PM3316-330M Inductors, Coils, Chokes

DC Resistance (DCR):	100 mOhm
Height - Seated (Max):	0.209" (5.30mm)
Size / Dimension:	0.500" L x 0.394" W (12.70mm x 10.00mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	100kHz
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	--
Q @ Freq:	--
Series:	PM3316
Shielding:	Unshielded
Current - Saturation:	2A
Current Rating:	2.1A
Tolerance:	±20%
Inductance:	33µH
Material - Core:	Ferrite
Type:	Wirewound
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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Fixed Inductors: PM3316-330M Application Field and Working Principle

Fixed inductors, also known as chokes, are electrical components that offer considerable impedance to a conducted signal while offering little resistance to direct current (DC) signals. They can be found in a range of electrical systems from battery-powered electronics to industrial power systems, and are characterized by a series or parallel orientation along with an inductance value indicating their level of opposition to a varying signal. The PM3316-330M is an example of a parallel, two-terminal fixed inductor that offers a variety of applications for a wide range of industries. This article examines the application field and working principle of this fixed inductor.

Applications

The PM3316-330M is a two-terminal, surface-mount, shielded inductor with a 10uH inductance and a 2 x 2 package size. It is ideal for power circuit designs that require high current filtering, such as automotive electronics, Power over Ethernet (PoE) systems, and data center switching power supplies. The small package size of the PM3316-330M makes it a great choice for designs that require tuning and impedance matching capabilities, such as mobile communication equipment, medical equipment, and satellite navigation systems. Due to its low saturation and strong shielding features, the PM3316-330M can also be used in filtering circuits for power line communications systems.

Working Principle

The PM3316-330M is a two-terminal, parallel inductor that functions by introducing high impedance to alternating (AC) current signals. By circulating a current through a coil of wire, the PM3316-330M is able to store magnetic energy and create an opposing inductive reactance, which is the unit of measurement used to indicate resistance to AC signals. The PM3316-330M is able to increase or decrease this reactance through the adjustment of its coil current or coil inductance, creating different levels of impedance in order to control the power transmitted within a given circuit. The inductance value of the PM3316-330M is 10uH, which is a measure of its ability to store energy within its coil. This value is fixed and determined by the length of wire and the number of turns within the coil. The shielding feature of the PM3316-330M reduces interference and ringing, enabling it to work effectively in noisy circuits while providing a significant suppression of both spike noise and frequency noise.

Additional Features

The PM3316-330M has an operating temperature range of -40 to +125°C and a DC current rating of up to 116.4 mA. It also features an equally high and low inductance tolerance of ±15% which ensures enhanced reliability in operation. Additionally, the PM3316-330M utilizes a special wedge high-voltage bypass structure which allows for improved current flow and reduces heat generation. This allows the inductor to be used in relatively high voltage circuits, further enhancing its versatility.

Conclusion

The PM3316-330M is an ideal choice for power and noise filtering applications that require high performance and reliability. Its low inductance tolerance and strong shielding features make it perfect for both low-power and high-current applications. Furthermore, its small size and high operating temperature tolerance make it a great fit for a variety of design scenarios. With its high power rating and high resistance to interference, the PM3316-330M is a great option for applications that require increased signal strength and noise suppression.

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