Hello avionic. Thanks for clearing that up. Checking the PDF, "FA = 300-470hfe" "FB= 430-600hfe", E=400=800hfe" , suffix “-TA” means tape and ammo packing, and suffix “-BU” means bulk packing, then the example that you showed me, KSA992FBTA means FB, hfe rating, and TA, as in tape and ammo...