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Singlemode FC/APC Fiber Optic Attenuator

Singlemode FC/APC Fiber Optic Attenuator
Amphenol Custom Cable singlemode FC/APC fiber optic attenuators are machine polished to a scratch-free end face for increased performance and low return loss. Optical performance is 100% tested to ensure dB loss accuracy for each precision-doped fiber optic attenuator. Each attenuator is individually serialized and bagged with actual dB values displayed on the bag label.

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  • Premium Doped Fiber Technology
  • Supports High Power Levels
  • Very Low Polarization Dependent Loss (PDL)
  • Telcordia GR-910-CORE Compliant
  • Accurate Attenuation with Tight Tolerance
  • Low Back Reflection
  • Fixed Attenuation
  • Available in 0–20dB UPC & APC
  • Clean & Scratch-free Ferrule End Face
  • Optical Performance 100% Factory Tested


  • Telecom Networks
  • DWDM Applications
  • CATV Networks
  • Optical Transport
  • Tests & Measurements

Technical Specifications

  Singlemode UPC Singlemode APC Multimode
Return Loss < 50dB < 60dB N/A
Attenuation Range 0dB ~ 20dB 0dB ~ 20dB 0.5dB ~ 12dB
Tolerance 0–5dB  ±0.5dB
6–20dB  ±10%
0–7dB  ±0.5dB
8–12dB  ±0.7dB
13–20dB  ±1.0dB
1–7dB  ±1.0dB
8–12dB  ±1.5dB
Tested Wavelength 1310nm & 1550nm 1310nm & 1550nm 850nm or 1300nm
PDL < 0.2dB < 0.2dB < 0.2dB
Operating Temperature -20°C to +70°C
Storage Temperature -40°C to +80°C

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