By Chris Wack 



  Emcore Corp. said Monday it has been awarded a contract by Raytheon Technologies Corp. valued at $3.6 million to deliver SDI500 Inertial Measurement Units for the MK 54 lightweight torpedo program. 


  Communications-technology company Emcore said the units are expected to be delivered by September 2021. 


  The MK 54 is an advanced anti-submarine torpedo designed and developed by Raytheon Integrated Defense Systems in collaboration with the U.S. Navy. 


  Emcore said its compact, low power, high-quality SDI500 IMU enable superior guidance and control of the MK 54 torpedo during in-water maneuvers, plus improves system cost-effectiveness, reduces obsolescence, and increases sustainability for Raytheon and its customers. 


  Emcore shares were up 29%, to $4.50, in premarket trading. 


  Write to Chris Wack at chris.wack@wsj.com