PM40-331K

DC Resistance (DCR):	20 Ohm Max
Height - Seated (Max):	0.126" (3.20mm)
Size / Dimension:	0.177" L x 0.126" W (4.50mm x 3.20mm)
Supplier Device Package:	1812
Package / Case:	1812 (4532 Metric)
Mounting Type:	Surface Mount
Inductance Frequency - Test:	796kHz
Operating Temperature:	-55°C ~ 125°C
Ratings:	--
Frequency - Self Resonant:	3MHz
Q @ Freq:	30 @ 796kHz
Series:	PM40
Shielding:	Unshielded
Current - Saturation:	--
Current Rating:	85mA
Tolerance:	±10%
Inductance:	330µH
Material - Core:	Ferrite
Type:	Molded
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Fixed Inductors

Fixed inductors are energy storage devices that can react to electric current in the circuit. They are widely used in various fields, such as telecommunications, radio communications, audio and video equipment, computers, automotive electronics, and consumer electronics. Among them, one of the commonly used fixed inductors is PM40-331K.

Application Field

PM40-331K is a type of power inductor designed to meet the stringent requirements of switched mode power supplies. It is used in a wide range of applications, such as dc-dc converters, inverters, power modules, and other energy-saving devices.In terms of telecommunications, PM40-331K is mainly used in power amplifiers, xDSL modems, RFID systems and other electronic systems. It can provide sufficient performance and stability to ensure the normal transmission and operation of these communication systems.In terms of audio and video equipment, PM40-331K is mainly used in audio amplifiers, video recorder players, and other equipment. It can effectively reduce the distortion in audio amplifiers, prevent signal interference, and improve the transmission stability of video recorder players.In terms of automotive electronics, PM40-331K is mainly used in electric power systems and vehicle fuel systems. It can effectively reduce the noise generated by engine working, increase the system\'s stability and reliability, and meet the requirements of the corresponding power systems.In terms of computers, PM40-331K is mainly used in motherboard circuits, hard disk circuits, graphic chip circuits, and other circuits. It can provide strong anti-interference performance, ensure the normal operation of the computer, and make computer systems more reliable.In terms of consumer electronics, PM40-331K is mainly used in various digital products, such as mobile phones, digital cameras, handheld game consoles, and so on. It can effectively reduce the power loss in digital products, make the device more energy efficient, and protect the device from potential damage.

Working Principle

The basic working principle of PM40-331K is the same as that of other fixed inductors. When electrons pass through it, it produces a magnetic field. Because of the self-inductance effect, the inductor will limit the rate of change of current, or dc current.In the circuit, PM40-331K can store energy through electromagnetic induction. It also has the ability to resist the frequency changes of alternating current, so as to filter out high-frequency signals. In addition, it can also reduce or eliminate interference signals to improve the performance of the related circuit.When PM40-331K is used on alternating current circuits, the magnetic field in the inductor will produce a voltage opposite to the initial current. This counter electromotive force can reduce the current flow, thus achieving the regulation of current in the circuit.ConclusionPM40-331K is an important type of fixed inductor widely used in many types of equipment. Its main function is to store and regulate current in the circuit, so as to reduce noise and interference. It has excellent performance and is widely used in telecommunications, audio and video equipment, automotive electronics, computers, and consumer electronics.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description