SP1812R-392J

DC Resistance (DCR):	200 mOhm Max
Height - Seated (Max):	0.134" (3.40mm)
Size / Dimension:	0.189" L x 0.134" W (4.80mm x 3.40mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	1kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	SP1812R
Shielding:	Shielded
Current - Saturation:	1A
Current Rating:	1A
Tolerance:	±5%
Inductance:	3.9µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed InductorsInductors can be classified into two broad categories: fixed inductors and adjustable inductors. Fixed inductors, also known as non-adjustable inductors, are those that cannot be adjusted when a current passes through them. A specific inductance value is set before the circuit is connected, and that same value is maintained throughout its lifespan, regardless of the amount of current flowing through it. This type of inductor is often used in circuits where a very precise inductance is required, such as an oscillator circuit.One example of a fixed inductor is the SP1812R-392J, an inductor from Toko Corporation. This inductor is a fixed inductor designed for use in a wide variety of electronic circuits, including audio circuitry, power circuits, and telecommunications. The SP1812R-392J features a low DC resistance, high inductance, low impedance, and excellent stability. It is a surface mount inductor with a maximum operating voltage of 50 V and a maximum current of 2.5 A.The working principle of the SP1812R-392J fixed inductor is based on Faraday\'s Law of Induction, which states that an electromotive force is induced across a loop of conductor when there is a changing magnetic field. The SP1812R-392J is a wound inductor typically mounted on a printed circuit board. When an alternating current passes through the inductor, a magnetic field is generated in the winding of the inductor which produces a voltage drop across the inductor. This voltage drop is then used to generate a current in the winding, which is then used to generate the desired inductance.The SP1812R-392J fixed inductor is often used in many types of electronic devices, as it is designed to handle both analog and digital applications. In telecommunications, the SP1812R-392J is used as a line-impedance matching transformer, and is also ideal for use in filters and oscillator circuits, due to its high stability in inductance value. In audio systems, the SP1812R-392J can be used for controlling the power distribution in tweeters, woofers, and other audio output components. Its low DC resistance and low impedance makes it an ideal choice for use in systems that require a high power delivery. The SP1812R-392J can also be used as a DC blocking/blocking capacitor in applications where DC blocking is required.The SP1812R-392J is an easy to install fixed inductor with an attractive and rugged construction. It is an effective, reliable, and robust inductor for a wide variety of applications, and its design is suitable for use in both analog and digital circuits.

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