FC connector key width

Mar 02, 2007 2 Replies
P

I'm rejiggering my test setup to use FC/APC connectors, and I notice in the OFR catalogue that their barrel connectors come in two flavours, narrow-slot (2.0 mm) and wide-slot(2.14 mm). I gather that the narrower ones are good for APC because they reduce fretting and so on, but I don't know whether these barrels play well with other types (say normal FC or FC/PC).



Are normal FC barrel connectors suitable for APC, or should I replace the ones I have? And if so, should I get narrow or wide types?



Thanks,



Phil Hobbs


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C

Narrow is fine if APC mating is onl yconcern. Wide is sometimes preferable for polarization maintaining by I never measured to see for myself. If you don't care about PM, then try to use the most popular type to make life easy down the road (Key width -Conn. 1.98-2.02mm, Keyway width -Adapt/Receptacle 2.03-2.07mm). Resources: Seiko, Senko, etc.

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P

Thanks, that's helpful.

Cheers,

Phil Hobbs

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