This part is a kind of semiconductor called BTA208-600D.
Function of this product has Three quadrant triacs guaranteed commutation.
Manufacturers : NXP
Image and pinout :
Some of the text within the PDF file :
Philips Semiconductors Objective specification Three quadrant triacs guaranteed commutation GENERAL DESCRIPTION QUICK REFERENCE DATA SYMBOL PARAMETER BTA208 series D, E and F Passivated guaranteed commutation triacs in a plastic envelope intended for use in motor control circuits or with other highly inductive loads. These devices balance the requirements of commutation performance and gate sensitivity. The "sensitive gate" E series and "logic level" D series are intended for interfacing with low power drivers, including micro controllers. MAX. BTA208BTA208BTA208600D 600E 600F 600 8 65 MAX. 800E 800F 800 8 65 UNIT VDRM IT(RMS) ITSM Repetitive peak off-state voltages RMS on-state current Non-repetitive peak on-state current V A A PINNING - TO220AB PIN 1 2 3 tab DESCRIPTION main t [ ... ]