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Pasternack Blog7/16 DIN Connectors, or DIN 7/16 connectors, are one of the most common coaxial connector types used for interconnect between cellular networking systems and cellular antennas. 7/16 DIN connectors are 50 Ohm connectors with relatively high-power handling and exceptional passive intermodulation distortion performance. The high-power handling capability of this connector type compared to N connectors or BNC connectors is due to the relatively wide 7 mm diameter inner conductor contact and 16 mm diameter out contact, hence 7/16. The external thread for the 7/16 DIN coaxial connector is 29 mm with a 1.4 mm pitch.
7/16 DIN Connector Variations
Given the widespread use of 7/16 DIN adapters, there are a range of variations available. Many of these variations are designed to accommodate different coaxial cable types, such as RG58, RG55, RG141, RG142, RG223, RG400, RG8, RG9, RG225, RG393, RG215, ⅞” helical, ⅞” annular, and many others. Other variations include the contact attachment method, mainly being either crimp non-solder, clamp, solder, field replacement, or crimp/solder.
Key 7/16 DIN Coaxial Connector Electric Specifications & Performance Parameters
- Connector Type [7/16 DIN]
- Connector Angle (straight or right angle)
- Impedance [Ohms]
- Frequency Range [Hz, typically 3 GHz]
- Coaxial cable compatibility (various RG types)
- Dielectric Type [often PTFE]
- Contact Attachment Type (crimp, clamp, solder, field replacement, or crimp/solder)
- Connector Body Conductor Type (typically brass with plating)
Female coaxial adapters are most often used as the interface ports for devices and systems. Hence, 7/16 DIN female coaxial connectors are often available in 4-hole flange, bulkhead, 4-hole panel, and other mounting options. 7/16 DIN female coaxial connectors are also usually only available in a straight connector style. However, 7/16 DIN male coaxial connectors are typically available in a right-angle style to account for minimal clearance interconnect applications.
7/16 DIN coaxial connectors are most used in busy RF sites and installations where multiple transmitters are connected to the same antenna. Another common application for these coaxial connectors is where a base station antenna and other transmitting antennas are co-located and co-site interference and/or intermodulation distortion could dramatically reduce the performance of the co-located systems. It is important to note that to yield the low PIM performance of 7/16 DIN connectors, low PIM coaxial cable must also be employed.
