744902033 Inductors, Coils, Chokes

DC Resistance (DCR):	200 mOhm Max
Height - Seated (Max):	0.022" (0.55mm)
Size / Dimension:	0.063" L x 0.031" W (1.60mm x 0.80mm)
Supplier Device Package:	0603 (1608 Metric)
Package / Case:	0603 (1608 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	300MHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	6GHz
Q @ Freq:	15 @ 300MHz
Series:	WE-TCI
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	300mA
Tolerance:	±0.1nH
Inductance:	3.3nH
Material - Core:	--
Type:	Thin Film
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors – 744902033 Application Field and Working Principle

Fixed inductors are a form of electrical component consisting essentially of an insulating material, typically ceramic, wrapped with or containing multiple coil windings. These can come in different shapes and forms such as the more traditional single loop bobbin form or more complex and also will have a variety of inductance values depending on the application. Fixed inductors are also known as fixed power inductors, or more simply known as chokes, these components are primarily used in power supplies and low power applications to suppress electromagnetic interference (EMI). In this article, we will explore the 744902033 series of fixed inductors and how the various design parameters affect the outcome of the device.The 744902033 series of fixed inductors is a type of choke specifically designed for EMI suppression in systems with high voltage spikes. It consists of a high-density form-bonded ferrite core around a single-loop winding of wire, coated in an epoxy resin. The epoxy seal used to insulate the windings offers additional protection for the device against the high spikes of voltage encountered in operation. The single coil winding has two windings shielded together to reduce capacitive coupling and resistive losses while simultaneously increasing stability. The 744902033 series features a high-current capacity of up to 12A and a wide operating temperature range of -55°C to 200°C. The various design parameters of the 744902033 series of fixed inductors have been carefully engineered for optimum performance.The primary application for the 744902033 series of fixed inductors is EMI suppression in high frequency applications. The single coil winding of the device is shielded together to reduce capacitive coupling which helps to reduce interference in the system from external components. The inductor also serves to suppress circuit-level RF noise that is often encountered in high-speed systems. In addition to EMI suppression, the 744902033 series of chokes are also ideal for applications such as decoupling, current sensing and filtering circuits.The operating principle for the 744902033 series of fixed inductors is based on Faraday\'s law of electromagnetic induction. When electricity is introduced into the device, a changing magnetic field is generated around the winding, which in turn induces a current in the other winding. This current in the other winding is then resisted by the inductance of the device, resulting in reduced voltage and current in the circuit. This is how the device works to suppress EMI and other forms of interference in a circuit.In conclusion, the 744902033 series of fixed inductors is a type of EMI suppressed choke specifically designed for high voltage and high frequency applications. Its single coil winding is shielded together to reduce capacitive coupling which reduces interference in the system from external components. The inductance of the device helps to suppress circuit-level RF noise that is often encountered in high-speed systems, and its high-current capacity and wide temperature range make it suitable for a wide range of applications.

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