TF3524TU-302Y3R0-01

Voltage Rating - AC:	--
Package / Case:	Horizontal, 4 PC Pin
Height (Max):	0.906" (23.00mm)
Size / Dimension:	1.358" Dia (34.50mm)
Mounting Type:	Through Hole
Features:	--
Approvals:	--
Ratings:	--
Operating Temperature:	-20°C ~ 120°C
Series:	TF
Voltage Rating - DC:	--
DC Resistance (DCR) (Max):	100 mOhm
Current Rating (Max):	3A
Number of Lines:	3
Filter Type:	Power Line
Part Status:	Obsolete
Packaging:	Bulk

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Common Mode Chokes are used in the field of electromagnetic interference in order to limit the electrical emissions and potential interference that can occur in circuit boards. The term “Common Mode” refers to electrical noise which occurs in both the positive and the negative lines of an electric system, and the chokes reducing this type of noise are collectively referred to as Common Mode Chokes. The specific example of a Common Mode Choke discussed in this paper is the TF3524TU-302Y3R0-01, and its application field and working principle will be discussed in further detail.Common Mode Chokes are typically used in applications where the supply potentials are high and noise immunity is low. Examples of these applications include RF power amplifiers, servers, computer systems, power conditioners, telecommunication equipment, and automobiles. Common Mode Chokes are also used to reduce noise and interference produced from the electric power lines. The TF3524TU-302Y3R0-01 Common Mode Choke is designed to reduce the common mode noise within the broad frequency range of 5kHz to 500kHz.The TF3524TU-302Y3R0-01 Common Mode Choke is designed with a metal enclosure and a printed circuit (PC) board with inductor layers. The inductor layers are constructed of two layers of spiral coils, and the metal enclosure is designed to shield the device from electrostatic and radio frequency interference. The printed circuit board contains a capacitor, which is connected to the inductors, and is used to create a resonant filter and increase the inductance at the selected frequency. The metal enclosure also contains an additional capacitor, which is located between the PC board and the inductors. This capacitor is used to further reduce the common mode noise emitted by the device.The working principle of the TF3524TU-302Y3R0-01 Common Mode Choke is based on the fact that it blocks the transmission of alternating or pulsed currents. The TF3524TU-302Y3R0-01 Common Mode Choke filters the noise interference by forming a series of closed loops around the printed circuit board. This causes the alternating current to flow around the circuit, creating an impedance which limits the noise emitted by the device. The amount of resistance the TF3524TU-302Y3R0-01 Common Mode Choke provides is dependent on the frequency of the alternating current and the area of the inductor coils. Due to the shielding effect of the TF3524TU-302Y3R0-01 Common Mode Choke, the amount of EMI and EMC interference that reaches the device is greatly reduced compared to other types of filters. Additionally, the TF3524TU-302Y3R0-01 Common Mode choke is designed with a self-resonant frequency of 3kHz, which allows the device to reduce the EMI and EMC interference up to 500kHz. This makes the TF3524TU-302Y3R0-01 Common Mode Choke ideal for applications where EMI and EMC interference must be controlled.The TF3524TU-302Y3R0-01 Common Mode Choke is highly effective in the reduction of common mode noise and is well-suited for applications that require high levels of noise immunity. The metal enclosure and the inductor layers of the TF3524TU-302Y3R0-01 Common Mode Choke work together to form a resonant filter, which reduces the levels of EMI and EMC interference emitted by the device. Additionally, the capacitor located between the PC board and the inductors works to further reduce the common mode noise emitted by the device, making the TF3524TU-302Y3R0-01 an ideal choice for applications which require high levels of noise immunity.

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