SPM4020T-4R7M Inductors, Coils, Chokes

DC Resistance (DCR):	144.1 mOhm Max
Height - Seated (Max):	0.079" (2.00mm)
Size / Dimension:	0.173" L x 0.161" W (4.40mm x 4.10mm)
Supplier Device Package:	--
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
Shielding:	Shielded
Current - Saturation:	2.6A
Current Rating:	2.2A
Tolerance:	±20%
Inductance:	4.7µH
Material - Core:	Metal
Type:	Wirewound
Part Status:	Not For New Designs
Packaging:	Tape & Reel (TR)

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Fixed Inductors

A fixed inductor is an electronic component in which the inductance value is fixed and not adjustable. They are used as components in many different types of devices, such as filters, chokes, suppressors, transformers, baluns and more. One such fixed inductor that is commonly seen in today’s electronics is the SPM4020T-4R7M.

SPM4020T-4R7M Application Field and Working Principle

SPM4020T-4R7M is an SMD fixed inductor from the company M-Tron Industries. It is a low profile, power inductor offering excellent saturation current and board placement characteristics that makes it ideal for cell phone, PDA, and Laptop power supplies. It is rated for 4.7uH and can deliver up to 27.5A of current.The SPM4020T-4R7M is an ideal solution when high power and inductance values are desired. The device has an excellent saturation current rating of 27.5A that allows it to be used for a wide variety of applications. It is also capable of operating up to 420mhz and has a maximum operating temperature of 105 degrees Celsius.The working principle of the SPM4020T-4R7M is based on electromagnetic induction. This is the theory which states that electrical current flowing through a conductor creates a magnetic field around it. This magnetic field induces a voltage in another conductor which is placed in close proximity to the first conductor. This voltage creates the inductance of the component.The SPM4020T-4R7M has been designed with the highest quality components to ensure stability and reliability. It is rated for 4.7uH and can accept up to 27.5A of current without distortion or saturation. It is designed with an internal temperature monitoring system that will shut down the component before it reaches the maximum operating temperature.The SPM4020T-4R7M is a great solution for high wattage and inductance requirements. It is used in applications that require filtration, chokes and other types of devices or components. The device is also the perfect choice for cell phones, PDA’s and laptops as it can accept high power and temperatures without distortion or saturation.

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Part Number	Manufacturer	Price	Quantity	Description