Pricing subject to change.


  • Optical Power: 1-50 W
  • Aperture Size: 4 mm
  • Optics: std gold, custom optics available
  • Switching Speed: 10 ms
  • Position Sensors


  • OEM Safety
  • High Rep Rate DPSS
  • Thin Working Zones
  • Small Package


This model is designed for use as a safety interlock and for slow processing. The magnetic system allows use from 12 or 24 VDC based circuits. Position sensors are built-in standard, yielding logic outputs for both open and closed states. Dielectric mirrors are available for common wavelengths, providing optical power handling to 50 W. Very low out-gassing materials are used in the construction.

Compatible system controllers include user-built circuits or CX3000 controller.

Options are available using a suffix code system. Many options cannot be installed after manufacture, so choose carefully. Standard mirror is gold for IR use. The –AL suffix is for aluminum mirror, best for UV and visible. The –D123 mirror is a triple line YAG mirror for 355, 532, 1064 nm. The –C2 suffix is for CO2 use. Unit is not designed for upside down operation (w/r to photo), but can be adjusted for this orientation upon request. Other options upon request.

See the “Mechanical Drawing” tab for dimensions. Also see the “Application Notes” tab on the home page menu for important operational issues including: thermal mounting, user-built circuits, polarization, lifetime, jitter, vacuum operation, and contamination. See the “Accessories” tab for useful system components.

Special Considerations for this model include careful attention to mounting around high magnetic fields, such as Faraday Rotators. The position sensors are TTL logic, so standard handling precautions for electronic static control should be observed.

Restricted use for this model include specific laser wavelengths matching mirror options listed on serial label, high quality thermal mounting, and adequate hold voltage at user’s maximum temperature.


Aperture Diameter 4.0 mm
Typical Beam Diameter used for Specs 2.0 mm
Maximum Shutter Repetition Rate 5 Hz
CW and Quasi-CW Optical Power Handling 25 W Au Mirror — 50 W Dielectric
Typical Damage Threshold, Aligned Polarization 1 J/cm2 Au — 3 J/cm2 Dielectric (PW = 5 ns)
Delay to Begin Opening after Command Open 20 ms
Opening Time Switching Speed 5 ms
Delay to Begin Closing after Command Close 10 ms
Closing Time Switching Speed 5 ms
Minimum FWHM Exposure Capability 30 ms
Thermal Power Dissipation Holding Open 3 W (5V)
Thermal Power Dissipation, Repetitive Cycling 5 W @ 5 Hz
Nominal Magnetic Winding Impedance 8 Ohms
Cable/Wire Type and Length 18 inch, 22 g. twisted pair leads
Mounting Surface for Thermal Sinking Bottom Threaded Surface
Position Sensors Standard, TTL Logic, Require 5 V
Weight 5 Oz.
Size (see mechanical drawing) 3.00 x 1.50 x 0.75 Inches


Aperture Size Range

3mm to 4mm


Aluminum, Dielectric, Gold

Wire Length

Any length

Wire/Cable Type Wire Gauge

Teflon, Vinyl


Any 6 pin connector


3.00 x 1.50 x 0.75 in., note: minimal size change can be designed


Engraving, Labels

Mechanical Drawing

Note: 3-D solid model available upon request (Solidworks or .stp file)

Electrical Drive

Classification Safety/Process
Number of Wire Leads Std. Six, 22 g
Number of Wire Leads None
Cable or Wires – Length 18 inches, Cable if controller ordered — 10 feet
Cable/Wire Termination MTA-100, AMP, P/N 643813-60, LEMO plug if controller ordered
Recommended Controller and Voltage Present Capacitor Discharge 12-24 V, 12-24 V PWM, or our controllers
Gravity Considerations Symmetric Open/Close speed with base down
Shutter Winding Resistance 8 Ohms Nominal
Typical Minimum Hold Open Voltage, Room Temperature 4 V
Typical Hold Open Power Dissipation as Heat 3 W
User Power Supply Notes 12-24 V, 500 mA Rating, Surge Capacitor on output
User Drive Circuit/Cap Discharge 12 V, C=4700 mmF, R=10 ohm 24 V, C=2200 mmF, R=30 ohm, Flyback diode 1N4001 BUILT-IN
Nominal Winding Inductance 10 mH
User Drive Circuit/PWM Type 12 or 24 V for 50 ms, then drop to 5 V hold, 1N4001 Flyback BUILT-IN
Color Codes and Function of Wires White, + to winding
Black, to winding
Red, Supply Regulated +5.0 VDC — 30 mA
Blue, 5V Return and Sensor Ground
Yellow, NC Output from Sensor –TTL (reads hi when shutter closed)
Orange, NO Output from Sensor — TTL (reads hi when shutter open)

Read sensor outputs with reference to the blue ground wire. These outputs are totem-pole buffered TTL, seeking a load of ~10 K ohms. Typical output is 4 V. Do not try to draw more than about 5 mA from the Yellow or Orange Outputs, or the voltage will load down.