OK, blew one up. Gate grounded, power supply through 1K to drain.
V I
2.5 0.3 uA5 0.7
6 1.37 2
10 2011 62
12 60812.6 died
I plan to use them around 5.5 or 6, so it looks OK.
Must have blown the gate out. The available current was only 12 mA.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
What are those voltages, too high to be gate voltage. And you're supposed to keep the drain under 6 volts.
--
Thanks,
- Win
Source and gate grounded, voltage applied to drain through 1K. HiZ DVM on the drain itself.
I can't blow it up if I keep the drain under 6 volts! I might want to run at 6.5, almost exactly half the fatal voltage. Half is good.
I think I already posted some gate stuff. Here it is again:
Those numbers, and the better-than-usual-RF-part data sheet, give a pretty good picture. Nice part for $1.55.
-- John Larkin Highland Technology, Inc lunatic fringe electronics
The MiniCircuits data sheet shows the parts leveling off to a more constant-current slope (high Rds-on) at higher currents, just like most any mosfet. The knee seems to be around half a volt Vds or so, coincidentally near the gate voltage. I didn't push it too hard and maybe fry my fet.
It looked pretty constant-ohmic up to 100 mA.
If the RF boys would put more DC and time-domain stuff on their data sheets, they might sell more parts. Spice models would be great too.
-- John Larkin Highland Technology, Inc picosecond timing precision measurement jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
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