Screw terminals that reliably fit in protoboards?

Other Hardware General Electronics
1

Does anyone have a source for screw terminal blocks that will reliably fit in 0.1" solderable protoboards/perfboards??

I have accumulated a number of blocks that have pins on 0.2"/5.08mm centers, but the pins themselves are too large to fit the holes in perfboards.

Much obliged if anyone can direct me to a source or part #.

2

I seem to remember these have worked quite well for me in the past.

3

I just drill the holes in the board a bit larger.

4

Digikey has lots to choose from. For example:

http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=277-1278-ND

5

These as well
http://www.dipmicro.com/store/DG126-2P
http://www.dipmicro.com/store/DG126-3P

Mix & match, I think they slide together for longer strings.
I used them here
http://arduino.cc/forum/index.php/topic,56567.0.html

6

justjed:
Digikey has lots to choose from. For example:

Electronic Components and Parts Search | DigiKey Electronics

I understand 0.2" blocks are easy to come by. But as I began with, the issue is that many 0.2" blocks have pins too large to fit in protoboard holes.

Are you saying that the Phoenix blocks definitely have pins that will fit?

7

The dipmicro ones do for sure! The picture shows it.

You'll have to check the Phoenix drawings for the others. The newer pins are a little larger than what's in the library, needing a 1.3mm drill hole, on parts that had 2.54mm spaced pins.
See reply #166 here. The 4 large white blocks are phoenix screw terminals
5-pin screw term, 3.5mm,Digikey 277-1723-ND 277-1723-ND
8-pin screw term, 3.5mm, Digikey 277-1725-ND 277-1733-ND
(X5 is now 16 pos) 277-1725-ND
4-pin screw term, 3.5mm, Digikey 277-1860-ND 277-1860-ND

This one is for power, needs a 1.4mm hole
2-pin screw term, 5mm, Digikey 277-1667-ND 277-1667-ND

http://arduino.cc/forum/index.php/topic,61126.165.html (page 12)

8

Thanks Crossroads - the DPMicro ones are listed as 'generic' manufacturer - which suggests they could change over time. I'd be more comfortable with a manufacturer part # I could order, but I may go with those.

9

I'd go with the Phoenix part #s from Digikey - they are very nice parts.

10

From that web page:

Pitch 0.100" (2.54mm)

Also on that page is a link to a PDF datasheet. You might consult that.