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 CM05-PBS201 is a 16 mm cage-cube-mounted polarizing beamsplitter cube operating within the 420 to 680 nm wavelength range, complete with 8-32 and M4 adapters. Released on December 6, 2013, this unit reached its discontinued status on August 17, 2016, and has been officially replaced by the CCM5-PBS201 model. Submit the exact part number, quantity, and application requirements to request a quote for available inventory.
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 CM05-PBS201. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.