What are the Advantages of the 4.3/10 Connector Interface?

DIN 7/16, N-type, 4.3/10, and 4.1/9.5 are all coaxial cable standard types used in wireless infrastructure and mobile wireless equipment. Each are different in size, power handling, frequency, and other electrical and mechanical specifications. Specifically, 4.3/10 and 4.1/9.5  are more compact versions of DIN 7/16, optimally designed for use in dense interconnect scenarios, such as distributed-antenna systems (DAS) for connections between the base station and remote radio units (RRUs). Both 4.3/10 and 4.1/9.5 are more compact and present much better torque specifications and passive intermodulation (PIM) distortion metrics compared to N-type connectors, which make them better suited for reliable installation for wireless infrastructure and to account for the increased PIM requirements of the modern crowded spectrum and congested tower sites.

4.1/9.5 precedes 4.3/10, and the connector standards are, in many ways, similar. However, 4.3/10 connector standards are designed to more completely address modern application requirements by its low PIM under various torque conditions allowing enhanced reliability and hand-tightening, and 4.3/10 has separate mechanical and electrical planes, providing enhanced PIM performance. Hence, 4.3/10 is continually likely to increase in adoption over 4.1/9.5.