JCC jack connector — MIL-J-641 / MIL-P-642, 2 to 4 contacts, civil and military aeronautics
The JCC series covers audio communication jack connectors for civil and military aircraft, in service worldwide. Lightweight, compact, and compliant with MIL-J-641 and MIL-P-642 military standards, they connect onboard equipment, pilot accessories, and radio systems — with traction-based disconnection and 5,000-cycle endurance for sustained operational use.
A comprehensive jack connector range for airborne audio communication
The JCC series addresses the full range of audio connection needs on aircraft and helicopters: plug-to-receptacle, plug-to-extension, and panel-mount configurations, in 2, 3, and 4-contact versions. Plug diameters of 5.25 mm and 6.35 mm ensure compatibility with a wide range of onboard and portable radio equipment. The traction-based unlocking mechanism enables fast, one-hand disconnection without rotation or tools — a practical advantage in cockpit and crew environments.
Configurations
- Plugs — 2 contacts long (PJ-055B/R), 2 contacts short (PJ-054B/R), 3 contacts long (PJ-068B/R), 3 contacts short (PJ-051B/R)
- Receptacles — 9 variants for Ø 5.25 and Ø 6.35 plugs, open or with cable clamp / insulating ring configurations
- Extension — long extension 2 contacts Ø 6.35 (JJ-027)
- Caps — plastic cap (JC 90001), neoprene cap (JC 90002), insulating bush (JC 90020), insulating washer (JC 90022)
MECHANICAL AND CLIMATIC CHARACTERISTICS
| Unlocking system | Traction |
| Operating temperature | -55°C to +125°C |
| Nbr of mating-unmating cycles | 5000 operations |
| Sealing | IP68 connected and disconnected |
| Corrosion resistance (Salt spray) | Salt fog — 48 hours |
| Fluid resistance | Hydrocarbon and oils |
ELECTRICAL CHARACTERISTICS
| Nbr. of contacts | 2 | 3 | 4 |
| Types of contacts | Solder contacts | ||
| Working voltage | 30V max | ||
| Current rating per contact | 7.5A max per contact | ||
| Contact resistance | ≤ 50 mΩ at 25°C | ||
| Insulating resistance | ≥ 1,000 MΩ at 500VDC | ||
| Crosstalk | < 110 dB at 8 kHz | ||
| Dielectric strength | 500 Veff at 50 Hz — 1 min | ||
MATERIALS
| Connector shell | Brass silver plating for receptacle and thermoplastic for plug | ||
| Insert | Laminated epoxy and thermoplastic glass | ||
| Contacts | Silver copper alloy, silver plating |
- Last update:21/04/2026
APPLICATIONS
- Civil aeronautics: onboard audio systems, passenger and crew communication interfaces on aircraft and helicopters
- Military aeronautics: pilot and crew headset connections, cockpit radio interfaces
- Ground-to-aircraft communication: ground team and pilot intercom connections
- Portable radio accessories requiring MIL-standard jack connectivity
