SEK4R7M100ST

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Aluminum electrolytic capacitors are passive components that store electric energy and release it when required. They are constructed of an anode (or cathode) made of a metal foil, usually aluminum, and a dielectric (or electrolyte) that is electrolytically formed around the anode. The two poles are connected to two opposite terminals, usually called cathode and anode respectively. The SEK4R7M100ST is an aluminum electrolytic capacitor typically used in switching power supply applications. This article will discuss the application field and working principle of the SEK4R7M100ST.

The SEK4R7M100ST aluminum electrolytic capacitor is typically used in switch-mode power supplies (SMPS) for applications that require high-frequency ripple current. It offers a wide operating temperature range of -40°C to +105°C and a high ripple current rating of 2.4A at a temperature of +105°C. This capacitor is also able to withstand high-frequency ripple currents up to 2.5A, while still providing excellent capacitance retention.

The SEK4R7M100ST aluminum electrolytic capacitor has a robust construction, which helps to ensure stability during power-cycling applications. Its internal construction consists of two parallel capacitance plates, separated by an electrolyte material, and contained within a metallic canister. The capacitance plates are composed of a thin layer of corrosion-resistant aluminum foil. Additionally, the anodized aluminum foil is wrapped in a paper-like porous material to protect it from short circuits.

When applying a voltage to the device, the anode and cathode undergo an exchange of electrons. This exchange of electrons causes a circuit to be created where current flows from the terminal connected to the anode down through the electrolyte material to the terminal connected to the cathode. The energy stored in the device is then released through this circuit, allowing for current to flow through the external circuit.

The SEK4R7M100ST aluminum electrolytic capacitor also offers excellent reliability due to its use of an electrolyte impregnation process which coats the capacitor’s electrodes with a highly stable, Ion Permeable Film (IPF). This film helps to reduce losses and increases the capacitors’ life-span. Furthermore, by utilizing the IPF technology, the SEK4R7M100ST can be used in harsh environmental applications.

The SEK4R7M100ST aluminum electrolytic capacitor is a specialized power-cycling device which is used in applications requiring high frequency ripple currents. It has a robust construction wherein two parallel capacitance plates, separated by an electrolyte material, and contained within a metallic canister. Additionally, it offers excellent reliability as it is coated with IPF, which reduces losses and increases the capacitors’ life-span. This capacitor is typically used in switch-mode power supplies (SMPS) applications for applications that require high-frequency ripple current.

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