http://www.mouser.com/psearch.cfm?keyword=1n5821&MaxPerPage=25&OpType=and&CFID=447663&CFTOKEN=39075127
http://www.digikey.com/scripts/US/DKSUS.dll?Detail?Ref=39625&Row=4135
If you are going to use any diodes to run two battery
packs on a Rx, get & use schottky
barrier diodes. A normal rectifier diode has a voltage
drop from 0.95 volts to 1.25 volts.
And if you use a schottky diode, their voltage drop is
0.35 v to 0.7v.. For a 1N5821 it's
(Vf 0.40V @ If 3.0A Prv 30 V).
The schottky diodes are use across the elec. motors
on cars the don't have reverse. They
suppress the reverse emf the can burn out speed controllers.
The cathode or band end is
hooked to the plus side of the motor & the other
end goes to the minus side of the motor.
The Capacitors that are add to the motor to suppress
RFI should be not bigger than 0.1 mf.
With the high frequency speed controllers using bigger
caps. can waste a lot of power in
the caps. Using 1.0 mf or bigger could over heat
or burn out the controller. You need three
caps., one across the plus and minus of the motor. One
from the plus to the case of the
motor. One from the minus to the case.
One more tip for winch owners, if you put a big diode
across the winch motor you can
cut down the arcing that welds the solenoids contacts.
C&H Sales 800-325-9465 has
or did have some dual schottky diodes 200 Amp Prv
160 V Stock # PD9851 for $3.50
That would work good.
Howard Rudy
Salt Lake City, Ut.
