AERO AE55-339-E22F35SD
- Hermetic sealed design for extreme environmental protection
- MIL-SPEC compliant for aerospace and defense applications
- High-density contact configuration for space-constrained systems
- Radiation-hardened construction for satellite operations
- Operating temperature range: -55°C to +125°C
Aerospace and defense systems demand connectors that can perform reliably in the harshest environments, from the vibration of launch vehicles to the vacuum of deep space. The AERO AE55-339-E22F35SD is engineered specifically for these challenges, combining hermetic sealing technology with military-grade materials to ensure uninterrupted signal transmission in critical avionics and satellite systems. This connector meets the stringent requirements of MIL-SPEC standards, undergoing rigorous screening tests including temperature cycling, mechanical shock, and radiation exposure. Its compact, high-density design maximizes connectivity in limited space, making it ideal for modern satellite platforms and next-generation avionics architectures.
Related Products For Your Business
The AERO AE55-339-E22F35SD is a Shell Size E, MIL-DTL-38999 Series III straight plug (D38999/26 equivalent) with insert arrangement 22F-35 supporting 55 size #20 crimp socket contacts in polarizing position D. Class W construction — aluminum alloy with olive drab cadmium over electroless nickel — delivers 500-hour salt spray resistance within an operating range of −65°C to +175°C, meeting the corrosion and thermal requirements of the most demanding airborne and shipboard deployments. The triple-start acme-thread self-locking coupling mates in one 360° turn without lockwiring, a significant assembly time advantage in high-contact-count avionics harness builds.
For comparison with related MIL-DTL-38999 Series III connectors in our inventory:
| Product | Shell Size | Contacts | Contact Type | Class | Temp Range |
|---|---|---|---|---|---|
| AE55-339-E22F35SD | E | 55 | Socket | W (Al/OD Cad) | −65°C to +175°C |
| MS27484T14F35SA | 14 | Varies | Socket | Varies | −65°C to +200°C |
| MS27499E14F35PB | 14 | Varies | Pin | E (Al/Cad) | −65°C to +200°C |
Military-Grade Reliability & Performance
Qualified under Aero-Electric’s ISO 9001:2015 and AS9100:2016 certified manufacturing program, the AE55-339-E22F35SD is built to the full performance matrix of MIL-DTL-38999 Series III. Metal-to-metal bottoming of mated shell pairs eliminates micro-motion fretting corrosion and moisture ingress in vibration-rich environments. The scoop-proof elongated shell with recessed socket insert prevents contact damage during imprecise or blind mating, critical in confined avionics bays and satellite integration facilities. Fluid resistance testing covers aviation turbine oils, hydraulic fluids, and aviation fuels including JP-4, JP-5, and JP-8, ensuring connector integrity across all substances encountered in operational aerospace environments.
Supply Chain & Quality Assurance
The AE55-339-E22F35SD is manufactured by Aero-Electric Connector, Inc. (Conesys), a QPL-qualified, AS9100:2016-certified (DQS Reg. No. 10015570) vertically integrated connector manufacturer. Full interoperability with D38999/26 equivalents from Amphenol Aerospace, TE Connectivity, Glenair, ITT Cannon, and Souriau enables cross-sourcing flexibility for defense program supply chain continuity. Every shipment includes certificates of conformance, lot traveler records, and incoming inspection reports. All parts undergo visual inspection, dimensional verification, and continuity testing prior to release.
Selection Guide & Application Notes
The AE55-339-E22F35SD is the Class W, Shell Size E, insert 22F-35, position D socket variant of the Aero-Electric Series III plug family. For temperatures beyond +175°C, Class F (electroless nickel, +200°C) or Class K/S (stainless steel firewall, +200°C) variants should be specified. Mating receptacles must match shell size E, insert 35, and polarizing position D — compatible types include D38999/20WE35SD (wall mount) and D38999/24WE35SD (jam nut). A SAE-AS85049 metric-threaded backshell is required; RFI backshells with 360° cable shield clamp are recommended for avionics and EW applications.
FAQ
What does each code in AE55-339-E22F35SD mean?
AE55 = Aero-Electric COTS prefix for D38999/26 Series III straight plug; 339 = Aero-Electric catalog suffix (Class W, OD cadmium); E = Shell Size E; 22F = insert sub-arrangement; 35 = 55-contact insert; S = crimp socket; D = polarizing position D.
How many contacts does this connector support?
55 size #20 crimp socket contacts per insert arrangement 22F-35, rated for 500 mating cycles with gold-over-nickel finish per SAE-AS39029, compatible with AWG 20–24 wire.
Which receptacles mate with the AE55-339-E22F35SD?
Any MIL-DTL-38999 Series III receptacle in Shell Size E, insert 35, polarizing position D — including D38999/20WE35PD (wall mount) and D38999/24WE35PD (jam nut) — from any QPL-qualified manufacturer.
What is the difference between Class W and Class F?
Class W (OD cadmium, +175°C max, 500-hr salt spray) suits most airborne and corrosive environments. Class F (electroless nickel, +200°C max, 48-hr salt spray) suits high-temperature applications with controlled moisture exposure.
Does Series III require lockwiring?
No. The self-locking triple-start acme thread couples in one 360° turn and locks without lockwiring, reducing assembly time and eliminating handling damage risks in densely populated harness bays.
What backshell is required?
A SAE-AS85049 metric-threaded backshell is mandatory. RFI backshells with 360° cable shield clamp are recommended for avionics and EW platforms to maintain the connector’s full EMI shielding rating through the cable exit zone.
