SPM5012T-3R3M-LR Inductors, Coils, Chokes

DC Resistance (DCR):	110 mOhm Max
Height - Seated (Max):	0.047" (1.20mm)
Size / Dimension:	0.213" L x 0.201" W (5.40mm x 5.10mm)
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-40°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	SPM-LR
Shielding:	Shielded
Current - Saturation:	4.5A
Current Rating:	2.5A
Tolerance:	±20%
Inductance:	3.3µH
Material - Core:	Metal
Type:	Wirewound
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Fixed Inductors are some of the most common and useful electrical components and can be used in an array of applications.The SPM5012T-3R3M-LR, a particular type of fixed inductor, is a step-down inductor with a minimum inductance of 3.3uH. This type of inductor is commonly used in power supply circuits and is adapted to meet the harsh functional and environmental requirements of a wide variety of applications. ​The SPM5012T-3R3M-LR inductor can be used in a variety of power supply circuits, including DC-DC converters, switch mode power supplies (SMPSs), and Class D amplifier power supplies (TDPSs). The inductor helps with voltage regulation and ripple suppression by delivering current to the load. This helps to maintain power supply efficiency and stability. The working principle of the SPM5012T-3R3M-LR fixed inductor is based on Faraday’s law, which states that a voltage is induced across an inductor when its magnetic field is changing. As current passes through the coil of the inductor, a magnetic field is generated around it, due to the wires crossing each other. As the current changes, the strength of the magnetic field also changes. This changing magnetic field produces the induced voltage across the inductor. Because the inductor is a fixed component, the current flowing through the inductor can create a lot of heat. Therefore, it is important to be aware of the temperature rating of the inductor before installation. The SPM5012T-3R3M-LR inductor has a temperature rating of 105°C, meaning it should be able to handle normal conditions during operation. The SPM5012T-3R3M-LR fixed inductor also has a maximum ripple current rating of 7A, which indicates the maximum ripple current the inductor can handle before saturation. This rating should be taken into account when designing the circuit, as too much ripple current can cause the inductor to become hot and may reduce the performance of the circuit. The SPM5012T-3R3M-LR inductor is also suitable for high frequency applications, such as switch mode power supplies and Class D amplifiers, thanks to its low DC resistance. This helps to reduce the amount of power loss due to the resistance of the inductor, keeping the circuit efficient. The inductor also has a low parasitic capacitance, which prevents the inductor from storing and releasing energy and ensures smooth and reliable operation. In conclusion, the SPM5012T-3R3M-LR fixed inductor is a versatile component used in a variety of power supply applications. The inductor helps with voltage regulation and ripple suppression by delivering current to the load, and is suitable for use in high frequency circuits thanks to its low DC resistance and low parasitic capacitance. Its temperature rating of 105°C and maximum ripple current rating of 7A should be taken into account when designing the circuit, in order to ensure optimal performance.

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