ER1641-272JM

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Fixed inductors are sometimes referred to as inductors, chokes, coils, or reactors. They are used for many applications, from transformers, to reactor-stabilized circuits, to adjustable inductors. The ER1641-272JM is a fixed inductor, part of the E-series from ERSE Electronics, suitable for DC/DC conversion applications.

Applications and Uses

The ER1641-272JM is most often used in DC/DC conversion, specifically switching converters. This includes Buck, Boost, and Buck/Boost converters. It’s a preferred choice because of its wide operating temperature range of -55°C to +125°C. It also has an inductance of 0.27µH, with a current range of 0.2A to 6.0A.

Other applications include over-voltage & current protection, input/output filtering, DC & AC power supply, RF energy transfer and charging. It is also ideal for use in circuitry with high frequencies, temperature changes, and mechanical vibrations, as its construction is ruggedized and highly resistant to environmental changes.

Design and Construction

The ER1641-272JM is constructed of a core material made of ferrite, and an outer layer made of copper. It is an encapsulated inductor, which means that it is housed in an epoxy shell. This serves two purposes: holding the components securely, and protecting them from dust, water, and other debris that could damage it. ERSE Electronics takes special care to ensure that all inductors in their E-Series are of the highest quality, and the ER1641-272JM has been carefully designed and tested to do its job to the best of its ability.

Working Principle

The working principle for the ER1641-272JM is simple but effective. The inductor acts as an energy storage device, storing any excess current that flows through it. This means that when the load on the system changes, the current does not spike, allowing the system to remain stable. The inductor does this by acting as a resistor to the flow of current, meaning it blocks it from flowing too quickly, and therefore does not allow large, sudden increases in current.

The ferrite core of the ER1641-272JM helps to amplify this effect, as its permeability increases the inductance, and therefore increases the resistance to current flow. The copper outer layer also helps to conduct current efficiently, reducing the amount of energy loss due to voltage drop over long distances.

Conclusion

The ER1641-272JM is an excellent choice for DC/DC converters, as well as for other applications that require an inductor with a wide temperature range and high resistance to current flow. Its robust construction helps it withstand environmental changes, and its wide current range helps it maintain stable load conditions even under varying conditions.

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