ASPI-0704S-681M-T Inductors, Coils, Chokes

Inductance Frequency - Test:	100kHz
Mounting Type:	Surface Mount
Package / Case:	Nonstandard
Supplier Device Package:	--
Size / Dimension:	0.287" L x 0.287" W (7.30mm x 7.30mm)
Height - Seated (Max):	0.177" (4.50mm)
Series:	ASPI-0704S
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Wirewound
Material - Core:	Ferrite
Inductance:	680µH
Tolerance:	±20%
Current Rating:	220mA
Current - Saturation:	--
Shielding:	Shielded
DC Resistance (DCR):	4.63 Ohm Max
Q @ Freq:	--
Frequency - Self Resonant:	--
Ratings:	--
Operating Temperature:	-40°C ~ 85°C

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Introduction

Fixed inductors, also known as chokes, are components that produce a magnetic field when current flows through them, allowing them to store magnetic energy in the form of a magnetic field. The ASPI-0704S-681M-T is a ceramic leaded inductor which is designed to be used in low power applications.

Applications

The ASPI-0704S-681M-T is a commonly used inductor in consumer electronics applications, such as cell phones, portable music players, and many other devices utilizing power that requires circuit noise suppression and/or impedance matching. These inductors can be used as power suppression filters to ensure that RF signals do not interfere with the signals of the device, as well as impedance matching by helping stabilize the current path in a circuit, allowing power to be efficiently transferred from one part of the circuit to the other. The inductor is able to provide a consistent current flow as the load increased or decreases with each cycle. This offers a unique benefit in devices that require quick modulation of the power current. Thanks to its low saturation current and current efficiency, the ASPI-0704S-681M-T can be used for automotive, DC/DC, and switching power converter applications.

Working Principle

The ASPI-0704S-681M-T works by inducing a magnetic field into a conductor when current flows through it, which then creates an opposing force known as an inductance. The strength of the inductance is dependent on the size and shape of the coiled wire used. This inductor is designed such that it is able to maintain its predetermined inductance level regardless of the changes in current or voltage. Inductors can be used in two different ways, either as a filter or an impedance matching device. When used as a filter, the inductor will act as an obstacle between two different signals, blocking one and allowing the other to pass through. This is useful for situations such as protecting audio signals from electromagnetic interference from nearby devices or blocking undesired frequencies from reaching the device. When used as an impedance matching device, the inductor helps to keep the current path stable, allowing for better power transfer from one part of the circuit to the other. The ASPI-0704S-681M-T can accommodate a wide range of voltages, currents, and frequencies which makes it one of the most versatile inductors on the market.

Conclusion

In conclusion, the ASPI-0704S-681M-T is a ceramic leaded inductor that is designed for use in low power applications. With its low saturation current, current efficiency, and ability to maintain a predetermined inductance level in changing conditions, the inductor is an invaluable tool for automotive, DC/DC, and switching power converter applications. It is able to be used as a filter or an impedance matching device, making it one of the most effective components in noise suppression and power transfer.

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