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4hv.org :: Forums :: General Science and Electronics
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Maybe dead mosfet

Move Thread LAN_403
Andy
Thu Oct 10 2013, 02:35AM
Andy Registered Member #4266 Joined: Fri Dec 16 2011, 03:15AM
Location:
Posts: 874
I thought the center pin was the gate pin, but its on the left side, with drain in the middle, all fixed :)
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Avi
Fri Oct 11 2013, 02:54PM
Avi Registered Member #580 Joined: Mon Mar 12 2007, 03:17PM
Location: Melbourne, Australia
Posts: 410
always is (in all mosfets ive seen)
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the_anomaly
Fri Oct 11 2013, 05:00PM
the_anomaly Registered Member #19 Joined: Thu Feb 02 2006, 03:19PM
Location: Jacksonville, FL
Posts: 168
I thought so too until I ran across PSMN9R0 in an LFPAK from NXP.



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Andy
Fri Oct 11 2013, 05:34PM
Andy Registered Member #4266 Joined: Fri Dec 16 2011, 03:15AM
Location:
Posts: 874
I've also fried some track on the breadboard, which wouldn't help with finding problems. I think 3-4.5amp or 24volt is to much for the tracks.
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Patrick
Fri Oct 11 2013, 11:25PM
Patrick Registered Member #2431 Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
when i was a young kid, i built a CW multiplier on a breadboard and at 700 to 800 volts (0.1 inch pin to pin), apparently breadboards deflagrate with sparks and flames. (blew a 20 amp 120Vac circuit breaker too!)

you dont want to push power through a breadboard, youll want specific wires solderded for that purpose, but all your signal and the many tiny components, thats what breadboards are good for.
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Chris Cristini
Fri Oct 11 2013, 11:36PM
Chris Cristini Registered Member #1749 Joined: Fri Oct 10 2008, 02:04AM
Location: Claremont New Hampshire
Posts: 497
I just used a bread board for a 555 Driver and where the fet was it turned brown. I have had very little issues with de soldering all components off of used circuit boards using a Grill on low it gets all of the solder hot enough with out catching the board on fire.
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Avi
Mon Oct 14 2013, 01:52PM
Avi Registered Member #580 Joined: Mon Mar 12 2007, 03:17PM
Location: Melbourne, Australia
Posts: 410
the_anomaly wrote ...

I thought so too until I ran across PSMN9R0 in an LFPAK from NXP.
yeh well, i did mean 3 pin through hole ones...
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