M1331-821K

DC Resistance (DCR):	270 mOhm Max
Height - Seated (Max):	0.145" (3.68mm)
Size / Dimension:	0.320" L x 0.125" W (8.13mm x 3.18mm)
Supplier Device Package:	--
Package / Case:	Nonstandard
Mounting Type:	Surface Mount
Inductance Frequency - Test:	25MHz
Operating Temperature:	-55°C ~ 105°C
Ratings:	--
Frequency - Self Resonant:	165MHz
Q @ Freq:	38 @ 25MHz
Series:	M1331
Shielding:	Shielded
Current - Saturation:	405mA
Current Rating:	405mA
Tolerance:	±10%
Inductance:	820nH
Material - Core:	Iron
Type:	--
Part Status:	Active
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

Introduction

M1331-821K is a type of fixed inductor, which is a passive electrical component manufactured from a coil of wire. It is used to create an induced current or voltage by creating a changing magnetic field when a direct current is passed through it. The M1331-821K is specially designed for high-current applications with a significant inductance.

Applications

The M1331-821K is mainly used as a filter component in power supplies, switching circuits, and other circuits related to the system. It helps reject noise and provide stable power supply, and ensures a certain frequency performance in the system operation. It is mainly used for AC/DC adapter, charger, laptop, LCD/LED TV, mobility, and server system. It has the advantages of high inductance and low DCR.

Working Principle

When an electric current is applied to an inductor, a magnetic field is generated around the inductor that links a certain number of loops of the coil. The current flowing in the coil is then interrupted or reduced by this magnetic field, and this results in an induced emf. This induced emf is caused by the changing magnetic field caused by the current, and it creates a self-induced and opposite current in the winding of the coil. When the inductor is not connected to any load or other electrical system, the current will continue to flow in the same direction even when the input current is reduced or stopped. This is known as a persistent current. This phenomenon is caused by the magnetic field accumulated in the core of the inductor, which resists the change in the current by acting as an additional electrical resistance. This is known as electrical resistance.

Conclusion

The M1331-821K fixed inductor has many advantages for high current applications, such as high inductance, low DCR and ability to reject noise. Its primary applications are related to power supply systems, such as AC/DC adapter, chargers, laptops, LCD/LED TVs, mobility, and server systems. When a current is passed through the inductor, a self-induced current is created due to the changing magnetic field which results in an induced emf. The magnetic field that is created resists the changes in the current, acting as a form of electrical resistance.

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

Part Number	Manufacturer	Price	Quantity	Description