I've been using Arduinos for a little over 8 months and so far my experience with them has been great and I haven't had a reason to post on the forum until now.
I have a project I'm working on that will essentially control a 12V 1W LED using one of the Arduino's PWM pins with an N-Channel MOSFET (RFP12N10L). While this seems simple enough I've managed to break the gate on two MOSFETs attempting this simple setup and I'm at a lost as to why. By break I mean the gate remains on and never shuts off no matter what I do. Hopefully someone here can help me figure out where I'm going wrong so I don't blow the remaining few MOSFETS I have.
Here's a diagram of my target environment.
My test environment in which the gates became broke was a 5V 1A source with a standard 5v 20mA LED and a 150 ohm resistor connected to the drain from the LED.
RFP12N10L Documentation: https://www.fairchildsemi.com/datasheets/RF/RFP12N10L.pdf
The LED I'll eventually be using will be similar to one of these http://www.ebay.com/itm/121490605226 if that helps.
Any constructive feedback and/or suggestions would be greatly appreciated.
P.S. I'm a very visual learner so if my diagram is wrong please provide me with a altered diagram. That would help me out a lot.