Casting Study: Connector for Radio AM/FM Signal

Major Selection Criteria: Assembly, Complex Shape, Dimensional Precision, Electrical Properties, EMI/RFI Shielding, Good Finish, Integration of Multiple Functions, Mechanical Properties
Alloy: Zamak 5 (ZL5, ZL0410, ZnAI4Cu1, alloy 5)
Application Field: Electrical/Electronics
Application Size: 5-25 g
Surface Finish: Plated
Casting Technique: Pressure Die Casting
Source: Siobra (France)

ima15The part has the following attributes:

  • Part functionality :  Allows one single part in zamak for electrical connection (interface) and mechanical (coding + retention)
  • Connector function: Allow the transmission of an RF AM FM signal
  • Reflow soldering assembly process: Allow a profile temperature up to 260°C

Zinc alloy was chosen for the following characteristics:

  • fluidity for casting, allowing complex form and thin wall to be obtained, and ensuring a high dimensional precision for a perfect assembly
  • ability to be coated; the part is plated with Cu8 Ni2 Sn4 in a satin finish
  • ability for crimping assembly
  • recyclability for electronics application
  • high capacity for high production quantities: 80,000 parts/month
  • competitive costs compared to other types of manufacturing

Packaging adapted to customer assembly process: product comes in a reel for robotized mounting on the electronic card.