Miniature Jumper - Electronic Circuits Projects Diagrams Free

2camjohn · 7th March 2005, 01:56 PM

I need a single jumper that allows the user to disconnect part of my circuit.

The problem is it needs to be tiny, 0.1 inch jumpers are out of the question, they are too tall.

I can only find dip switches in 4 way..

Can anyone help?

Cheers
John

plot · 8th March 2005, 11:15 AM

http://www.digikey.com has alot of dip switches that only have 1... well... switch.

if a jumper is to big though, i'd think a dipswitch would be too.

Dean Huster · 9th March 2005, 01:11 PM

If standard 0.1" jumpers are out of the question, how can a DIP switch work? It's huge in comparison.

You need to spend more time scrapping out hard drives and interface cards on computers to scavange them for juicy parts. They do make smaller jumpers for smaller pins ... 2 or 3mm seems to be what I've seen ... and they're common on a lot of computer components. Trouble is, so much of computer circuitry is reverting to total software control that jumpers are becoming a thing of the past, so you have to stick with computers made in the 1990s.

Dean

2camjohn · 9th March 2005, 01:19 PM

Sorry I should have been more clear.

A 0.1 inch jumper is too big because it is so tall. Low profile metric dip switches are much better but as you say they take up alot of room, especially a 4 way.

I have a couple of ancient computers here, I will take a look inside them when i get chance.

Thanks for your input,
John

Dean Huster · 12th March 2005, 02:21 AM

I've seen shorter jumpers for the 0.1" format in computers and have several of them. Rather than being "capped" on the end, they're are open all the way through and will work easily with shorter pins. Is this a situation where you're going to have to change jumper settings often enough to warrant removable jumpers jover square pins vs. simply soldering in a few wire jumpers, or better yet, clipping open the pre-installed wire jumpers you don't need?

Dean

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7th March 2005, 01:56 PM	#1
2camjohn	Miniature Jumper I need a single jumper that allows the user to disconnect part of my circuit. The problem is it needs to be tiny, 0.1 inch jumpers are out of the question, they are too tall. I can only find dip switches in 4 way.. Can anyone help? Cheers John __________________ The first rule of mstechca club is do not talk about mstechca club. http://www.electro-tech-online.com/s...induser&u=1245

8th March 2005, 11:15 AM	#2
plot	http://www.digikey.com has alot of dip switches that only have 1... well... switch. if a jumper is to big though, i'd think a dipswitch would be too.

9th March 2005, 01:11 PM	#3
Dean Huster	If standard 0.1" jumpers are out of the question, how can a DIP switch work? It's huge in comparison. You need to spend more time scrapping out hard drives and interface cards on computers to scavange them for juicy parts. They do make smaller jumpers for smaller pins ... 2 or 3mm seems to be what I've seen ... and they're common on a lot of computer components. Trouble is, so much of computer circuitry is reverting to total software control that jumpers are becoming a thing of the past, so you have to stick with computers made in the 1990s. Dean __________________ Dean Huster, Electronics Curmudgeon Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines). R.I.P.

9th March 2005, 01:19 PM	#4
2camjohn	Sorry I should have been more clear. A 0.1 inch jumper is too big because it is so tall. Low profile metric dip switches are much better but as you say they take up alot of room, especially a 4 way. I have a couple of ancient computers here, I will take a look inside them when i get chance. Thanks for your input, John __________________ The first rule of mstechca club is do not talk about mstechca club. http://www.electro-tech-online.com/s...induser&u=1245

12th March 2005, 02:21 AM	#5
Dean Huster	I've seen shorter jumpers for the 0.1" format in computers and have several of them. Rather than being "capped" on the end, they're are open all the way through and will work easily with shorter pins. Is this a situation where you're going to have to change jumper settings often enough to warrant removable jumpers jover square pins vs. simply soldering in a few wire jumpers, or better yet, clipping open the pre-installed wire jumpers you don't need? Dean __________________ Dean Huster, Electronics Curmudgeon Contributing Editor emeritus, "Q & A", of the former "Poptronics" magazine (formerly "Popular Electronics" and "Electronics Now" magazines). R.I.P.