ER1025-30JR

Series:	ER1025
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Molded
Material - Core:	Iron
Inductance:	2.7µH
Tolerance:	±5%
Current Rating:	335mA
Current - Saturation:	--
Shielding:	Unshielded
DC Resistance (DCR):	550 mOhm Max
Q @ Freq:	37 @ 7.9MHz
Frequency - Self Resonant:	100MHz
Ratings:	--
Operating Temperature:	-55°C ~ 105°C
Inductance Frequency - Test:	7.9MHz
Mounting Type:	Through Hole
Package / Case:	Axial
Supplier Device Package:	--
Size / Dimension:	0.095" Dia x 0.250" L (2.41mm x 6.35mm)
Height - Seated (Max):	--

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Fixed Inductors

Inductors, also known as coils, are basic components used in circuits for filtering, clamping, measurement, protection, control, and insulation. The ER1025-30JR is a fixed inductor, which is an inductor with a permanent--or unchanging--inductance value. In other words, the inductor\'s momentary inductance value does not change as long as the current flowing through it is within its working range.

Application Field

Fixed inductors like the ER1025-30JR are found in countless varieties of devices from consumer electronics like radios, televisions, smartphones, and computers, to medical and industrial electronics. Their importance lies in their ability to store electrical energy and control current in circuits. The ER1025-30JR has a relatively large inductance value, making it suitable for use in power converters, automotive applications, telecommunications, and in high-power audio systems. It can also be used for general signal filtering and high-speed switching applications.

Working Principle

An inductor works on the same physical principle as a solenoid. When an alternating current passes through a solenoid, a magnetic field is generated and the field strength, or inductance, of the solenoid increases as the current increases. Similarly, when an alternating current passes through an inductor, a magnetic field is generated and the field strength, or inductance, increases with the current flow. As the current passes through the ER1025-30JR, a changing magnetic field is created by its windings, which induces a current in the opposite direction. This creates an electromagnetic counter force that opposes the current. As a result, the inductor works like an energy storage device and allows excess energy to be stored as a magnetic field and released slowly, resulting in a more consistent, smooth current flow. This also helps protect components in the circuit from the sudden changes in current that can lead to inaccuracies and malfunctions.

Conclusion

The ER1025-30JR is a fixed inductor that can be used for many different applications. Its large inductance value makes it well-suited for use in power converters, automotive applications, telecommunications, and in high-power audio systems. It also offers good protection for components in the circuit from sudden changes in current by acting as a storage device. This allows the component to release stored energy slowly, resulting in a more consistent current flow.

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