SRR3818A-330M Inductors, Coils, Chokes

Q @ Freq:	--
Height - Seated (Max):	0.079" (2.00mm)
Size / Dimension:	0.150" L x 0.150" W (3.80mm x 3.80mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Features:	--
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 150°C
Ratings:	AEC-Q200
Frequency - Self Resonant:	20MHz
Series:	SRR3818A
DC Resistance (DCR):	740 mOhm Max
Shielding:	Shielded
Current - Saturation:	340mA
Current Rating:	650mA
Tolerance:	±20%
Inductance:	33µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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SRR3818A-330M Inductors are fixed inductors mainly used for applications such as high-frequency switching, DC-DC converters, general purpose filtering, and feedback circuits. SRR3818A-330M inductors are typically used when a high quality magnetic flux density at higher temperatures is required.SRR3818A-330M core materials are composed of a high silicon content ferrite. This ferrite provides superior performance at high temperatures with low DC bias magnetic fields. Ferrite materials ensure higher inductance value over traditional air-gapped ferrite and iron-core inductors and this makes SRR3818A-330M inductors an ideal choice for high-frequency filtering applications. The power dissipation capacity of SRR3818A-330M inductors is high and can handle up to 250 mA. The working principle of SRR3818A-330M inductors is based on the fundamentals of magnetic flux. When an alternating current (AC) passes through a coil, a magnetic field is formed around the coil and the current is stored in the form of inductance. The inductance can be determined by the number of wire turns of the coil, the type of wire used, and the material used to form the magnetic core.The SRR3818A-330M inductor is composed of a ferrite magnetic core, a coil and a sleeve. When the coil of the inductor carries an alternating current, the core creates a magnetic field around it. This magnetic field attracts and concentrates the electric field of the AC current due to its magnetomotive force, which is proportional to the number of wire turns. As the AC current changes, the magnetic field around the core also changes. This fluctuating magnetic field induces a voltage in the coil and the current is stored in the form of inductance.The core materials of SRR3818A-330M inductors are optimised to have high thermal conductivity and low electrical losses during high frequency operations. The sleeve of the inductor connects the core and the coil, providing additional protection against external fields. In DC-DC converters and other applications, the sleeve of the SRR3818A-330M inductor is also used to provide shielding against magnetic fields generated by other components.SRR3818A-330M inductors are used in various DC-DC converter topologies such as buck converters, boost converters, buck/boost converters, and forward converters. Furthermore, they can also be used in other power electronics applications such as inverters, power supplies, motor drivers, and brushless DC motors. In conclusion, fixed inductors, such as SRR3818A-330M, utilize ferrite magnetic cores to create a magnetic field when an alternating electric current is applied to their coils. This magnetic field induces a voltage in the coil which is stored in the form of a magnetic flux. SRR3818A-330M components balance the power dissipation and heat generating capacity with their benefits, making them an ideal choice for high-frequency switching applications and other power electronics undertakings.

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