Micro Release Nut (uD3RN)
Dcubed
The Dcubed Micro Release Nut (uD3RN) is a Shape Memory Alloy (SMA) based release actuator designed to secure sensitive equipment during launch and release it on orbit. It is a compact, high-performance, and resettable HDRM solution.
Typed specifications6 values
Discloses 3 of 10 fields engineers filter by in this category (category median 2).
- Mass
- 38 g product page
- Preload / holding force
- 4 kN product page
- Envelope (L×W×H)
- 25 x 25 x 25 mm product page
- TRL
- 9 product page
- Lead time
- 10–12 months product page
- Cycles / reuses
- 40–100 product page
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier10 lines, in the manufacturer's own wording
- TRL
- 9
- On-ground resettable
- 40-100 times
- Short delivery time
- 10-12 weeks
- Axial load (Release Load)
- 4,000 N
- Proof load
- 4,500 N Pull-out
- Body size
- 25 x 25 x 25 mm
- Mass
- 38 grams
- Body material
- Hard anodized Aluminum 7075-T7351
- Nut material
- Titanium grade 5
- Temperatures
- -65°C to +75°C
About
The Dcubed Micro Release Nut (uD3RN) is a state-of-the-art Shape Memory Alloy (SMA) based release actuator. Its primary function is to securely lock sensitive equipment during the demanding launch phase of a space mission and then safely release it once on orbit. This device stands out as one of the smallest yet most powerful Hold Down and Release Mechanism (HDRM) solutions available in the market. A significant advantage of the uD3RN is its resettability, both on-ground and potentially in-space, allowing for multiple uses and testing. It is designed for ease of use and is readily available as a Commercial Off-The-Shelf (COTS) part. Key features include a TRL of 9, on-ground resettability for 40-100 times, short delivery times (10-12 weeks), fully redundant actuation, smart SMA trigger technology, and ultra-low shock during release. The device can handle an axial release load of 4,000 N and a proof load of 4,500 N pull-out. Its compact body measures 25 x 25 x 25 mm and weighs 38 grams. The body is constructed from hard anodized Aluminum 7075-T7351, while the nut is made from Titanium grade 5. It operates across a wide temperature range from -65°C to +75°C and offers customizable interfaces. The product is ITAR Free.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.