This part is a kind of semiconductor called MAC97A8.
Function of this product has 4Q Triac.
Manufacturers : NXP
Image and pinout :

Some of the text within the PDF file :
TO-92 MAC97A8 4Q Triac 1 May 2015 Product data sheet 1. General description Planar passivated very sensitive gate four quadrant triac in a SOT54 plastic package intended to be interfaced directly to microcontrollers, logic integrated circuits and other low power gate trigger circuits. 2. Features and benefits • Direct interfacing to logic level ICs • Direct interfacing to low power gate drivers and microcontrollers • High blocking voltage capability • Planar passivated for voltage ruggedness and reliability • Triggering in all four quadrants • Very sensitive gate 3. Applications • General purpose low power phase control • General purpose low power switching • Solid-state relay 4. Quick reference data Table 1. Quick reference data Symbol Parameter Conditions VDR [ ... ]
MAC97A8 PDF Datasheet Download
