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 352350-C is an unmounted Geltech aspheric lens featuring a focal length of 4.5 mm, a numerical aperture of 0.42, and an anti-reflective coating optimized for the 1050 to 1620 nm wavelength range. Originally released on March 7, 2008, this component is currently discontinued by the manufacturer but remains available through special order. Contact us to request a quote for pricing and lead times by submitting the exact part number, quantity, and application requirements.
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 352350-C. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.