Sinclair Interplanetary


The Company

Founded in 2001 by Doug Sinclair, Sinclair Interplanetary is a supplier of hardware, software, training and expertise to the spacecraft community.  The primary focus is on low-cost, rapid-schedule programs to produce micro- or nano-satellites.

Latest News

Recent Announcements

  • Free to a Good Home: DC/DC Converter ICs We build radiation-tolerant hardware, meaning that we buy industrial/automotive ICs and then lot-screen them for radiation performance.  Sometimes parts pass, sometimes they fail.  When they fail, we ...
    Posted Jul 11, 2019, 9:01 AM by Doug Sinclair
  • Offerings to the god of Laser Power Burt Munro famously kept a shelf of burned motorcycle pistons with the label "Offerings to the god of speed".  In that vein, here are just a few of the MEMS ...
    Posted Jun 21, 2019, 7:52 AM by Doug Sinclair
  • NSP Software Library NSP is the software protocol used by equipment made by Sinclair Interplanetary, the Space Flight Laboratory, the Deep Space Industries (now Brandford Space) Comet propulsion system, and possibly others.  Robin ...
    Posted Jan 12, 2019, 8:25 AM by Doug Sinclair
  • 30 mNms Wheels for Immediate Sale We have four brand new 30 mNms reaction wheels on the shelf, available for sale.  Details here.  They were built for a customer who sadly had to back out of ...
    Posted Apr 9, 2019, 8:05 AM by Doug Sinclair
  • Remembering Tim May I note with sadness the recent death of Tim May, reported here and here.  Before I was a spacecraft engineer I was a Cypherpunk, and Tim was at the core ...
    Posted Dec 15, 2018, 5:03 PM by Doug Sinclair
Showing posts 1 - 5 of 75. View more »


Star Trackers

Reaction Wheels

Optical Communications

Licensed Products

Inventory for Sale

Special Products and Services 

Capabilities and Equipment 

Space Heritage 


Peaceful Use Policy

Free to a Good Home