AMPHENOL
AMPHENOL
Amphenol LJT Miniature Connectors (MIL-DTL-38999 Series I)
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Connectors
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Description
100% SCOOP-PROOF DESIGN WITH QUICK, POSITIVE BAYONET COUPLING
Amphenol LJT MIL-DTL-38999 series I miniature connectors offer high-density contact arrangements, EMI shielding, error proof alternate positioning, and are suitable for extremely high-reliability connections, including use in military and commercial aviation/aerospace industries.
They are environmentally-sealed, have a wide operating temperature range and meet the requirements of HE308. Amphenol LJT series connectors are intermateable with Souriau and all MIL-DTL-38999 series I connectors and were formerly called MIL-C-38999. For full details on our Amphenol LJT series connectors, please see the specifications below.
Get shopping! Mil spec part number prefixes include MS27466, MS27467, MS27468, MS27496, MS27505 and MS27656. HE prefix is HE308.
Features
- Quick-Mating
A three-point bayonet coupling system makes the LJTs quick-mating and provides an audible and tactile "click," along with visual verification of mated connectors via a sighting hole and high-visibility, bright blue bayonet pins. - Shielded Interconnect
LJT plugs feature high-quality grounding springs that provide 360-degrees of EMI/RFI shielding protection. These springs ground the barrel of the LJT plugs to the inside wall of the LJT receptacles with a wiping action that offers effective protection from reception or transmission of electronic noise. - Many Contact Layouts and Styles
LJT connectors come in a wide variety of contact sizes and layouts, up to 128 contacts. Printed circuit board, fibre optic, thermocouple, and co-ax style contacts are available for special applications. - Utilizes High-Quality Military Contacts
For standard applications, LJT's come with crimp-style military contacts design to resist bending and provide reliable performance under the most rigorous conditions. - Corrosion-Resistant
LJT's are available with cadmium over nickel plating that has met and passed the 500-hour military salt spray corrosion tests.
Materials & Finishes
B - Olive drab chromate over cadmium over electroless nickel per QQ-P-416
F - Electroless nickel per QQ-N-290
C - Hard, anodic, non-conductive in accordance with MIL-A-862
W52 - Olive drab zinc cobalt
Electrical Data
Test Voltage (Unmated Condition)
Operating Voltage
Current Rating by Contact Size & Wire Accommodation (Test Amps)
Contact resistance of Mated Contacts End-to-End
Insulation Resistance 5,000 megohms minimum
*Inactive for new design
Mechanical
B - Plating -65°C to 175°C (-85°F to 347°F)
F - Plating -65°C to 200°C (-85°F to 392°F)
C - Anodic (non-conductive) -65°C to 200°C (-85°F to 392°F)
W52 - Plating -65°C to 150°C (-85°F to 302°F)
Wire Sealing Range
*Inactive for new designs
AMPHENOL LJT SERIES INSULATION STRIP LENGTH
All dimensions in inches (millimeters in parentheses)
Finish B: 500-hour per MIL-STD 1344A method 1001 condition C
Finish F: 48-hour per MIL-STD-1344A method 1001 condition B
Finish C: 500-hour per MIL-STD 1344A method 1001 condition C
Finish W52: 48-hour
Finish B: 175°C (347°F)
Finish F: 200°C (392°F) 1000-hour to MIL-STD-1344 method 1005
Finish C: 200°C (392°F)
Finish W52: 175°C (347°F)
* Inactive for new designs
Cross-Section
