This is one of the types of MOSFETs and is a kind of transistor.
Part Number: LR8726, IRLR8726PbF
Function: Vdss=30V, HEXFET Power MOSFET
Package: D-Pak Package
Manufacturer: International Rectifier, Infineon
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Applications
1. High Frequency Synchronous Buck Converters for Computer Processor Power
2. High Frequency Isolated DC-DC Converters with Synchronous Rectification for Telecom and Industrial Use
Pinout
Features
1. Very Low RDS(on) at 4.5V VGS
2. Ultra-Low Gate Impedance
3. Fully Characterized Avalanche Voltage and Current
4. Lead-Free
5. RoHS compliant