XK505 silicon NPN transistor - STC

XK505 silicon NPN transistor by STC.   

Package: TO-18 can with gold plated leads   

can top stamped with a "M"   

Awaiting datasheet... or any info at all appreciated !   

Status:  RNOS (Rare New Old Stock)    

Tested Components: YES.    

RoHS compliant: no