207446-3 Connectors, Interconnects

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The 207446-3 circular connector is typical in aerospace and military applications, including aircraft, avionics, radar systems, and military communication equipment. It is a cost-effective interconnect solution and is especially designed for high-speed data applications with frequency range up to 4 GHz. 207446-3 circular connector consists of a plug part and a receptacle part. The plug part is fixed on the cable end and is connected to the mating receptacle part installed in the chassis of the equipment.

The 207446-3 circular connector has the following features:

• Impedance characteristic is 50 Ohm, meeting the requirements of MIL-STD-348C.
• The contact is protected by a stainless steel shell. An anti-reflection characteristic can be achieved by using an EMI gasket.
• The modular/self-locking design principle is used for better assembly and disassembly.
• As contact shapes are available in solid sockets, blades and oscillating type.
• Two polarization styles EMI shielding or none.

The working principle of the 207446-3 circular connector is based on the principle of impedance matching. When the plug part of the connector is inserted into the receptacle part, the contacts of the plug part and the receptacle part are located in the same plane and they are connected through a dielectric sleeve, which functions as a low-loss conductor. The contacts are either gold plated or silver plated, which ensures the contacts are properly insulated from each other. In addition, an EMI gasket is used between the shell and the contact to prevent any EMI leakage and ensure the signal transmission is stable.

In summary, the 207446-3 circular connector is an ideal solution for high-speed data applications, since it has a good impedance matching and EMI shielding characteristics which makes it suitable for use in aerospace and military applications.

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