Confirm the exact configuration
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.

Thorlabs
The Thorlabs FA05T is a fixed fiber optic attenuator providing 5 dB of attenuation across an operating wavelength range of 1240 to 1620 nm. Featuring an FC/PC connector interface, this component has an individual package weight of 0.02 lbs and was originally released on August 17, 2005. Refer to current manufacturer documentation for the active lifecycle status of this part. Submit the exact part number, quantity, and application requirements to request a quote.
Industrial and obsolete parts are priced per enquiry: the final price depends on available stock, condition, quantity, and your delivery destination, so a fixed list price would be misleading. Request a quote and we confirm current pricing, lead time, and sourcing options — including hard-to-find and discontinued Thorlabs references — within one business day.
For a faster response, include quantity, condition, and delivery destination.
Verified configuration
Engineering context
Use the manufacturer part number and model code—not appearance alone. Connection, size, material, voltage, pressure, seal, and control options can differ within the same product family.
Provide quantity, delivery country and ZIP/postal code, required condition, target date, and photographs of the existing nameplate when available.
Our sourcing response is prepared against Thorlabs FA05T. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.