Wholesale FC Fixed Optical Attenuator Single/Multi Mode 1250-1650nm Wavelength Range

When you're trying to balance signal levels across a dense fiber network, power mismatches can cause real headaches, and this is where a fixed attenuator steps in to drop that optical power precisely without introducing noise or reflections.

What we've done is pack that functionality into an FC connector body with a premium ceramic ferrule that handles up to 1000 mating cycles without degradation, so it's pretty much set-and-forget once you plug it in.

You're looking at attenuation form 1dB to 30dB across entire 1250-1650nm range, with insertion loss under 0.5dB for the 0-5dB range, and return loss hitting ≥50dB for UPC or ≥60dB for APC—that matters more for high-speed links than most buyers realize.

We usually stock the metal housing version for singlemode, but the plastic option is lighter and fine for multimode setups, though the metal one dissipates heat better in tight splice trays (typically 20 days or so lead time for non-standerd values like 18dB).

It's not ideal for applicaion needing variable attenuation or fine-tuning on the fly, since this is a fixed-value compnent, but for consistent power reduction in CATV or telco racks, most engineers just order 5dB and 10dB units in bulk and call it done.