MALREKB05BA122N00K

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Aluminum Electrolytic Capacitors

Aluminum electrolytic capacitors use a thin layer of aluminum oxide to construct the dielectric layer instead of a plastic film like ceramic capacitors. The ability of aluminum electrolytic capacitors to store more energy than ceramic capacitors gives them a superior ability to handle higher frequencies and increased power. Their secondary benefit lies in extremely compact sizes for large wattages.

MALREKB05BA122N00K application field and working principle

The MALREKB05BA122N00K is a small form factor, long-life aluminum electrolytic capacitor with radial leads and snap-in mounting to radial socket for low frequency applications of up to 5,000 Hz. It is designed for a wide range of safety critical applications including medical devices, HMI control panels, and white goods.

The MALREKB05BA122N00K has a wide operating temperature range from -25°C to +105°C with better than 65% ripple current capability. The dimensions of the capacitor are 12mm (L) x 14.5mm (W) x 20.3mm (H). It is available in capacities ranging from 100uf to 1000uf. The capacitance tolerance is ±20%.

The working principle of the MALREKB05BA122N00K comes from the combination of aluminum foil and electrolyte. The aluminum electrodes are oxidized to create the dielectric needed for its operation. The electrolyte serves as a conductive medium, which allows charge to be stored and released accordingly. The charge is stored onto the electrodes, where the voltage creates a field across the dielectric. The stored energy is equivalent to the capacitance of the device.

Due to the construction of aluminum electrolytic capacitors, they are typically polarized, meaning that the positive and negative terminals must be connected correctly for it to function. This is true for the MALREKB05BA122N00K, which must have the positive terminal connected to the aluminum foil electrode and the negative terminal connected to the electrolyte.

The MALREKB05BA122N00K is suitable for high power circuits due to its high capacitance and low equivalent series resistance. It has a much higher energy density than ceramic capacitors, meaning that it can store more energy than a ceramic capacitor of the same size. Furthermore, it has a much lower temperature coefficient of capacitance, meaning that its capacitance will remain stable over its specified temperature range.

In summary, the MALREKB05BA122N00K aluminum electrolytic capacitor is a reliable and economical capacitor which is suitable for use in a variety of safety critical applications. Its construction utilizes aluminum foil and electrolyte to construct the dielectric layer, allowing for increased capacitance and power handling than other types of capacitors. Furthermore, its small size enables it to be used in high power circuits in tight spaces.

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