FEATURES Metal ion doped fiber High-power light source durability Wavelength independence Attenuation levels ranging from 1dB to 30dB, with standard and premium tolerances, plus custom configurations. 1310nm, 1550nm, 1250-1625nm and 1350/1550nm dual wave lengths POLISHES AVAILABLE UPC -- return loss 55dB or greater APC -- return loss 65dB or greater SPECIFICATIONS PARAMETER SPECIFICATION Attenuation Range 1-20dB Attenuation Tolerance 1-5dB: ?.5dB, 6-30dB: ?0% of dB value Return Loss -55dB UPC, -60dB EUPC, -65dB APC Operating Wavelengths 1310/1550nm ?0nm Operating Temperature -40oC to +85oC Fiber Type 9/125um the related products is below: Variable Attenuators FC/PC Attenuators SC/PC Attenuators ST Attenuators LC attenuator MU attenuator Fixed Attenuators In-line Fixed Attenuator Oplinkbay is a profesional manufacturer and supplier of optical communication products in shenzhen china, welcome for inquiry