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Fixed Inductors

The ER1025-03JR is a 1.2mH surface-mount fixed inductor from EPCOS. Fixed inductors are ideal components when integrating or optimizing inductive-based components into an application. This specific inductor delivers an impedance of 0.99 Ohms with a rated current of 5.3 mA. Offering a storage temperature range of -55°C to +150°C and a max operating temperature of 85°C, the ER1025-03JR ensures a long service life even in extreme environments.

Application Field

Fixed inductors are a critical component of several types of electronic devices including many types of consumer electronics. A few common examples are PC motherboards, variable speed motors, analog monitors, digital recording or playback devices, telecommunication equipment, or video circuits. As each application has unique requirements, there are nearly limitless applications to consider for a fixed inductor.

Working Principle

Fixed inductors are used to store magnetic energy and release it into a circuit. The basic principle behind the function of an inductor is farad\'s law, which states that inductors will resist any change to the current in a circuit. The stored energy is then released into a circuit when the current begins to fall. Inductors are much more effective when connected in series with a capacitor in order to form an LC or resonant circuit to generate a specific frequency.

Conclusion

The ER1025-03JR is an ideal surface-mount fixed inductor for applications requiring a 1.2mH inductor with an impedance of 0.99 Ohms and a max rated current of 5.3 mA. With an operating temperature range of -55°C to +150°C and a max operating temperature of 85°C, this versatile component provides reliable operation in a wide variety of consumer electronics. Moreover, when properly utilized in series with a capacitor, the ER1025-03JR helps to create a high-precision LC or resonant circuit that can be used to generate a desired frequency or power output in an application.

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