Born Out of Space Constrained Applications
The EBAD Auto Resettable Pin Pullers were born out of space constrained applications where the Actuator is buried deep within a complex instrument with no access to perform a manual reset. Auto reset is achieved by incorporating a secondary SMA actuator which can re-extend the Pin and yet not interfere with normal actuation. This is done using a custom flexure developed by EBAD using our patented SCSMA material.
NEA (Non-Explosive Actuators) – As with all EBAD products, the Auto Resettable Pin Pullers are non-pyrotechnic and field reset-able with a minimum qualified life of 100 cycles.
Electrical Reset – The mechanism can be reset remotely by powering the reset circuit with no manual intervention. A redundant reset circuit may be incorporated for maximum reliability.
Redundant Firing Circuit – As with all EBAD Actuators a redundant SMA circuit is incorporated. This provides complete electrical redundancy as well as mechanical redundancy for the critical trigger element.
Fast Acting – By directly passing current through the SMA element, the Pin Puller’s perform in millisecond time frame making them ideal for synchronized and simultaneous release of multiple tie-down payloads.
Auto Shut-Off Switches – Simple Auto Shut Off Switches are incorporated into each Pin Puller to protect the Trigger. This makes them very “user friendly” and operable from a wide range of current and voltages.
Auto-Reset P5 Details
The P5SR Auto Resettable Pin Puller retracts the output Pin with 5 lb (22N) of force. It uses the same EBAD™ trigger mechanisms as used in our P5 standard Pin Pullers which have 20+ years of space pedigree. It is fast acting and qualified to endure typical Aerospace environments. As with all EBAD products, key attributes include:
- Non Pyrotechnic and Field Reset-able
- Redundant Firing Circuit,
- Maximum Reliability Thru
- Design Simplicity
- Pedigree, and
For more information:
Auto-Reset P5 Accessories
Function Time at Various Temperatures
Nominal values for reference only.
Specification subject to revision. Contact EBAD for detailed ICD (Interface Control Drawing).