D38999/26JE26SN Amphenol 26-Position Composite Connector
Mfr. Part #: D38999/26JE26SN
Manufacturer: Amphenol
Series: Tri-Start™ TV / MIL-DTL-38999 Series III
Package/Case: Shell Size 17, 26-Position Composite Circular Plug
Description: 26-position MIL-DTL-38999 Series III straight plug with female crimp contacts, lightweight composite shell, olive-drab cadmium finish and normal key orientation.
The D38999/26JE26SN from Amphenol Aerospace is a 26-position straight circular plug qualified to MIL-DTL-38999 Series III. Unlike conventional aluminum-shell versions, it uses a lightweight composite shell with an olive-drab cadmium finish. The connector contains 26 gold-plated female crimp contacts and is designed for aerospace, military, marine and other systems where weight reduction, environmental resistance and secure threaded coupling are required.
Specifications
| Parameter | Specification |
|---|---|
| Connector type | Straight circular plug |
| Contact gender | Female sockets |
| Number of positions | 26 |
| Contact arrangement | 26 × Size 20 contacts |
| Shell size / insert arrangement | 17-26 |
| MIL shell size | E |
| Termination | Crimp |
| Mounting type | Free-hanging / cable mount |
| Coupling mechanism | Tri-start threaded |
| Shell material | Composite |
| Shell finish | Olive-drab cadmium |
| Housing color | Olive drab |
| Contact material | Copper alloy |
| Contact finish | Gold |
| Contact finish thickness | 50µin / 1.27µm |
| Typical contact rating | Up to 7.5A per Size 20 contact |
| Key orientation | N, normal |
| Shielding | Shielded |
| Environmental protection | Environment-resistant |
| Operating temperature | −65°C to +175°C |
| Qualification | MIL-DTL-38999 Series III |
| Applications | Aerospace, aviation, marine and military |
| Part status | Active |
Features and Applications
The D38999/26JE26SN combines 26 Size 20 socket contacts with a self-locking tri-start threaded coupling. Its relatively dense signal layout supports multi-channel control, sensor and communication wiring through a single rugged connector.
Typical applications include:
Aircraft avionics systems
Flight-control equipment
Unmanned aerial vehicles
Radar and electronic warfare systems
Military communication equipment
Navigation and sensor interfaces
Marine and shipboard electronics
Ruggedized data-acquisition systems
Composite vs Aluminum Version
| Feature | D38999/26JE26SN | D38999/26FE26SN |
|---|---|---|
| Shell material | Composite | Aluminum |
| Finish | Olive-drab cadmium | Electroless nickel |
| Contact configuration | 26 female sockets | 26 female sockets |
| Insert arrangement | 17-26 | 17-26 |
| Key orientation | Normal | Normal |
| Main advantage | Lower weight and corrosion resistance | Conductive metal shell and higher temperature rating |
| Maximum listed temperature | +175°C | +200°C |
Standard Version vs LC Version
D38999/26JE26SN: Complete connector configuration with socket contacts, subject to supplier packaging.
D38999/26JE26SN-LC: Connector housing supplied without contacts.
If contacts, backshells or installation tools are required, include them as separate line items in the RFQ.
D38999/26JE26SN FAQ
Is D38999/26JE26SN a plug or receptacle?
It is a straight, free-hanging plug intended for cable mounting.
Does it use pin or socket contacts?
It uses 26 female socket contacts. The letter S identifies the socket-contact configuration.
Is the shell aluminum?
No. This model uses a lightweight composite shell with an olive-drab cadmium finish.
What mates with D38999/26JE26SN?
A mating receptacle must use the 17-26 arrangement, male pin contacts and normal orientation. D38999/20JE26PN is a corresponding wall-mount configuration.
Can it replace D38999/26FE26SN?
The contact layout and orientation are similar, but the shell material, finish, environmental performance and temperature rating differ. Substitution requires engineering approval.
Are contacts included with the LC version?
No. The D38999/26JE26SN-LC connector housing is supplied without contacts.
Availability, Price and RFQ
DataStorageIC supplies Amphenol Aerospace composite and metal-shell circular connectors for prototype, maintenance and production requirements. Contact us for current information on D38999/26JE26SN stock, price, lead time, date code and supporting documentation.
