Junior Expanded Beam connectors (HMA)

  • Junior Expanded Beam connectors (HMA) is suitable for a variety of applications in harsh environments. The hermaphroditic design allows the mating of two connectors without the need for any adapter, allowing the connection of more cables in one optical path. Expanded beam technology, which uses lenses to expand and collimate the optical signal, makes this connector less sensitive to dirt and debris.

Temperature range
Outdoor environment (-55°C /+85°C)
Cable parameters
Jacket material
Cable construction Round cable
Outer diameter 5,5 mm
Fiber count 4
Fiber type SM OS2 or MMF OM1/OM3/OM4
Temperature range Operation: -55°C to +85°C
Storage: -55°C to +85°C
Installation: -20°C to +60°C
Connector parameters
MIL-DTL-83526/20 and /21
MIL-DTL-83526/20 and /21
Color of housing
Color of boot
Insertion Loss
<1,5dB (@1310/1550nm)
<1,0dB (@850/1300nm)
Return Loss
>32dB (@1310/1550nm)
>20dB (@850/1300nm)
Durability 3000 Matings minimum
Water Immersion 15m for 24 hours
Free Fall Resistance 500 Falls from 1.2m height
Vibration 20-500Hz, 3 directions, 0.75mm amplitude@ 10g acceleration
Crush Resistance 6700N
Corrosion Resistance 500 Hours Salt Spray
Cable Retention 1500N
Identification Traceability label with unique serial number on both ends of cable assembly.
Each assembly coiled on outdoor cable drum.