ASPI-0704S-181M-T

DC Resistance (DCR):	980 mOhm
Height - Seated (Max):	0.177" (4.50mm)
Size / Dimension:	0.287" L x 0.287" W (7.30mm x 7.30mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 85°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	ASPI-0704S
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	420mA
Tolerance:	±20%
Inductance:	180µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

Inductors are tools used to change electrical energy into magnetic energy and store it in a physical property, magnetic field, and then convert it back into electrical energy. Fixed inductors are the one among the famly inductors that are rigidly configured to form pre-defined inductance value at an electrical frequency. ASPI-0704S-181M-T, a specific type of fixed inductors equipped with axial leads and shielded inductors features with high permeability shielded, very low ESR (Equivalent Series Resistance). The combinations of its special design and superior quality material ensure its ability in providing sufficient performance under the working condition of high temperature and high current. As a fixed inductor, its application and working principle can be described as follows.

Application

Power Supplies

ASPI-0704S-181M-T can be used to stabilize power input and reduce the output ripple voltage of DC-DC switching converters. It can also be used in buck, boost and buck-boost converters to compensate the output stage current and improve the power quality index, which they can supply a steady voltage even the input voltage is unstable.

Filtering

In audio filter, ASPI-0704S-181M-T can be used to get in the way of signal dissipation, allowing the signal to travel faster and farther in an audio system. ASPI-0704S-181M-T can be used low pass, high pass and notch filters to select signals at particular frequencies or ranges of frequencies.

Ampl iners

When applied in an amplifier, ASPI-0704S-181M-T can be used to couple signal from one transistor or vacuum to another. More specifically, the fixed inductors can convert alternately current into alternating voltage, the flux produced by current flows in the inductor. In this case, the fixed inductors can be used as chokes, filters and transformers.

Working Principle

The basic operating principle of ASPI-0704S-181M-T is to withstand high currents and reduce voltage changes or drops in a system. For the former point, ASPI-0704S-181M-T features with high permeability coils which makes the inductance remain high even the current is high. Thus, the coil can maintain a high current capacity and reduce losses. On the other hand, for the latter point, its ESR drops sharply as frequencies increasing, which allows it to absorb more energy at the higher frequency and protect the circuit from voltage peaks.In a larger perspective, ASPI-0704S-181M-T follows Lenz\'s Law and Faraday\'s Law to convert electric power into magnetic power and vice versa. Lenz\'s Law states that the induced current which occurs in an inductor always flows in the direction which will oppose the applied voltage. Faraday\'s Law, on the other hand, states that when a coil of wire immersed in a changing magnetic field, electric current will be induced in the coil. Therefore, when externally applied an electric current, a magnetic field is created and core material helps to store and amplify it. Subsequently, when magnetic field decreases, it will generate an electric current in this inductor by Faradays Law.Overall, fixed inductors are tools widely used in power supplies, filtering and ampl iners. ASPI-0704S-181M-T is strictly pre-configured to provide specific inductance with lengthwise construction for high permeability and low ESR. Applying Lenz\'s Law and Faraday\'s Law, ASPI-0704S-181M-T can convert electric power into magnetic power and vice versa while sustaining the quality of power input and voltage supply under circumstances of high temperature and current.

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