1537-47G

DC Resistance (DCR):	2.6 Ohm Max
Height - Seated (Max):	--
Size / Dimension:	0.156" Dia x 0.375" L (3.96mm x 9.53mm)
Supplier Device Package:	--
Package / Case:	Axial
Mounting Type:	Through Hole
Inductance Frequency - Test:	2.5MHz
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	25MHz
Q @ Freq:	60 @ 2.5MHz
Series:	1537
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	198mA
Tolerance:	±2%
Inductance:	27µH
Material - Core:	Iron
Type:	Molded
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed InductorsFixed inductors, also known as inductors, coils, chokes, or reactors, are popular passive components, used as part of resonance circuits and for other purposes, such as power filtering and impedance matching. The 1537-47G fixed inductor is a compact, molded inductor engineered for wide band and broadband matching applications. With high current rating, this inductor is a great choice when precision inductance is needed in high frequency applications.Application FieldThe 1537-47G fixed inductor is a popular choice in the aerospace, medical, instrumentation and instrumentation, and cellular network industries. The space-saving design and high current rating make it ideal for high frequency applications such as those used in W-CDMA and WiMax base stations, flat panel display systems, and satellite and broadcast overlay systems.The 1537-47G is also used in a variety of digital and analog applications; from consumer electronics to test and measurement devices, and from automotive audio/ video systems to the most demanding application fields.Working PrincipleThe 1537-47G fixed inductor works on the principle of inductance, which is based on Faraday’s law of induction. The basic principle is that when an electric current is applied to an inductor winding, a voltage is induced in that winding; the magnitude of the induced voltage depends on the rate of change of the current which is applied.To work as a fixed inductor, the 1537-47G uses an air gap in the core to increase the inductance. The air gap also reduces the self-resonance frequency of the inductor, helping to improve performance in high frequencies applications. The use of a toroidal shape also helps to increase the inductance. This shape increases the number of turns of wire and reduces the magnetic flux leakage, making it ideal for high frequency applications; hence, the 1537-47G is a very good choice for applications where space and weight are at a premium.ConclusionThe 1537-47G fixed inductor is a compact, high current inductor, designed for wide band and broadband matching applications. With its precision inductance and high power rating, it is a great choice for high frequency applications, and has established itself as the go-to choice for aerospace, medical, instrumentation, cellular network, consumer electronics, automotive audio/video, and other industries. By utilizing Faraday’s law of induction and a number of design principles, the 1537-47G is able to provide reliable performance year after year.

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