Project Description

Optron Hybrid

Fiber Optic/Electric Connectors

Amphenol Fiber Systems International (AFSI) offers the Optron line of circular, hybrid (fiber optic/ electrical) connectors using proven M28876 technology. The high-precision engineered polymer insert provides optical performance superior to that of other hybrid connectors particularly in high channel count configurations.

Using widely available M29504/14 & /15 fiber optic termini, the Optron connector supports between 4 and 31 fiber optic and/or electrical contacts in any combination. For power applications, AFSI can provide inserts to support copper contacts up to size 10 AWG.

Optron connectors are available in a wide variety of materials including aluminum or stainless steel. Available finishes include black anodize, cadmium and electroless nickel. For applications requiring environmental sealing, AFSI offers a suite of backshells in straight, 45 and 90 degrees.

Features & Benefits

  • Multiple shell and insert sizes allows the flexibility to support up to 31 fiber optic and/or electrical contacts
  • Based on the M28876 connector series, these connectors provide the user with proven superior optical performance and proven field reliability
  • The Optron connector series is available in a wide variety of materials and finishes to support high temperature, high humidity and corrosive environments
  • A complete suite of backshells is available to provide environmental sealing


  • Military & Aerospace
  • Mining
  • Oil & Gas
  • Industrial


Description Measurement/Detail
Insertion Loss (Multimode) 0.35 dB typ (62.5/125), 0.75 dB max
Insertion Loss (Single Mode) 0.35 dB typ (9/125), 0.75 dB max
Back Reflection -45 dB typical (Single Mode)
Operating Temperature -28°C to +65°C
Storage Temperature -40°C to +70°C
Cross Talk Per EIA/TIA 455-42 ≥ 60 dB channel separation
Mating Durability 500 cycles per EIA/TIA-455-21
Vibration EIA/TIA-455-11, TC II & VII, 30 min/axis, 5-500 Hz sinusoidal, 5 – 2000 Hz random, 10 g
Mechanical Shock MIL-STD-901, Grade A, Class I
Thermal Shock -40°C to +70°C, EIA/TIA-455-71, test schedule C, 5 cycles
Thermal Cycling -28°C to +65°C, 5 cycles per EIA/TIA-455-3
Corrosion Resistance 500 hour salt spray per EIA/TIA-455-16, Test Condition I
Ozone Exposure 150 ppm for 2 hours per EIA/TIA-455-189
Humidity 240 hours @ 98% RH per EIA/TIA-455-5, Method B
Fluid Immersion EIA/TIA-455-12
Crush Resistance 7 tests @ 1250 Newtons per EIA/TIA-455-26
Maintenance Aging Terminus insertion and removal, 10 times
Terminus Retention Force 22 lbs for 5 seconds
Insert Retention Axial 100 psi torque for 1 minute
Cable Pull Out Force 162 lbs for 10 minutes per EIA/TIA-455-6
Cable Sealing Flexing 200 cycles at 180° flex per EIA/TIA-455-1
Impact 64 drops @ 7 feet rotated each time per EIA/TIA-455-2, Method B
Flammability 0.75 inch flame for 10 seconds mated, 1.5′ flame for 60 seconds unmated per EIA/TIA-364-81
Service Rating 600 VRMS
Dielectric Strength 1,800 VRMS @ sea level
Insulation Resistance 5,000 Mohm minimum @ 500 VDC