electrical energy reservoir.

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