EBAD NEA1120-05 Pin Puller
Ensign-Bickford Aerospace & Defense (EBAD)
The EBAD NEA1120-05 Pin Puller is a non-pyrotechnic Hold Down & Release Mechanism (HDRM) designed for the spacecraft market. It employs EBAD’s patented split spool technology, which is also used in their HDRMs. The device operates with a spring-loaded plunger restrained by a split-spool and fuse wire assembly. The spool subassembly consists of two halves […]
Key figurescomparable across the catalogue
- Mass
- 0.047 kg
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- MASS
- 1.66 oz [47 g] MAX
- NUMBER OF WIRES
- 2 TOTAL (2 PRIMARY ONLY)
- CABLE LENGTH
- 30.0 in [STANDARD LENGTH]
- OPERATIONAL CURRENT
- 3 Amps FOR 50ms
- RESISTANCE
- 0.95 to 1.6Ω @ 23°C
- INSULATION RESISTANCE
- >100 MΩ @ 250 VDC
- NO FIRE LIMIT
- 210 mA FOR 5 MIN @ AMBIENT
- PULL FORCE (BEGINNING OF TRAVEL)
- 14.2 lbf [6.5 Kg / 63.5 N] MIN
- PULL STROKE
- 0.315in [8.0mm]
- SIDE LOAD
- 35 lbf [15.9 kg / 155.7 N] MIN
- ACTUATION TIME
- 50 ms MAX @ 3.0 Amps
- RE-USABLE
- MANUAL REPLACEMENT OF FUSE WIRE
- NON-OPERATIONAL PRE-ACTUATION
- -76°F TO +230°F [-60°C TO +110°C]
- OPERATIONAL
- -76°F TO +230°F [-60°C TO +110°C]
- NON-OPERATIONAL POST-ACTUATION
- -76°F TO +230°F [-60° C TO +110°C]
- RANDOM VIBRATION
- 29.4 Grms
About
The EBAD NEA1120-05 Pin Puller is a non-pyrotechnic Hold Down & Release Mechanism (HDRM) designed for the spacecraft market. It employs EBAD’s patented split spool technology, which is also used in their HDRMs. The device operates with a spring-loaded plunger restrained by a split-spool and fuse wire assembly. The spool subassembly consists of two halves held together by a tight winding of a restraining wire. This restraining wire terminates in a fuse wire connected to two electrical terminals. The spool assembly prevents axial motion of the plunger. When sufficient electrical current is passed through the fuse wire, it melts, releasing the spool halves and allowing the plunger to retract. The pin puller is fully vented and vacuum compatible. It features a re-usable design with manual replacement of the fuse wire. Housing finish options include hard black anodize (MIL-A-8625, Type III, Class 2 with Teflon impregnation MIL-A-63576, Type 1) or gold chem film (MIL-DTL-5541, Class 1A).
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.