The S125 is a volume-ready Shape Memory Alloy wire actuator, with a MOSFET switching & protection circuitry on a Printed Circuit Board substrate. The ideal uses are latch or trigger release mechanisms for battery-powered devices.
The S125 is a short-stroke latch-release or trigger-release mechanism featuring totally silent operation and thin profile typical of our Shape Memory Alloy constant-force actuators. (more…)
We designed and built a new pillbox wax actuator without a ‘fill hole’ because that hole took up extra height. We filled hot wax (90˚C) through the piston hole using a ‘shim’ between the o-ring and piston to allow air and excess wax to escape.
Below is the test fixture we built to load test this actuator up to 50 pounds.
Size: 18mm x 6 mm with 6mm diameter plunger
Weight: 8.3 grams filled (estimated 0.4 grams wax)
Stroke: ~2mm (seems to be independent of load)
Force: Tested to 50 pounds (see photo) with no noticeable change
Reset Force: Seems to require ~5 lbs to fully reset (more…)
-Our custom MOSFET/Protection Circuit is on each PCB-Actuator
-Typical 3-wire interface: Power, Ground, and Enable. When you raise the Enable line logic level HIGH, we energize until you lower the Enable. The actuator moves to the end of stroke, and ‘holds’ there safely until you release it (set Enable to Low).
-The actuators typically operate from 3 to 12 volts
-Typical stroke is in the 0.1″ to 0.25″ range
-Typical force is in the 0.5# to 5.0# range (more…)