S1812R-391J

DC Resistance (DCR):	260 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:	1812 (4532 Metric)
Package / Case:	1812 (4532 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	25MHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	215MHz
Q @ Freq:	40 @ 25MHz
Series:	S1812R
Shielding:	Shielded
Current - Saturation:	--
Current Rating:	876mA
Tolerance:	±5%
Inductance:	390nH
Material - Core:	Iron
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors - S1812R-391J application fields and working principles

Fixed Inductors are amongst the most important passive components used in the field of electrical and electronics engineering. The S1812R-391J is a high-performance, high-precision, surface mount fixed inductor that is widely used in a variety of electrical and electronics product ranges.

What are Fixed Inductors?

Fixed inductors are critical electrical components used to store energy in a magnetic field. They consist of two basic parts: a coil wound around a core. The core can be made of ferrite, ferrite alloy, or other materials depending on the inductance required. Fixed inductors are significant components in the design of filters, timing circuits, oscillators and other logic circuits.

Application Fields

The S1812R-391J is a high-performance, high-precision surface mount fixed inductor. It is used in many different applications, including but not limited to, automotive and consumer electronic systems, such as television and microwave ovens, portable wireless devices, industrial control systems, electro-mechanical systems, avionics, and robotic systems. The S1812R-391J is also used in home security and surveillance systems, medical monitoring systems, and military systems such as radar and signal monitoring. Its small size and low power consumption makes it ideal for low power mobile applications.

Working Principle

The S1812R-391J is based on the basic working principle of an inductor. It creates a magnetic field around it when an alternating current is passed through it. This magnetic field is responsible for storing energy in the form of a magnetic field. The stored energy is then used to power different electrical and electronic systems.The voltage and current ratings of the S1812R-391J are specified according to the application in which it is used. For example, in portable wireless devices, it must be able to handle very low levels of power. Likewise, in industrial control systems, it must be able to handle high levels of current and power.The S1812R-391J features a high self-resonant frequency that allows it to operate at high frequencies with minimal voltage drop. It also has a high Q-factor, which makes it less prone to noise and other parasitic effects.

Conclusion

The S1812R-391J is a highly efficient, high-precision surface mount fixed inductor. It is used in a wide range of applications ranging from automotive and consumer electronic systems to industrial control systems, avionics, and military systems. Its high self-resonant frequency, high Q-factor, and low power consumption make it ideal for use in low power applications like portable wireless devices.

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