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Is an SMA torque wrench equivalent to a 3.5 mm torque wrench?

No, an SMA torque wrench is not structurally identical to a 3.5 mm torque wrench. They have similar shape but different coupling torque.

  • For 3.5 mm connectors, use 8710-1765
    Width across coupling nut wrench flats: 5/16"
    Coupling torque: 90 N-cm (8 in-lbs)
  • For SMA connectors, use 8710-1582
    Width across coupling nut wrench flats: 5/16"
    Coupling torque: 56 N-cm (5 in-lbs)

To properly interconnect an SMA male to a 3.5 mm female connector, use an SMA torque wrench. To connect a 3.5 mm male connector to a SMA female connector, use a 3.5 mm torque wrench.

Note that 8710-1765 torque wrench is for standard 3.5 mm connectors. This is not the same torque wrench for use on the network analyzer test ports equipped with the 3.5 mm NMD style connectors.

For more information about 3.5 mm cables and adapters, please visit Cables for Network Analyzers with 3.5 mm Test Ports.

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