133-3801-211

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Coaxial Connectors (RF)

Coaxial connectors, commonly known as RF connectors, provide an efficient way of connecting two circuits together. Specifically, the 133-3801-211 connectors are a type of highly reliable coaxial connector with 50 ohm impedance. It also has the added benefit of being water and dust proof.

Application Field

The 133-3801-211 connectors offer a variety of different applications. Firstly, as they have a 50 ohm impedance they are particularly suitable for use in radio and antenna systems as they offer extremely high-fidelity transmission. The robustness, waterproofing, and dust-proofing features also make them perfect for use in the aerospace and automotive sectors. In addition, they are also often used in medical and military communications systems.

Working Principle

The connector consists of two separate parts: the inner conductor and the outer conductor. The 133-3801-211 connector has a inner conductor with a slot hole which allows insertion of a mating pin. The pin presses against a brass spring that contacts the center conductor and provides an electrical connection. The outer conductor is a protective shield that provides electromagnetic interference (EMI) protection and also carries a voltage at a very low current. This allows the parts to conduct electricity without creating any interference in the connected signal.

The interface between the two conductors is an air gap. This maintains a dielectric insulation which ensures a constant impedance over the frequency range of the connector. Furthermore, the air gap plus the pin contact provides a low-resistance path for the signal, which improves the performance of the connected system.

In addition, the 133-3801-211 connector also utilizes a clamp at the housing to provide an additional mechanical connection. This provides an extra level of protection in difficult environments and reduces the possibility of the connector becoming disconnected due to vibration or shock.

Conclusion

In conclusion, the 133-3801-211 connector is a highly reliable coaxial connector with 50 ohm impedance and water and dustproof features. With its ability to provide an efficient connection for radio and antenna systems, as well as aerospace, automotive, medical and military communications, these connectors are becoming increasingly popular. Furthermore, the use of an air gap dielectric insulation, plus a mechanical connection provides a whole host of additional benefits.

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