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 BSP05-B1 is a 3 mm thick BK7 beam sampler designed for beam pick-off with a diameter of 1/2 inch and an operating range of 700 to 1100 nm. Originally released on September 3, 2003, this discontinued component was officially replaced by the BSF05-B on April 16, 2009. Submit your exact part number, quantity, and application requirements to request a quote for available inventory.
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 BSP05-B1. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.