DFEH10040D-1R5M=P3 Inductors, Coils, Chokes

DC Resistance (DCR):	5 mOhm Max
Height - Seated (Max):	0.157" (4.00mm)
Size / Dimension:	0.429" L x 0.394" W (10.90mm x 10.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100MHz
Operating Temperature:	-40°C ~ 155°C
Ratings:	AEC-Q200
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	DFEH10040D
Shielding:	Shielded
Current - Saturation:	19A
Current Rating:	14A
Tolerance:	±20%
Inductance:	1.5µH
Material - Core:	Iron Powder
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors

A fixed inductor, sometimes known as a choke, is an inductor with magnetic cores that store electrical and magnetic energy in the form of a field coil. The most widely used in the industry is the DFEH10040D-1R5M=P3. This type of fixed inductor is used in various applications that require a stable, reliable, and precise inductance range, such as those found in filters, power supplies, circuits, and oscillators.

Application Field of DFEH10040D-1R5M=P3 Fixed Inductors

DFEH10040D-1R5M=P3 fixed inductors are used for low power, wide-bandwidth applications ranging from dc blocking and filtering to circuit tuning and diode protection. Common applications include television antennas, radio-frequency receiver design, audio systems, and electronic musical instruments. Typically, fixed inductors have a high inductance rate and are able to react quickly to changes in the amount of current passing through them.DFEH10040D-1R5M=P3 fixed inductors are also suitable for power supplies, oscillators, and control circuits, as they can provide circuit stability in areas where changes in the frequency of the control signals must be minimized. Moreover, when applied to power supplies, they tend to reduce the amount of noise or distorting high-frequency voltage.

Working Principle of DFEH10040D-1R5M=P3 Fixed Inductors

The primary purpose of using fixed inductors is to provide a magnetic field that is uniform in space and time for the purpose of filtering or controlling electric current. Electrical current flow through a coil of wire winding round the iron core of the fixed inductor, which in turn creates a magnetic field. The magnitude of the magnetic field intensity created within the core is determined by the amount of current flowing and the number of turns in the coil of wire (the number of turns determines the inductance). The magnetic flux within the core is proportional to the effective area of the core and the number of turns of the inductor coil, which is the same as the amount of current passing through it.The magnetic field produced by the fixed inductor wraps the coil, thus forcing the electric charges moving in the coil to be deflected. This deflection creates a counter electromotive force, which opposes the flow of the electric current. The resulting electrical energy losses (eddy currents and hysteresis losses) in the core dissipate as energy in the form of heat. To maintain a relatively constant current for a given amount of time, the inductance of the fixed inductor must increase as the frequency changes. Overall, the fixed inductor is used to ensure the flow of current and control current in an efficient and stable manner. Additionally, the magnetism generated by the fixed inductor also contributes to the flow of current, thus providing stability and high efficiency for the device and its respective application.

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