HM28-42057LF

Voltage Rating - AC:	250V
Package / Case:	Vertical, 4 PC Pin
Height (Max):	1.693" (43.00mm)
Size / Dimension:	1.437" L x 0.984" W (36.50mm x 25.00mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	--
Series:	HM28
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	100 mOhm
Current Rating (Max):	3.5A
Inductance @ Frequency:	6mH @ 1kHz
Number of Lines:	2
Filter Type:	--
Part Status:	Discontinued at Digi-Key
Packaging:	Bulk

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

Common Mode Chokes play a major role in electrical engineering and are widely used when electromagnetic compatibility (EMC), hazard prevention, and noise suppression are required in electronic systems. The HM28-42057LF is a common mode choke designed to reduce or eliminate the interference caused by electromagnetic fields. It is a planar transformer with a unique design that allows the coils to be positioned close to each other on a single substrate.This common mode choke has a wide range of application fields, from information technology to industrial automation, from consumer electronics to communication systems, etc. It is also suitable for filter networks, which are used in many electronic circuit applications to protect sensitive circuits and reduce noise. The choke also finds applications in high-precision AC/DC motor drives, power line filters, and industrial control systems.In addition, the choke has a low DC resistance, making it an ideal component for high current applications, such as power electronics. The choke is also designed to provide maximum EMI/EMC performance with a minimum of power loss, making it suitable for noise reduction and signal conditioning in all types of digital systems.The working principle of the HM28-42057LF common mode choke is based on inductance. The choke has two independent windings, one primary and one secondary, which are wound around a common core. The two windings are geared toward each other, and when alternating current flows in the two windings, inductors generate a magnetic field. This magnetic field will oppose the induced current, and thus reduce the amount of noise, or reduce the interference due to electromagnetic fields.The HM28-42057LF displays excellent common mode current suppression and also a high common mode impedance at low frequencies. Thus it makes a great choice for applications that involve high-voltage and high-frequency signals. The choke provides excellent interference cancellation, resulting in a wide common mode rejection ratio. Furthermore, due to the high inducement of the winding configuration, the HM28-42057LF has a high impedance to interference currents, making it ideal for applications that involve several frequencies. Overall, the HM28-42057LF common mode choke provides an effective means to reduce common mode noise and interference. The choke has a wide range of application fields and excellent performance characteristics, making it suitable for many types of digital devices, motor drives, power lines, and in general almost any electronic circuit. In addition, its compact size and good insulation makes it a great choice for a variety of applications.

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

Part Number	Manufacturer	Price	Quantity	Description