Product Releases

New Shape Memory Alloy Latch Actuator Assembly

Thu, 08/29/2013 - 2:27pm
MDT Staff

Autosplice has introduced an innovative new latching assembly based around an actuator that uses Nitinol (Nickel Titanium) shape memory wire to drive the latching and unlatching functions. The compact, energy saving latch assembly is designed for use in space constrained applications that require small size and low power along with repetitive and reliable latching/unlatching operations.

The unique design optimizes energy efficiency through a special over-center approach that combines a spring/lever arm with the shape memory actuator. This multiplier effect enables the latch to deliver 0.120” (3mm) of throw at the plunger while only using applied energy to create the first 0.070” of travel. Input power requirement is 2.55 to 3 VDC @ 200msec pulse, with power consumption of approximately 0.28 watt-seconds and drive force of 50 grams. The latching device also offers noiseless operation and a very small heat signature in comparison to other actuation solutions.

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