ET2835-038

Voltage Rating - AC:	250V
Package / Case:	Vertical, 4 PC Pin
Height (Max):	1.457" (37.00mm)
Size / Dimension:	1.240" L x 0.925" W (31.50mm x 23.49mm)
Mounting Type:	Through Hole
Features:	ESD
Approvals:	--
Ratings:	--
Operating Temperature:	-20°C ~ 105°C
Series:	ET
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	600 mOhm
Current Rating (Max):	1A
Inductance @ Frequency:	25mH @ 10kHz
Number of Lines:	2
Filter Type:	Power Line
Part Status:	Active
Packaging:	Bulk

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Common Mode Chokes

Common Mode Chokes, also known as common-mode filters, are specific electrical components that are used for suppressing common-mode electromagnetic interference (EMI). They are used in a wide variety of electronic circuitry. ET2835-038 is one of the most popular common-mode chokes, and it is often employed in designs that require high-frequency noise suppression. This article explores the application field and working principle of this device.Common-mode interferences are disturbances of three voltages, namely, line common, line single, and neutral. ET2835-038 is especially effective for suppressing alternation disturbances, which are oscillations of alternating electric currents through transformer primary windings. ET2835-038 consists of two coils wound on a Toroidal Ferrite core. The magnetic core provides an effective barrier to the passage of electromagnetic energy, thus reducing and suppressing interference. The two coils are symmetrically wound and electrically isolated from each other, so that they are able to carry different electric currents and be separately connected.The application field of ET2835-038 includes automotive, consumer electronics, security and surveillance systems, medical instruments, industrial systems, and power supplies. Its main application is to reduce electromagnetic interference in power supply systems and other AC-DC power transfer systems. Another application is to reduce common-mode interferences in signal transmission systems. The ET2835-038 can also act as a noise filter for switching power supplies, audio amplifiers, and motor drives.ET2835-038’s working principle is based on the principle of Electromagnetic Induction. It consists of two inductors which are wound in opposite directions and connected to two separate coupling points. In an alternating current circuit, the two inductors will create a voltage differential between the two coupling points. This voltage differential will act as a filter, transforming all higher frequency components to a lower frequency component. This helps reduce common-mode interference which is caused by higher frequencyCurrents.Common-mode chokes are heavily used in professional electronic engineering designs, and the ET2835-038 is one of the most popular devices. Its wide application field and the ability to reduce common-mode interference make it an ideal choice for a variety of electronic equipment. Its working principle is based on the principle of Electromagnetic Induction, and its two coils and magnetic core provide an effective barrier for suppressing EMI, thus providing excellent performance.

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