Field wrenches in a case with legs?

Question

Do it yourself

Advise replacing the field keys in this scheme dl.dropboxusercontent.com/u/22991016/03_BigDigit.png

in the original irlml0040 , I have irlml0060 , but they are a couple of millimeters in size and in order to unsolder them without a collective farm, you will still need to find mini-boards in tin with markings on which they are soldered and then sculpted. Cumbersome, hemorrhoids and not at all visually. And visibility is important, as a “demonstration stand” is being assembled for younger students. I unsolder everything on a breadboard with holes.
In general, I would really like to find an alternative at a normal price with the same characteristics, but in a case with legs, so that you can solder it without perversions.
Thanks in advance.

Answer 1

For your circuit, 0.2A per eye should be enough, if the indicator is not quite gigantic;) ...
And then 2N7000 for a ruble kilo;) ...

Answer 2

But, in order to be calm, you need to know the current of the segment ... Well, or at least give the brand, if you yourself can’t find the Datasheet indicator;) ...

Answer 3

And the source-drain is definitely not beguiled? "S" and "D" according to your picture ...

Answer 4

By the way, didn’t you mean such a “wave”:

If “yes”, then tell the teacher that the Schottky diode is depicted so occasionally.

Answer 5

There should be a minus on “S”, and “G” is generally a shutter. The gate is controlled. Try to close “G” to “S” in the correct switching option - will it go out?

Answer 6

Well, after all, there are decoders with a common anode, and there are with a common cathode.

Not "with" but "for"... You want one that gives a "+" on the output where it wants to light the segment.

Answer 7

Well, or so to search ...

Answer 8

So what is the current per segment?
With regards to analogues - in the second answer ...

Answer 9

almost any transistor will do.
are inexpensive.
I personally use IRLU024N, because were in a nearby store. more expensive, but the margin for all characteristics is 10-100 times.
you can solder from motherboards, also almost any will do.

Answer 10

Good luck in learning :)