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 CSX122-A is a plastic aspheric lens with a diameter of 6.28 mm, a focal length of 12.20 mm, a numerical aperture of 0.12, and an anti-reflective coating for the 400 to 700 nm wavelength range. Originally released on February 28, 2013, this component has a lifecycle status of discontinued, with its last web presentation having opened on that date. Please submit the exact part number, quantity, and application requirements for 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 CSX122-A. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.