ENVIRONMENTAL SEALING passed all MIL-DTL-38999 Series III vibration tests including sine and random vibration testing at 200°C. The anti-decoupling mechanism, engineered around a special 7075 Aluminum alloy shell, delivers excellent ductility, strength, and proven performance in highly- stressed structural applications such as the knurled ratchet mechanism on the Series 806. High-durability performance in the anti-decoupling mechanism is further ensured with the use of a stainless-steel ratchet spring. We mentioned earlier that the shallower ramps on the triple-start thread mating interface, combined with an extremely robust self-locking coupling nut, results in a connector series that excels in vibration testing. In fact, Series 806 Mil-Aero is the only high-density micro miniature connector of its kind that has successfully “Triple ripple”wire grommet seal
SERIES 806 VIBRATION
TEST
REQUIREMENT
MIL-DTL-38999M SPEC Para. 4.5.23.2.3 with Figure 24 accessory load EIA-364-28 +200°C
Random vibration, elevated temp., 43g rms Random vibration, ambient temp., 49g rms Sine vibration, 60g
No discontinuities of 1 ms or longer. No resonance at frequencies less than 300 Hz
No discontinuities of 1 microsecond or longer
Para. 4.5.23.2.4 EIA-364-28 Test Condition V
No discontinuities of 1 microsecond or longer
Para. 4.5.23.2.1 with Figure 24 accessory load. 12 hours in each of 3 axes. 4 hours at ambient, 4 hours at -55° C, 4 hours at +200° C
SST ratchet spring for reliable anti-decoupling performance
Turning to environmental performance, the Series 806 Mil- Aero utilizes a “triple ripple”wire grommet seal, cork-and- bottle interfacial seal, and internal O-ring peripheral seal to ensure robust environmental sealing, even during 75,000 ft. altitude immersion testing. Ensuring high-altitude voltage ratings is a critical concern for microminiature circulars, given the minimal center-to-center distance between contacts. Nevertheless, it was considered critical for this connector to meet the same sea level and 70,000 ft. unpressurized zone DWV benchmarks as the MIL- DTL-38999 for both size #22HD and #20HD contacts utilized in high-density Series 806 insert arrangements.Glenair engineers were able to achieve this higher voltage rating through the use of an innovative Top Hat insulator, which lengthens the discharge creep path in shorting and flashover testing. This unique capability and design is only available in the Series 806 Mil-Aero—the only micro miniature circular with proven real-world performance meeting this 70,000 ft. DWV rating.
Cork-and-bottle interfacial seal
HIGH- ALTITUDE DWV
“Top Hat” insulator lengthens creep path
Maximize Contact Density with Series 806 The promise of the Series 806 Mil-Aero is not only that it meets or exceeds MIL-DTL-38999 performance— and that it does so in a significantly smaller size and weight package—but that it enables much higher contact density compared to standard subminiature connectors. This figure compares a D38999 Series III size 9 (lower left) with a Series 806 size 11 (upper right). Although relatively similar in size, the Series 806 size 11 can carry over three times the number of size #22HD contacts. Even when the 38999 is equipped with ultra-small size 23 contacts, the 806 can still carry more than double that number of larger size #22s, with better electrical performance and larger gauge wire support.
Series 806 Mil-Aero Size 11 19 #22HD contacts
MIL-DTL-38999 Size 9 6 #22 contacts or 9 #23 contacts
QwikConnect • January 2022
6
Powered by FlippingBook