Micro Release Nut (uD3RN)

Micro Release Nut (uD3RN)

Price on request

The DCUBED Micro Release Nut (uD3RN) is a Shape Memory Alloy (SMA) based release actuator which locks sensitive equipment during launch and safely releases it on orbit. It is one of the smallest, yet powerful HDRM solutions on the market. Moreover, it is easily resettable (on-ground, in-space), easy-to-use and readily available as a COTS part. User friendly, high-performance release device triggering any space mechanism in orbit. DCUBED also offers a counterpart micro Pin Puller which can be viewed here.

Check out how to trigger and easily reset the DCUBED Micro Release Nut uD3RN here.


uD3RN DCubeD DataSheet

Vendor: DCUBED
Sold By : DCUBED Category:


  • On Ground and In Space Resettable in Seconds, up to 400 times
  • Short Delivery Time (6-8 weeks)
  • Fully Redundant Actuation
  • Smart SMA TriggerUltra Low Shock
  • Very Low Shock
  • Axial Load >2000N
  • Body Size: 25 x 25 x 25mm
  • Mass: 78grams
  • Surface Treated Stainless Steel
  • Temperatures: -35 C to +80 C
  • Customizable Interfaces
  • Export Limitation Free


Body Size (L x W x H) 25 x 25 x 25 mm (Screw Interface)
Mass ~78 g
Material 1.4404/316L
Operating temperature range -35oC to 80oC
Release nut dimensions Ø10 mm x 11 mm length
Maximum axial load (Release direction)
2000 N1 (TBC)
Internal load (applied axially to the back of the nut) 20 N (TBC)
Rapid resettability Yes, re-insertable nut
Redundancy Yes, the secondary actuation line










¹ Achieved with the internal application of a space certified solid lubricant (Molykote 106). Take care when placing optics in proximity to the mechanism.