This post explains for the MOSFET.
The Part Number is 50N03.
The function of this semiconductor is 30V, 50A, Power Transistor.
The package is TO-252, TO-251 Type
Manufacturer: Shenzhen Tuofeng Semiconductor Technology
Preview images :
50N03 is 30V, 50A, Power Transistor. An N-channel MOSFET (Metal Oxide Semiconductor Field Effect Transistor) is a type of field effect transistor (FET) that uses an N-type semiconductor material as the conducting channel to control the flow of current.
When a positive voltage is applied to the gate terminal, it attracts electrons to the channel, creating an inversion layer and allowing current to flow between the source and drain terminals.
N-channel MOSFETs are used as electronic switches in many applications due to their ability to handle relatively high currents and voltages.
• Fast switching MOSFET for SMPS
• Optimized technology for DC/DC converters
• Qualified according to JEDEC1) for target applications
• N-channel, logic level
• Excellent gate charge x R DS(on) product (FOM)
• Very low on-resistance R DS(on)
• Avalanche rated
• Pb-free plating; RoHS compliant