IRFA V N-channel A-FET / Substitute of IRF FEATURES. Avalanche Rugged Technology Rugged Gate Oxide Technology Lower Input Capacitance. THE PRODUCT DESCRIBED HEREIN AND THIS DATASHEET ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT ? IRFA datasheet, IRFA pdf, IRFA data sheet, datasheet, data sheet, pdf , Fairchild Semiconductor, N-CHANNEL POWER MOSFET.

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As there is an LED in the source to ground i presumethere is already a voltage drop, keeping the source above ground. It contains an opto-isolator and does all the gate driving.

IRFA Hoja de datos ( Datasheet PDF ) – Advanced Power MOSFET

However it has a very low Rdson. Perhaps one of the wires is corrupt. The datasheet indicates max Vgs 4V but the irrf530a shows that at 5V the mosfet can deliver current way above my requirement Thank you for your help. Do you have the break out board in the drain or the source? Checking the datasheet is always a good suggestion.

My hairs are starting to turn gray: At 10 volt it is 4mohm and the fet can take 45 amp, but at 4.

Or for a power rectifier? Apologies foe my late reply. Using the transistor to drive the gate with higher voltage solved the problem.


This will need a good heatsink if the load is on for more than a second or two, but it is no issue if it gets millisecond pulses every few seconds. If it is not datasheeg, the gate will not get any voltage from the 12 V power source.

Using MOSFETS with TTL levels (5 Volt and 3.3 Volt)

The circuit should be robust enough to support the load during a few minutes. That indeed is odd and I start to wonder if it is the IRL that is shutting down or something else.

Please bear in mind that eventhough a logic level FET, the IRLN is not at its lowest resistance at 5 Volt, but it shld be low enough to make 10 amp no problem. Do you have any idea why is the mosfet not working properly and letting the 12v works on the led strip? Excellent catasheet, was very illuminating! Then indeed the FET will open but it cannot go above 5Volt at the source, because then it will close again as the VGStsh is around Thanks for pointing out irf5330a series.

They iff530a good switches,but you dont want to use them as resistors.

My dilemma is am new to this field so is there any other better datasheeet MOSFET for high voltage switching application and driver for the same. But in reality you dont need that formula as it mainly has to do with the range wherein the FET DrainSource acts as a pure resistor.


Realise though that it is an inverting circuit. OK I try again: Yes you can make it Ohm. Thank you for your answer.

You need a logic fet for that such as the IRL series. That 52 mOhms at 2.

PDF IRF530A Datasheet ( Hoja de datos )

In general you want a MOSFET that has a low Rdson and switches fast at the available triggervoltage 5volt with ttl and ofcourse can take the voltage and current it will be exposed to.

I just touched the gate pin to turn motor on.

Like the diagram at the top of the page here. It shows the same behaviour when I use 3. I had a IRF Mosfet but now i understand why it became very hot. I want to put around 10A of current trough a coil to make ddatasheet partical accelerator.

By continuing to use this website, you agree to their use. IRFZ44, and you want to satasheet somewhat higher voltages i. Another thing to beware of in datasheets is Vthresh threshhold voltage.