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M28876 Cable Assemblies

STRAN Technologies offers cylindrical multi-pin and socket fiber optic connectors manufactured and qualified to the design and interface requirements referenced in the MIL-PRF-28876E specification. This series of connectors provide multi-channel interconnects for 2, 4, 6, 8, 18 and 31 contacts (termini) in a single circular shell. Available in straight, 45 and 90 degree versions, and in various materials and finishes which include Cadmium/Nickel over Al, Hard-coat anodized over Al, and 303 or 316 stainless steel. The M28876 connectors offer the customer a very reliable, rugged interconnect product that is designed to provide low loss over 20+ years of life in harsh environments. Various configurations allow this series to accommodate many variables based upon the customers needs.

 

Features / Options

  •   Corrosion resistant
  •   Environmental and moisture sealed
  •   Field maintainability
  •   High Impact Shock and thermally resistant
  •   Low loss (<0.5db typically)
  •   Sealed floating termini design Variety of backshells: Straight, 45 and 90 degree versions
  •   Single mode/multi mode operation

 

Connectors:

  • 28876 Plug/Plug
  • 28876 Jam Nut Receptacle to ST
  • 28876Flange Mount Receptacle to ST
  • 28876Plug/ Flange Mount SN Receptacle
  • 28876Plug/ Jam Nut Receptacle

 

Channel Count (number of fibers):

  • 4, 6, 8, 18, 31 Channels

 

Plating Options:

  • Black Anodize
  • Cadmium Olive Drab
  • Electroless Nickel
  • Hard Anodize Steel Gray
  • Passivate
  • No Plating

 

Connector Materials:

  • 303 Stainless Steel
  • 316 Stainless Steel
  • Plastic
  • Available in cadmium nickel over aluminum, hard coat anodized

 

Strain Relief Options:

  • Nylon Flex/ Dome
  • Ni plated brass Flex/ Dome
  • Stainless Kellems
  • Rubber Boot
  • Rubber Boot/ Nylon Dome
  • None

 

Cable and Fiber Type:

  • Tactical
  • Armored
  • Breakout
  • Distribution
  • Hybrid
  • Special
  • 62.5/125 Multimode Fiber (MM-62.5μm)
  • 50/125  Multimode Fiber (MM-50μm)
  • 9/125 Singlemode Fiber (SM-9μm)
  • Length:  24” to 1 Mile (0.6m to 1.6km)

 

Special Instructions:

  • Spool onto: Reel, Backpack, Loose Coil
  • Pinout: Straight, Crossover, Special

 

Specifications:

 

Title Description
Optical Loss 9/125: 0.75 dBmax, 0.35 dBtyp62.5/125: 0.75 dBmax, 0.14 dBtyp
Return Loss >30 dB MMF, >40 dB SMF with PC polish
Mating Durability 500 cycles per EIA-455-21
Vibration Per EIA/TIA-455-11
Thermal Shock 40°C to +70°C per EIA-455-71
Cable Pull-Out Force >162 lbs per MIL-PRF-28876, para 3.11.4
Shock Per MIL-S-901D
Humidity Per EIA-455-5, Type 2
Fluid Immersion Per EIA-455-12A
Crush Resistance 218 lbs per MIL-PRF-28876E, para 4.6.5.7
External Bend Moment 300 in-lb per MIL-PRF-28876, para 4.6.5.2
Cable Seal Flexing Per MIL-STD-1344, Method 2017
Impact Per EIA-455-2
Temperature Cycling Per TIA/EIA-455-3
Life Aging Per MIL-PRF-28876E FOTP-4
Water Pressure Per MIL-PRF-28876E, para 4.6.6.15
 
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