SP1210-334G

DC Resistance (DCR):	26.8 Ohm Max
Height - Seated (Max):	0.101" (2.57mm)
Size / Dimension:	0.138" L x 0.105" W (3.51mm x 2.66mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	SP1210
Shielding:	Shielded
Current - Saturation:	71mA
Current Rating:	88mA
Tolerance:	±2%
Inductance:	330µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

Fixed Inductors are components that are able to store energy in a form of magnetic flux when a changing current is applied to them. When the current is taken away, the inductor will “release” its energy in a form of a voltage. Good examples are common filters, transformers, planar inductors and solenoids. The SP1210-334G series inductors are specifically designed to meet the needs of applications where relatively high inductance values are required.

Application Field

The SP1210-334G fixed inductor series is mainly used for providing instantaneous current in power supply circuits, EMC filter applications, low voltage lighting applications and general electronic circuitry. The SP1210-334G inductor also can be used for auxiliary circuits used as DC/DC converters, power charging supplies, audio circuits, audio amplifier supplies, low voltage motor control circuits, noise filter circuits to reduce inrush current and similar applications. This inductor series also has wide range of impedance values (from 10uH to 56uH) making it suitable for a number of DC/DC converter applications used in portable devices such as cellphones, notebook and tablet personal computers.

Structure

The SP1210-334G series inductor is a small surface mount fixed inductor designed with double shielding and low profile and low-ESR (Equivalent Series Resistance) technology. It has a metallic magnetic core and high permeability magnetic material. It contains external materials such as high heat-resistant resin cover and enamel wire. The inductors are shielded and feature a low impedance value. The usage of high-temperature resistant coating provides protection and allows varnish winding for relatively higher power usage and works in higher temperature range.

Physical Properties & Safety Features

The SP1210-334G inductor has a high performance and provides stable DC bias characteristics. Its size of 12x10mm makes it suitable for form factors with limited free space.The inductor is designed with safety features providing a secure operating environment. It features a high current rating of up to 3.3A and is compact due to its small dimensions. It also provides for a low temperature coefficient and low DWV (Dielectric Withstanding Voltage).

Working Principle

The way an inductor works is based on the principle of Faraday’s Law. When a changing current is applied to the inductor, a magnetic flux is created. This is because of the changing amount of current in the inductor. The inductor binds up this magnetic energy and when the current is decreased or extinguished, the inductor releases this energy in the form of a voltage.The SP1210-334G series inductor uses this principle to achieve the desired effect in power circuits. It works at frequencies from DC to 1MHz and provides effective filtering for EMI interference. It is also able to control inrush current to reduce the peak of the current and ensure safe operation of the application.

Conclusion

In conclusion, the SP1210-334G series inductor is a high-performance component for providing instantaneous current and controlling peak current in a variety of applications including power supplies, EMC filter applications, low voltage lighting applications and general electronic circuitry. It uses the principle of Faraday’s Law to provide a higher inductance value with a low-impedance. Additionally, it features a high current rating of up to 3.3A and a low temperature coefficient.

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