DC Resistance (DCR):	150 mOhm Max
Height - Seated (Max):	--
Size / Dimension:	1.812" Dia x 0.750" W (46.02mm x 19.05mm)
Supplier Device Package:	--
Package / Case:	Radial
Mounting Type:	Through Hole
Operating Temperature:	--
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	1540
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	4A
Tolerance:	±15%
Inductance:	500µH
Material - Core:	--
Type:	Toroidal
Part Status:	Active
Packaging:	Bulk

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Fixed Inductors

Inductors are passive electronic components that store energy in a magnetic field when an electric current is passed through them. The most common type of inductor is the fixed inductor, which is often used to provide a constant current to circuits. The 1540M17 is a type of fixed inductor developed by the ST Microelectronics company. This article will provide a brief overview of the 1540M17 inductor, including its application fields and working principle.

Application Field

The 1540M17 fixed inductor has a wide variety of applications, including power supplies, power converters, voltage regulators, automotive applications, and mobile devices. The 1540M17 offers excellent accuracy due to its low temperature coefficient and high consistency. This makes it suitable for high precision applications.In addition, the 1540M17 has a very low ESR, making it ideal for high current circuits. This allows the 1540M17 to be used in circuits that require high currents, such as power distribution systems and high current switching. The 1540M17 also has a very low self-inductance, making it particularly suitable for use in noise-sensitive circuits.

Working Principle

The 1540M17 works based on the principle of mutual induction, where a magnetic field generated by one winding induces a current in another winding. The primary winding of the 1540M17 consists of two series coils, each with a single turn. When a current passes through the primary winding, a magnetic field is generated, which in turn induces a current in the secondary winding. This current is then capable of providing a constant current to the load.The 1540M17 also has an integrated magnetic shield which helps to reduce the amount of noise generated by the inductor. This helps to ensure that the 1540M17 can be used in noise-sensitive applications.In addition, the 1540M17 has an integrated temperature-sensing device which allows it to automatically adjust the inductance in order to maintain a constant current output. This makes the 1540M17 an ideal choice for applications that require highly stable current.

Conclusion

The 1540M17 fixed inductor is a versatile component with a wide range of applications. Its high accuracy and low temperature coefficient make it ideal for use in precision circuits. Thanks to its low ESR and inductance, the 1540M17 is suitable for high current and noise-sensitive applications. The integrated magnetic shield and temperature-sensing device further increase the versatility of the 1540M17, making it an ideal choice for many applications.

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