This part is a kind of semiconductor called K1050E70.
Function of this product has silicon bilateral voltage triggered switch.
Manufacturers : Teccor
Image and pinout :
Some of the text within the PDF file :
Thyristor Product Catalog Teccor Electronics 1800 Hurd Drive Irving, Texas 75038 United States of America Phone: +1 972-580-7777 Fax: +1 972-550-1309 Website: http://www.teccor.com E-mail: firstname.lastname@example.org ©2002 Teccor Electronics Thyristor Product Catalog i http://www.teccor.com +1 972-580-7777 Teccor Electronics reserves the right to make changes at any time in order to improve designs and to supply the best products possible. The information in this catalog has been carefully checked and is believed to be accurate and reliable; however, no liability of any type shall be incurred by Teccor for the use of the circuits or devices described in this publication. Furthermore, no license of any patent rights is implied or given to any purchaser. Teccor Electronics is the proprie [ ... ]