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Low Shock Release Device (LSRD-10K/C-2000)

Low Shock Release Device (LSRD-10K/C-2000)
Registration date
(updated date)
2/12/2016
(25/4/2018)
JAXA development group Research Unit II, Research and Development Directorate
View diagram See Attachment 1
Environmental resistance See Attachment 2
Patent number
(publication number)
N/A
Reference N/A
Satellite and launch date Flight-proven
8 devices Installed in the TSUBAME (Super Low Altitude Test Satellite. Launched at December 23, 2017)
Note N/A
Manufacturer

Mitsubishi Electric Corporation
Kamakura-shi, Kanagawa, Japan
https://www.mitsubishielectric.com/en/worldwide/index.html

Features

By converting the holding tension force to rotational motion of an inner rotor, it is possible to prolong the operating time to release (shock reduction).
Shape memory alloy is adopted as trigger mechanism.

  • Low shock level (200 Gsrs or less @10kN)
  • Reusable
  • Small and light weight
  • Easy-handled

Applications

For many types of hold-down and release mechanisms.

  • Solar array panels
  • Launch locks of antenna
  • Small satellite separation mechanisms
  • and so on

Specifications

Property Specification
Load 10 kN (2248 lbf)
Shock level 200 Gsrs ↓ @10kN
Actuation period 150 msec ↓
Life 20 times
Reusability Resettable without refurbishment
Dimension φ 52 × 43 mm (φ 2.047 × 1.693 inch)
Weight 350 g (12.35 oz) ↓
Temperature range Nonoperating -80 to +60 °C (-112 to +140 °F)
Operating -55 to +60 °C (-67 to +140 °F)
Resistrance value 3.0 ±1.0 Ω
Actuation current 6.0 +1.5 / -0.7 A
Current pulse width 30 ±3 msec

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