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 352440-B is an unmounted Geltech aspheric lens featuring a focal length of 2.95 mm and an anti-reflective coating optimized for the 600 to 1050 nm wavelength range. Originally released on March 7, 2008, this product has been discontinued and officially replaced by model 355440-B. Although no longer stocked, this component remains available by special order. Submit an RFQ with your exact part number, quantity, and application requirements to receive current pricing and lead times.
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 352440-B. Final compatibility remains subject to the machine manufacturer’s requirements and complete application data.