So maybe i'm looking wrong, i pay 16€ shipped for a pack of 100 p-mosfets like those with -5v Vgs , 25amp, 30volt. I pay almost the double for thre N kind with same specifics.
Can you link to the packs of mosfets? Or at least provide the part numbers? It may be that the P-channel ones are in SMD packages and the N-channel ones are in TO220, which tends to cost more.
I'm looking for Vgs 5v , not more not less. Almost 15amp , and obv at least 12v am i looking wrong? Could someone tell me the near-right specs? The resistence of the coil is 7ohm
If the resistance of the coil is 7 ohms and you are running them from 12V, then the steady state current will be less than 2A. The current may be higher while the solenoid is pulling in.
Noob question alert:
If a Vgs mosfet is rated Vgs = (+/-) 10 , it means it will be activated by the range -10 , 0 / 0, +10 , or it need the min and max value of -10 / +10?
If the rating is +/-10V then you must never apply more than +10V or less than -10V to the gate. To see what voltage you need to turn the mosfet fully on reliably, look at the voltage(s) at which Rds(on) is specified.