ESMG161ELL391MP30S

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Aluminum Electrolytic Capacitors, commonly referred to as ‘Electros’, are an important component in electronics. They are particularly useful in low to moderate ripple and high frequency applications, as they are typically able to be manufactured to smaller sizes than conventional electromagnetic and polyester film capacitors.

The ESMG161ELL391MP30S is a specialised aluminium electrolytic capacitor manufactured by Electronic Components (EC). It is a miniature radial-leaded, non-solid, aluminum electrolytic capacitor with a nominal capacitance of 16μF, a rated voltage of 16V and a rated current of 100mA. It offers excellent temperature and ripple characteristics, making it suitable for use in a wide range of demanding applications.

Application Field
Due to its miniature size and improved temperature and ripple characteristics, the ESMG161ELL391MP30S is well-suited to a wide range of applications. These include power supplies, switch mode power supplies and other power electronic applications, computers and peripherals, hearing aids, radio receivers, televisions and consumer electronics, as well as professional audio and medical imaging equipment.

Working Principle
Aluminum electrolytic capacitors are constructed from two pieces of aluminum foil, rolled up and separated by a thin electrical insulator. This is known as the anode and cathode, respectively. When the capacitor is filled with an electrolyte solution, it creates an formation of ions on the electrodes, which can absorb or give away electrons in the circuit, creating an electrical charge. This charge creates a potential across the capacitor, allowing electrical current to flow between the two pieces of aluminum foil.

During charging, the ions are attracted towards the cathode, causing the electric field within the capacitor to decrease. This reduces the electric potential across the capacitor and causes current to flow. As current continues to flow, the ions on the cathode are further attracted to the cathode, resulting in an increasing electric potential. When the capacitor reaches its maximum charge, the electric potential across it is at its highest.

During discharging, the ions on the cathode are repelled away from the anode, causing a decrease in the electric potential. This reduced electric potential causes current to flow from the capacitor, reducing the charge stored. As current continues to flow, the ions on the anode become further repelled away from the cathode, resulting in a decreasing electric potential. When the capacitor reaches its minimum charge, the electric potential across it is at its lowest.

The ESMG161ELL391MP30S is designed to have excellent ripple current capabilities in order to minimize heat dissipation. As such, the ripple current rating of the capacitor is approximately 4 times its rated current. This allows it to withstand to the demands of many applications where current is rapidly fluctuating.

Overall, the ESMG161ELL391MP30S is an excellent choice for a variety of applications due to its small size, excellent temperature and ripple characteristics, and its high current rating. It is precisely this combination of characteristics which enables the ESMG161ELL391MP30S to perform in a wide range of demanding applications.

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