SMA M LMR 400 CRIMP

• Preparation:
  – Strip the Cable: Carefully strip the LMR-400 cable to expose the central conductor and the shield. Follow these steps:
  – Remove the Outer Jacket: Strip away the outer jacket of the cable to expose the braided shield and dielectric insulation.
  – Expose the Shield: Remove the braided shield (or foil) while being careful not to damage it.
  – Strip the Dielectric: Strip the dielectric insulation to expose the central conductor. Follow the manufacturer’s specifications for strip lengths to ensure a proper fit.

– Prepare the Connector: Ensure the SMA male connector is clean and ready. It typically includes a central pin and a crimp ring or ferrule for the shield.

• Crimping Steps:
  – Insert the Central Conductor:
  – Insert the stripped end of the LMR-400 cable’s central conductor into the central pin of the SMA connector. Ensure it is fully inserted and aligned.
  – Crimp the Central Pin:
  – Use a crimping tool to compress the crimp ring around the central pin. This creates a strong electrical and mechanical connection between the central conductor and the pin.
  – Prepare the Shield:
  – Fold back the braided shield of the LMR-400 cable to make contact with the connector’s grounding element or body.
  – Crimp the Shield:
  – Slide the crimp ferrule (or ring) over the folded-back shield and use the crimping tool to compress it. This secures the shield to the connector’s grounding element, ensuring proper grounding and reducing signal loss.
• Final Steps:
  – Inspect the Connection: Verify that the crimped connections are secure. Check for proper alignment and ensure there are no loose parts or visible damage. The crimping should be uniform and properly applied.
  – Test the Connection: If possible, use RF testing equipment to confirm that the assembly performs correctly and meets the required specifications for signal integrity and performance.

Applications:

– SMA Male to LMR-400 Crimped Assemblies are used in RF and microwave applications where a robust and reliable connection is needed. The SMA connector provides a high-frequency connection, and the LMR-400 cable offers excellent performance for signal transmission.
– Crimping is used for its ease of assembly and reliability, making it suitable for field work or production environments where quick and consistent connections are required.