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MIL-DTL-38999 Series II - JT Connectors
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Description:
Amphenol MIL-DTL-38999 Series II JT circular connectors are industry-standard lightweight, low-profile connectors for harsh-environment applications where space and weight come at a premium. These MIL-SPEC connectors feature up to 128 contacts in high-density insert arrangements with a three-point bayonet coupling system for fast and secure mating. Series II connectors are available in aluminum or stainless steel with multiple finish options.
D38999 Series II connectors were developed in accordance with the MIL-C-38999 specification, which was later superseded by MIL-DTL-38999. These connectors were born out of a desire in the 1960s to develop a ruggedized, high-density interconnect solution for military applications, particularly for the harsh environments of military aerospace. Optional backshells are available to provide strain relief in high-vibration environments.
Features & Benefits:
- Lightweight, Space Saving Design
- Quick Positive Coupling - 3 point bayonet lock system
- Mismating Eliminated - with 5 key/keyway design
- Error Proof Alternate Positioning - insured by different key/ keyway locations
- EMI Shielding - grounding fingers optional
- Nine Shell Sizes and a Variety of Shell Styles
- Contact Options - size 8, 10, 12, 16, 20, 22M and 22D Crimp, Solder, PCB, Wire wrap, Coax, Twinax, Triax, Thermocouple, Fiber Optic and Filter
- Fixed Solder Contacts - available in solder versions as both Commercial and Military qualified to MIL-DTL-27599
- Inventory Support Commonality - uses standard MIL-DTL-38999 contacts, insert arrangements and application tools.
- RoHS Compliant Product Available - Consult Amphenol Aerospace Operations.
- Supports up to 128 contacts per connector in high-density configurations.
- Operating temperature range rated from −65 °C to +175 °C (347 °F).
- Environmental sealing for protection against sand, dust, moisture, and fluids in harsh-environment applications.
- Finish-dependent salt spray resistance up to 500 hours.
- Scoop-proof shell design with recessed contacts to prevent damage during mating.
Connector Options
How to Order
Standard Dimensions
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PCB Connector Dimensions & Order Guide
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Insert Chart
Insert Arrangements
PCB Layouts
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
*All dimensions for reference only. For availability of other arrangements, consult Amphenol Aerospace.
Contact Information
Service Ratings/Finishing Data
38999 Application Tools
38999 Assembly Instructions
Backshells and Caps
Backshells provide strain relief, environmental protection, and EMI/RFI shielding at the termination area of virtually any connector.
Mil-Spec Contacts
A complete line of AS39029 contacts for all major Mil-Spec circular connectors.