Hermetic 38999 BMA RF Connector

Featured Product from Hermetic Solutions Group

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This latest product development combines Hermetic Solutions Group's industry-proven hermetic RF connector technology with industry-standard MIL-DTL 38999/23 Series III shell interfaces. The atmospheric side of the connector contains #8 BMA coaxial contacts per MIL-STD-348 while the hermetic side contains SMA contacts per the same MIL-STD.

These new high-performance BMA connectors are available in laser-weld or jam-nut configurations with 1, 2, 4, 6 or 8 contacts. Six key-way patterns and 11-80, 17-75, 21-48, 21-75, 23-06 and 25-08 shell sizes are also available. All formats provide RF performance of ≤1 db insertion loss at 18 GHz and have a hermetic leak rate of ≤1x10-9 cc He@1 ATM.

In laser-weld configuration, these connectors are compatible with materials that hermetically weld to 4032 or 4047 aluminum, 304L stainless steel or grade 2 titanium. The jam-nut versions mount with a stainless steel jam-nut and o-ring.

The shell and SMA barrel are made of 304L stainless while the feedthrough insert is Kovar. The BMA outer contract contacts are beryllium copper and the BMA center pins are Kovar sealed with 7070 glass. These connectors have an operating temperature range of -65° C to 200° C. Drawings and models for this new connector family are available here.