400QXW150MEFC16X40

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The 400QXW150MEFC16X40 is an aluminum electrolytic capacitor, part of a huge family of capacitors which feature high volumetric efficiency and high energy density. It is typically used in automotive, power and medical applications, where large amounts of capacitance and energy stored are required in a small space, often in conditions of high temperatures, vibration and shock. Below are further details about its application field and working principle.

Application Field

Aluminum electrolytic capacitors are a non-polarized, radial-leaded type of capacitor, commonly used for decoupling in power supply circuits, working as a bridge from the power supply to load. They are used in such fields as HVAC, industrial equipment, telecom systems, automotive, medical and broadcast equipment. The 400QXW150MEFC16X40 is a perfect choice for high capacitance store applications, due to its high voltage and capacitance values. It also features an extremely small size, which allows for installation even in the most confined spaces.

The robust construction and design of this type of capacitor make it a top choice for harsh environments. It features a ruggedized case and lead-out which increase its capability to withstand shocks and vibration. Designed to resist high currents and high temperatures, the 400QXW150MEFC16X40 is an ideal choice for applications where long life reliability is needed.

Working Principle

This type of capacitor works by storing an electric charge in the form of an electrical double layer. This double layer is formed of two parallel plates, one of them being an aluminum electrolyte coated in a thin layer of solid electrolytic oxide. An electric current applied to the capacitor causes electrons to pass through the oxide layer and establish an electric field in between the oxide and the aluminum plate, forming an electric double layer. The electric capacitance of the capacitor is then determined by the area and separation of the two plates.

A higher capacitance is obtained by reducing the gap between the plates or increasing the surface area of the two plates. The 400QXW150MEFC16X40 features a larger capacitance in respect to its size thanks to its advanced construction architecture. The optimized mounting and packing structure connected to the higher area of power supply leads through reduced insulation offers a higher leakage current and improved ripple current characteristics.

At the same time, the improved dielectric performance of the device allows for an enhanced pulse capability. The aluminum electrolytic capacitor can be continuously operated within its specified temperature range (normally -55°C to + 85°C) and is suitable to be used in conditions characterized by a high ripple current and circuit impedance.

Overall, the 400QXW150MEFC16X40 aluminum electrolytic capacitor is a reliable and robust solution to many power supply applications. Its combination of small size, increased capacitance and ripple currents, makes it the perfect component for a range of applications which require large amount of capacitance and energy stored in a confined space.

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