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SN Junior Connector

SENKO’s SN® Junior connector is designed for special small duplex connection needs for high density situations such as behind the wall (BTW), cassettes, and modules where space is limited. The connector features a latch locking mechanism to confirm engagement prior to deployment. The connector uses the widely deployed 1.25 mm ferrule technology that has been used in LC connectors for decades.
SN Licensees

  • Latch locking mechanism
  • Accepts 2 x 900 μm buffered fibers
  • Uses proven LC ferrule technology
  • Extra small for space limited installations
Parameters Single-mode Multimode
SM Premium Low Loss SM Premium SM Premium Low Loss SM Premium Premium
Typical Insertion Loss (dB)* 0.05 0.08 0.07 0.12 0.05
Max Insertion Loss (dB)* 0.15 0.20 0.15 0.25 0.15
Typical Return Loss (dB) ≥55 ≥65 ≥25
Operating Temperature (°C) -40 to +75
Durability <0.2dB typical change, 500 mating’s
Ferrule Ø 125μm 127μm

* Per random mating testing IEC 61753-1

Data Center

On Board Optics



Quantum computing



Government & Defense

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The SN Connector can be used in temperatures as low as -40°C and up to 75°C.

The SN Junior connector utilizes a latch. press the latch and it will release the connector from the adapter.

It will use 2 individual buffered fibers. Up to 900µm diameter.

The SN Junior will fit anything but a Compact or Mini series adapter.