This part is a kind of semiconductor called RU190N08Q.

Function of this product has N-Channel Advanced Power MOSFET.

Manufacturers : Ruichips

Image and pinout :

Some of the text within the PDF file :

RU190N08Q N-Channel Advanced Power MOSFET Features Pin Description · 80V/190A RDS (ON)=3.9mΩ(Typ.) @ VGS=10V ·Avalanche Rated · Reliable and Rugged · Lead Free and Green Devices Available Applications TO-247 ·Automotive applications and a wide variety of other applications ·High Efficiency Synchronous in SMPS ·High Speed Power Switching Absolute Maximum Ratings Symbol Parameter N-Channel MOSFET Rating Unit Common Ratings (TA=25°C Unless Otherwise Noted) VDSS VGSS TJ TSTG Drain-Source Voltage Gate-Source Voltage Maximum Junction Temperature Storage Temperature Range Diode Continuous Forward Current TC=25°C 80 ±25 175 -55 to 175 190 ① V °C °C A IS Mounted on Large Heat Sink IDP ID PD RθJC 300µs Pulsed Drain Current Tested Continue Drain Current Maximum Power Diss [ ... ]

RU190N08Q PDF Datasheet Download