XLM-62R1137-R

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The XLM-62R1137-R Electric Double Layer Capacitor (EDLC) is a member of the Supercapacitors family. These advanced electronic components can be used as alternatives to traditional capacitors in many design applications, such as decoupling, energy storage, and energy filtering. This paper will analyze the XLM-62R1137-R EDLC\'s technical data, field of application and working principle.

Technical Data

The XLM-62R1137-R EDLC is a two-terminal, cylindrical ultra-capacitor with 5.9 Farads (F) of capacitance at 1.2 Volts (V) and a voltage range between 1.5V and 5.5V. It has low equivalent series resistance (ESR) of 0.02 Ohms at 1 kHz, 1.2V, and a maximum ESR of 0.4 Ohms. It can store an energy rating of 70 Joules (J) with current pulse ratings of 4 Amps (A) and 3A, respectively. Its small size of (62mm x 11mm) makes it easy to incorporate into electronic circuits without taking up too much space.

Applications

The XLM-62R1137-R EDLC is most commonly used in automotive, consumer, and power electronics applications, such as: switchmode power supplies, load balancing in LED lighting systems, automotive start stop systems, and miniaturized electronics. It is also used in energy harvesting systems, such as solar energy that is stored and managed in EVs, computers, and telecommunication infrastructure.

Working Principle

An EDLC is a type of capacitor that has an electrochemical double-layer composed of positive and negative ions, separated by a thin interface that forms a capacitive element with high stored energy ratings. An EDLC works by storing energy equivalent to its capacitance and discharging it when called upon. The operating voltage is determined by the combination of positive and negative ion concentrations at each interface, thus causing a very high capacitance. This in turn, allows for the operation of higher current pulses, while at the same time, exhibiting very little self-discharge.

When a voltage is applied to the EDLC, the ions are attracted to opposite terminals and a double-layer charge is formed. The ions are immobile within this double-layer, but the current is allowed to flow through the space between the ions. This current flow will be limited by the resistance created by the immobile ions and the resistance of the connecting wires, thus forming an almost perfect energy storage element.

An EDLC is capable of storing large amounts of energy in a very small package, making them very useful in a variety of applications. Additionally, they have low self-discharge rates, allowing them to maintain their charge for long periods and offering stable output power over the course of their lifetime.

In summary, the XLM-62R1137-R EDLC is a small, low resistance, high capacitance capacitor, designed for use in automotive, consumer, and power electronics applications. Its small size, low resistance, and high capacitance make it an ideal alternative to traditional capacitors for energy storage, decoupling, and energy filtering. It has a double-layer structure consisting of positive and negative ions that act as the energy storage element, allowing it to store large amounts of energy in a very small package and providing stable output power over the course of its lifetime.

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