Fixed FC Fiber Optic Attenuator

Fiber optic attenuator is able to reduce optical power and limit the optical power received by the photodetector within the limits of the optical receiver.
We offer a wide range of fiber optic attenuators, SC attenuator, FC attenuator, LC attenuator, ST attenuator, etc.
Fixed Fiber Optic Attenuator has different attenuation values from 1dB~30dB, 5dB attenuator, 10dB attenuator, 15dB attenuator, 20dB attenuator, 30dB attenuator for example.
Fixed Fiber optic attenuator has female to female adapter type attenuator and male to female plug-in type attenuator.

Female to female FC Fiber Optic Attenuator is able to couple from FC connector to FC connector, while male to female FC Fiber Optic Attenuator from FC adapter to FC connector. The combination of attenuation film in female to female FC attenuator or attenuation fiber in male to female FC attenuator and precision molded polymer/metal housing provides reliable and stable optical attenuation performance.


  • High reliability and stability
  • Low PDL and back reflection
  • Low wavelength dependent loss
  • High precision attenuation value


  • Telecom networks
  • Optical Cable TV network
  • FTTH Passive Optical Network
Operation Wavelength 1310nm/1550nm
Attenuation Value ±0.5dB (<10dB); ±1.0dB (>10dB)
Max. PDL ≤0.1dB
Max. Optical Input Power 500mw
Return Loss UPC ≥50 dB
APC ≥60 dB
Operating Temperature -30°C~+75°C
Storage Temperature -40°C~+85°C
Ordering Information:
Brand MAY
Product Name AT: Attenuator
Connector/Adapter Type FC: FC
Type MF: Male to Female Plug-in Type
FF: Female to Female Adaptor Type
Endface A: APC
Mode SM: SM
OM1: MM 62.5/125um
OM2: MM 50/125um
Wavelength 8: 850nm
3: 1310nm
5: 1550nm
35: 1310/1550nm
Attenuation Value 1: 1dB
2: 2dB
For Example:
Picture Part Number Description
MAY-AT-FC-FF-U-SM-35-3 FC/UPC Attenuator, female to female adaptor type, SM, 1310nm and 1550nm, 3dB
MAY-AT-FC-MF-U-SM-35-5 FC/UPC Attenuator, male to female plug-in type, SM, 1310nm and 1550nm, 5dB
MAY-AT-FC-MF-A-SM-35-10 FC/APC Attenuator, male to female plug-in type, SM, 1310nm and 1550nm, 10dB