glass to metal seal, TO package , Alloy 42 housing, 4 kovar leads, Au finishing.

  Base  Leads  Insulator 
Materials   4J42 4J29 BH-A/K
Plating  Ni:1.3~8.9μm, Au:≥0.3μm
Insulation resistance   ≥1× 1010Ω (500V DC)
Hermeticity   ≤  1 x 10-3  Pa * cm/s
Note Unspecified tolerances are ±0.2mm



With over two decades of experience helping clients move from prototype to commercialization, Hermetica’s customized engineering service offers immense value at the R&D stage. From material selection to pin configuration to sealing techniques, our team of engineers can provide a variety of solutions to help you overcome the technical obstacles our clients face in the early phases of designing a new product. We can work from your drawings or ours while pinpointing ways to lower costs and improve functionality.