mosfet-dat

model selections

Model Mark Manufactuers CH type Descriptions
AOD403 D403 AOSMD-dat
AOD4184A 4184 AOSMD-dat N 40V N-Channel MOSFET
IRF540N [Infineon-dat
NCE6050 ncepower-dat TO-252-2 N NCE N-Channel Enhancement Mode Power MOSFET
AO3401 A19T AOSMD-dat
2N7002 7002 N
SI2301
SI2307
IRF5305 5305 Infineon-dat
IRFR1205 IOR-dat

dual channel

Model Mark Manufactuers Descriptions
IRF8313 Infineon-dat

high power mosfet

circuit guides

load switching

Power switching is better with N-type devices

Because N-type transistors in general can carry more current than P-types, they are preferable for switching heavy loads. Low-side switching with N-type devices is easier than high-side switching and can often be done by microcontroller ports without the need for special drivers. Using an N-type transistor for high-side switching is possible but requires a control voltage higher than the load voltage connected to the source/emitter. Some sort of charge pump is needed to pull the gate/base above the source/emitter voltage. This complicates the design, not only making it more expensive but also increasing its sensitivity to noise and interference. Controlling such a high-side switch using PWM can be problematic because of the charge pump.

Parallel using Mosfet for higher performance

ref