SP1812-152J

DC Resistance (DCR):	98 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:	SP1812
Shielding:	Shielded
Current - Saturation:	1.69A
Current Rating:	1.43A
Tolerance:	±5%
Inductance:	1.5µH
Material - Core:	Ferrite
Type:	--
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Fixed inductors, or simply inductors, are basic components in most electronic circuits. They have long been used for storing energy, distributing currents, and filtering signals in a wide variety of applications. They are also used to create transitions between different frequencies in a variety of applications. The SP1812-152J is a type of fixed inductor from the EPCOS series that is specifically designed for Telecom applications.

Application Field

The SP1812-152J is a fixed inductor designed for specific purposes in telecommunications applications. It is a small 4-pin inductor designed to provide inductance values of 100μH with efficiency ratings of up to 90%. This inductor is suitable for inter-winding spacing requirements as small as 0.2mm, making it ideal for use in high-density applications. It is designed for both telecom filter applications and transmission line applications, providing a wide range of signal filtering and impedance modulation capabilities.

Working Principle

A fixed inductor works by forming a closed circuit with its two-terminal ends when current is passed through it. The current causes a magnetic field to be established at the terminals. This magnetic field creates a force that opposes the current flowing through the circuit. Because of its nature, the magnetic field of a fixed inductor depends on the voltage applied to the terminals. The amount of resistance, or impedance, created by the inductor is determined by the amount of current flowing through it. The impedance essentially acts as a filter, allowing only certain frequencies through while blocking others. It also distributes the current evenly and efficiently, and can be used to store energy and regulate it when needed.

Conclusion

The SP1812-152J fixed inductor is a versatile option for telecommunications applications. It is designed to meet the needs of high density applications, providing efficiency ratings of up to 90% and inter-winding spacing of as little as 0.2 mm. It provides excellent signal filtering and impedance modulation capabilities, and is suitable for both telecom filter applications and transmission line applications. Additionally, it also provides energy storage and efficient current regulation.

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