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Amphenol JT MIL-DTL-38999 Connector Series II
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Amphenol JT MIL-DTL-38999 Connector Series II
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LIGHT-WEIGHT, LOW-PROFILE, SPACE-SAVING DESIGN

The Amphenol MIL-DTL-38999 series II JT connector offers high-density contact arrangements and shell types in a small size. They were designed for high-performance requirements, including military and commercial aviation applications that require a very low profile. The Amphenol MIL-DTL-38999 series II JT connector is environmentally-sealed and have a wide operating temperature range to meet the demand of harsh environments/conditions.
The Amphenol JT series connector is intermateable with Souriau and all MIL-DTL-38999 series connectors, and were formerly called MIL-C-38999. A broad range of military and commercial accessories are also available. See our full list of Amphenol JT connector MIL-DTL-38999 series II features in the specifications below.

Get shopping! Mil spec part number prefixes include MS27472, MS27473, MS27474, MS27484, MS27497, MS27499, MS27500, MS27508 and MS27513.

 

 

FEATURES

  • High-Reliability
    MIL-DTL-38999 series II - JT style connectors are used in performance aircraft that demand reliable connections in some of the most rigorous environments. The connectors must perform flawlessly under wide temperature ranges, high vibrations, and be resistant to a vast array of contaminants.
  • Low-Profile Connector Design
    JT's require a fraction of the space needed to mate most other high-performance connectors, permitting use in areas that would be impossible for other mating systems.
  • Light-Weight
    Today's aircraft designs require connectors that are very light-weight. Saving weight on the connector systems allows the aircraft to carry more fuel, maximizing its range or payload-carrying capacity.
  • High-Density Connectors
    JT connectors offer up to 128 contacts per connector. Ideally-suited for the demands of today's digital electronics that are used on fly-by wire aircraft, advanced robotics, and critical industrial equipment.
  • Operates at Extreme Temperatures
    These connectors will operate in temperatures from -85°F to +392°F (-65°C to +200°C)
  • Quick-Mating Coupling Systems
    Three-point bayonet coupling nuts provide fast, one-third-turn connector mating. Mating is easily verified with an audible and tactile "click" and a bayonet pin sighting hole located in the coupling nut.
  • Broad Range of Military and Commercial Accessories
    Many military-standard endbells to MIL-C-85049 specifications and a wide array of cable termination styles are available. Straight, 45- and 90-degree endbells come in many styles from low-cost, standard clamp to shielded, environmentally-sealed.
  • MIL-DTL-38999 Approved
    JT's are fully-intermatable and intermountable with all other MIL-DTL-38999 series II connectors.

 

 

Materials & Finishes

Shell
Aluminum alloy or Stainless Steel
 
Plating
A - Clear chromate over cadmium over electroless nickel per QQ-P-416
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
 
Contacts
Copper alloy
 
Plating
Gold-plated, 50 microinches per MIL-G-45204 type II, grade C, class 1
 
Insulator
Hard dielectric wafer that contains metal retention tines for high-reliability retention of crimp contacts
 
Grommet & Seals
Silicone-based elastomer
 
Grounding Springs
Beryllium copper (Grounded plug only)

 

 

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 designs

 

 

Mechanical

Operating Temperature
A - Plating -65°C to 150°C (-85°F to 302°F)
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)
 
Sealing
Against sand, dust, per MIL-STD-202 & ice resistance

 

Wire Sealing Range

 

Insulation Strip Length

All dimensions in inches (millimeters in parenthesis)

 

Mating Life
500 cycles minimum: 250 for plug with grounding fingers (JTG06)
 
Salt Spray
Finish A: 48-hour per MIL-STD-1344A method 1001 condition B
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
 
Heat
Finish A: 150°C (302°F)
Finish B: 175°C (347°F)
Finish F: 200°C (392°F) 1000 hours to MIL-STD-1344 method 1005
Finish C: 200°C (392°F)
Finish W52: 175°C (347°F)
 
Chemical Resistance
Lubricating oils, hydraulic fluids, coolants, deicing fluids per MIL-STD-1344A Method 1016 condition A-1
 
Sine Vibration
Not applicable
 
Random Vibration
43.7 grms at ambient temperatures
 
Shock
300g±15% for 3±1 milliseconds per MIL-DTL-38999L 4.7.23
 
EMI-Shielding Effectiveness
100 MHz to 10 GHz - minimum attenuation of 45 dB
 
Contact Type
Crimp, fiber optic, co-ax, twinax, thermocouple or printed circuit
 
Number of Circuits
2 to 128
 
Contact Insertion
Rear insertion/rear extraction with simple plastic or high-quality metal hand-tools.
 
Contact Retention
Per MIL-C-38999L tested to MIL-STD-1344A method 2007

 

* Inactive for new designs

Polarization
Three-point bayonet coupling, five keyways with optional master keyway rotations, note insert and four fixed minor keyways.
 
Approvals
MIL-DTL-38999L

 

 

 

 

Cross-Section

 

 

AMPHENOL JT SERIES EXCERPT FROM MIL-DTL-38999K

 

3.43.2 JAN brand. The United States Government has adopted, and is exercising legitimate control over the certification marks “JAN” and “J”, respectively, to indicate that items so marked or identified are manufactured to, and meet all the requirements of military specification. Accordingly, items acquired to, and meeting all of the criteria specified herein and in applicable specifications shall bear the certification mark “JAN” except that items too small to bear the certification mark “JAN” shall bear the letter “J”. The “JAN” or “J” shall be placed immediately before the PIN except that if such location would place a hardship on the manufacturer in connection with such marking, the “JAN” or “J” may be located on the first line above or below the PIN. Items furnished under contracts or orders which either permit or require deviation from the conditions or requirements specified herein or in applicable specifications shall not bear “JAN” or “J”. In the event an item fails to meet the requirements of this specification and the applicable specification sheets or associated detail specifications, the manufacturer shall remove the “JAN” or the “J” from the sample tested and also from all items represented by the sample. The “JAN” or “J” certification mark shall not be used on products acquired to contractor drawings or specification. The United States Government has obtained Certificate of Registration No. 504,860 for the certification mark “JAN”.

Note: The “JAN” or “J” is not part of the PIN but indicates a certification.

PIN = Part Identification Number

 

 

암페놀
Interconnect Product Manufacturer, Electrical, Electronic, Fiber Optic Connectors, Coaxial Cable and more
세계적로 사람들을 기술과 연결하는 비전 암페놀(Amphenol)은 세계에서 가장 큰 인터커넥트 제품 제조업체 중 하나입니다. 이 회사는 전기, 전자 및 광섬유 커넥터, 동축 및 평평한 리본 케이블, 그리고 인터커넥트 시스템을 디자인, 제조 및 마케팅합니다. 회사의 제품 주요 사용 분야는 케이블 텔레비전, 휴대전화 및 데이터 통신 및 정보 처리 시스템을 포함한 통신 및 정보 처리 시장, 항공우주 및 군용 전자 제품, 그리고 자동차, 철도 및 기타 교통 및 산업용 애플리케이션입니다.
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