TCK-050

Voltage Rating - AC:	--
Package / Case:	Horizontal, 4 PC Pin
Height (Max):	0.346" (8.80mm)
Size / Dimension:	0.433" L x 0.433" W (11.00mm x 11.00mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-40°C ~ 105°C
Series:	--
Voltage Rating - DC:	500V
DC Resistance (DCR) (Max):	35 mOhm
Current Rating (Max):	3.3A
Inductance @ Frequency:	325µH @ 100kHz
Number of Lines:	2
Filter Type:	--
Part Status:	Active

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Common Mode Chokes

Common mode chokes are components used to reject high-frequency (HF) electromagnetic noise in electrical circuits. The TCK-050 is a common mode choke module specifically designed for use in medium-to-high-frequency switching power supplies. In this article, we will discuss the application fields and working principles of the TCK-050.The TCK-050 consists of ferrite beads and a balanced windings coil and is designed for use from 20 kHz to 500 kHz. It has a current rating of 0.5A, and offers excellent noise suppression properties. Its operating temperature range is -25°C to +85°C, and it is UL approved for leakage current to ensure user safety.

Application Field

The TCK-050 is mostly used in switching power supplies such as AC/DC and DC/DC converters. Its main purpose is to reduce the magnitude of noise generated by the switching action of the power supply. This reduces the radiation of the noise from the power supply, improving the electromagnetic compatibility (EMC) of the system. Another application for the TCK-050 is to reduce electromagnetic interference (EMI) produced by the power supply. It can be used to protect sensitive peripherals connected to the power supply, and reduce the possibility of misoperation due to EMI. This helps to ensure safety and reliability of the system.

Working Principle

The TCK-050 works by suppressing high-frequency noise within the power supply, and by rejecting noise picked up from outside the supply. The ferrite beads provide steady impedance over a wide range of frequencies, reducing high frequency noise. The balanced windings coil then rejects noise induced into the power lines.The TCK-050 does this by splitting the currents flowing through the power line symmetrically. This reduces the net current flowing between the power lines and ground, while simultaneously increasing the net current flowing between them. This reduction in current imbalance reduces the amount of noise induced into the power line, ultimately reducing the level of high-frequency noise.In conclusion, the TCK-050 is a common mode choke module designed for medium-to-high-frequency switching power supplies. It is used to reduce EMI and ensure user safety by suppressing high-frequency noise and rejecting noise picked up from outside the power supply. The primary components used to achieve this are ferrite beads and a balanced windings coil, which work together to reduce current imbalances and thereby reduce the noise induced into the power line.

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