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I'm assuming a) that the leakage at 5V is less than at 50V; and b) the
actual part received is not at the maximum point; other than that, all
bets are off. That said, I'd wager that the 1N4001's leakage is at
least 10-20x that of a 1N4148, possibly more. Also, if the 1N4001
happens to leak say, 4.5uA at 5V, it would still pass its specifications
-- probably won't be that bad, but a manufacturer would not consider the
part 'defective.'
A 1N4001 is designed to be a rectifier diode; most of the time, I see
them in power supplies. The 1N4148 is designed as a fast signal-level
switch, which is a closer match to this application.
Just my opinion.
Regards,
-BW
Bruce Wahler
Ashby Solutions.com™
[email protected]
http://music.ashbysolutions.com
http://halfmoon-switch.com
http://ashboys.com
978.597.7008
On 9/6/2018 5:40 PM, [email protected] [YamahaDX] wrote:
>
> Where are you getting the 2uA figure from, Bruce?
>
> The 1N4001-4009 series datasheet I've found only quotes 10uA at
> maximum reverse voltage, but that's 50V for a 1N4001.
>
> Unfortunately, they don't give comparable figures, because they're
> meant for different purposes. If you look at the figures for them
> getting hot, and near their reverse voltage limits, they're in the
> same ball park.
>
> I couldn't find figures for the 1N4001 for a low reverse voltage.
> It's probably a little bit higher than the 1N4148, but 2uA at 2-3V
> doesn't seem right.
>
> - Andy
>
>