IRL 55V Single N-channel HexFET Power MOSFET in a TOAB Package. Logic-Level Gate Drive Advanced Process Technology Ultra Low. Infineon IRL MOSFET are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for Infineon IRL MOSFET. IRL Overview. Buy online. Data Sheet – IRLEN. | pdf | KB. 55V Single N-Channel HEXFET Power MOSFET in a TOAB package.

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IRLs are inexpensive, but will have a larger Rds on than the newer, more expensive parts. Using a small value R in the gate ckt is usually a good idea.

IRL Data Sheet ( KB, EN)

No, I don’t answer questions sent in private messages but I do accept thank-you notes And how to calculate or which data should i look to know at which voltage is FET fully open? Ok, i think i understand it now. Avoid this confusion by using “on” and “off”! Daasheet can i calculate maximum PWM frequency for stable running? MarkT Brattain Member Posts: Higher voltage means lover resistance.

How is better or datasheett

Hello, i am looking for some widely used FET which is fully open at 5V. Always ignore Vthr in datasheets for switching applications, its of no use and causes a lot of confusion Good to also have a large value R between the gate and gnd to hold the Mosfet off in case the input is floating.


You might be interested in an ebay offering that another forum member found recently, but the sellers seems to be running low, only 4 more sets of 10 available.

IRL2505 Datasheet

Whether that happens at the Rds on measurement point is another question! If i am running it from Arduino it should be fully open at 5V.

I wouldn’t expect to be able to run them at their 12 amp max rating without some serious heatsinking, but for up to a couple of amps or so you can’t beat the 20 cent each cost. Up till now i used IRL but is quite expensive and i can’t get them from our local electro shop i had to order them from Farnell.

IRL datasheet,datasheets manu Page:1==Power MOSFET==[IRF] pdf datenblatt – –

If you need fast PWM though you’ll need a MOSFET driver chip to boost the current to the gate otherwise the capacitance limits the speed of switching leading to large switching losses – PWM at 10kHz ideally wants switching times to be sub-microsecond, for instance, to keep switching losses sensible.

Is that kind of understanding correct? Voltage on gate change resistance of FET but it’s never zero. FET’s do become “fully on”, generally Rds on is just the parasitic resistance of the contacts and bulk silicon. Shouldn’t matter, if the currents aren’t too high.


If it is near to zero that’s mean that it is turned ON, if i can say it that way. What is man’s best friend? V ds – drain to source url2505 maximum voltage for supplying motor for example V gs – gate to source means maximum voltage for driving FET Is that correct?

This is confusing if you are new – its the opposite from taps and valves used for fluids! Previously i read this topic http: Generally a ohm gate resistor will protect the Arduino pin when connected to a high current MOSFET they can have many nF of gate capacitance, the resistor means the current rating for the Arduino pin won’t be exceeded during switching.

If i would control them with microcontroller it should be fully open if datashewt use “digitalWrite HIGH” dstasheet.

If i am planning to drive 12V motor with mA current consumption with this fet, i can understand this informations that way: Thank you for quick response. Can you suggest some cheaper and widely used alternative?