Amphenol M39029/47-316
Product Overview
Amphenol Aerospace's JT/LJT Series connectors are subminiature cylindrical connectors qualified to MIL-DTL-38999, Series I and II respectively. Developed for the aerospace industry, these connectors meet or exceed MIL-DTL-38999 requirements. They feature a lightweight, space-saving design with 5-key/keyway polarization and a 3-point bayonet lock coupling for positive and error-proof mating. The LJT design offers 100% scoop-proof contact protection, preventing bent pins and short circuits. These connectors are available in nine shell sizes and a variety of shell styles, with options for EMI shielding, hermetic sealing, and high-temperature capabilities.
Product Attributes
- Brand: Amphenol Aerospace
- Series: JT/LJT
- Qualification: MIL-DTL-38999, Series I (LJT) and Series II (JT)
- RoHS Compliant: Available (Consult Amphenol Aerospace Operations)
Technical Specifications
| Feature | Details |
|---|---|
| Shell Components Material | Impact extruded or machined bar stock aluminum |
| Standard Shell Plating | Cadmium over nickel |
| Optional Shell Finishes | Available (See "Specifications" page 19) |
| Hermetic Seal Receptacle Shell Material | Carbon steel or stainless steel |
| Polarization | 5 key/keyway |
| Coupling | Bayonet lock |
| Insert Material | Rigid dielectric |
| Interfacial Seal Wafer (Crimp Pin Inserts) | Fluorinated silicone |
| Main Joint Gasket | For moisture sealing between connector halves |
| Number of Circuits | Minimum 2 to maximum 128 per connector |
| Contact Sizes | 8, 10, 12, 16, 20, 22, 22D, 22M |
| Standard Contact Plating | 50 micro inch minimum gold plating (100 micro inches optional) |
| Socket Contact Feature | Probe proof |
| Contact Termination Options | Crimp (rear removable), Solder, PCB, Wire wrap, Thermocouple, Fiber optic, Coaxial, Triaxial, Twinax |
| Standard Temperature Capability (Solder & Crimp) | 302F (150C) |
| High Temperature Capability (JTS/LJTS crimp type only) | 392F (200C) |
| N2O4 Resistance (JTN/LJTN type) | Available when mated and rear faces suitably protected |
| EMI Shielding | Grounding fingers standard in LJT Series; optional in JT Series |
| Hermetic Seal Leakage Rate (Optional) | Less than 1 x 10-7 cm/sec |
| Commonality | Uses standard MIL-DTL-38999 contacts, insert arrangements, and application tools |
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