NS25B 25mm Optical Shutter


Current Lead Time: 3 – 4 weeks

Expedites are subject to availability and will be approved upon order confirmation.


Click to view the NS25B datasheet, which features mechanical and electrical specifications, timing data, and technical drawings.

The Uniblitz NS25B is a 25mm-aperture bi-stable optical shutter utilizing our patented N-CAS® technology. The NS25B’s simple design provides maximum clearance around the aperture, and a machined flat surface makes for its easy integration into virtually any system. The NS25B has an overall diameter of 2.250 inches, and an electronic synchronization is available.

Bi-stable shutter devices, like the NS25B, require no power to hold the blades in either the open or closed state.

*The “For use in Vacuum” option will equip the shutter with encapsulated coils for vacuum levels up to 10-6 Torr. The housing, connector, and electronic sync options cannot be selected from the product builder when “For use in Vacuum” is applied as these options are not vacuum compatible and may cause outgassing. For higher vacuum-rated applications, or questions, please contact us.

Key Features

Check out the NS25B datasheet for additional information regarding features and specifications.

  • 25mm aperture
  • Bi-stable operation
  • Only two unique moving parts
  • Slim, low-profile form-factor
  • RoHS Compliant
  • Transfer time on opening: 5.0 milliseconds
  • Total opening time: 8.0 milliseconds
  • Can be configured for the VED24, ED12DSS, or VDM1000 shutter drivers.


NS25B Datasheet Download
3D Models
NS25B 3D Model (STEP file included in ZIP) Download

Additional information

Driver Compatibility

, ,

Blade Option


Electronic Sync.


For use in Vacuum*


Flying Leads

No, Yes