Thin film Hall sensor

Does it have to be that one? Try typing 'hall' into the Findchips search engine--boatloads of them come up.

Cheers

Phil Hobbs

I would like a thin film device of that size, yes. It's for another one of my experiments. It's all related to my earlier question of turning a hard drive into a lapping machine.

Why don't you want to sign their EUA?

Best regards, Spehro Pefhany

Whats an EAU ??

EAU, my mistake.

Estimated Annual Usage. It's not something you sign. It's just that they are saying "we won't deal with little pipsqueaks who won't buy at least 10000 a year".

Estimated Annual Usage, hey I got it right the first time... :)

You're thinking End User Agreement?

Tell them you're a consultant, designing for a big instrument company that you can't name under NDA, that it could be a production application, and ask for 10 samples.

John

Heh. I like that. Too late though, I must be on their hobbyist/hacker shitlist. Anyone know how I can make Indium Arsenide at home? Maybe in the same pressure cooker I put paint remover in?

Yeah, got that on the brain, plus I was allowing for possible swapping of acronym letters between French and English (eg. HRDC == DRHC).

Well, you can do as John suggests. There are some total a**holes who will never ever pay for a part who ask for free samples- that's not you. Isn't there some way this could turn into a product? How sucessful could that product be?

Best regards, Spehro Pefhany

I'm the opposite. I never ask for samples (though they're often sent long before I can use them). It's almost always easier to buy them (if they're not in-stock somewhere they don't get designed in). I can buy engineering quantities on cut tape and not have to deal with production's whining. ;-)

Plus it tends to end up more expensive if you're in a major city because the sales dudes use the sample request to trigger visits. You used to be able to get useful stuff (eg. printed catalogs) from such visits, but now that (almost) everything is on-line, it's typically just annoying.

Best regards, Spehro Pefhany

EAU

ips

"The Journey is the reward"

eff.com

Oh I'd pay a reasonable amount for a dozen HS-100s. Maybe up to 5$ each. I don't have a reference point for the cost of such a thing, though. Even if indium is expensive, it *is* a thin film ,after all.

There's no way this can turn into a product. It's a hobby thing.

Why can't you use a more common type like the 3 lead axial varieties?

I know you're looking to save space how ever, you can do as I did to a project years ago so that I could squeeze a transistor into a tight spot.. I notched a hole in the PC board and laid the component body in that hole with the connections at the edge. I can't see why the same could not be done using the more common 3 lead types which many of them have a thin body.

Jamie

Because it's not going on a PCB.

I've been upfront with vendors, and told them, "Say, what are the chances you could sample me a couple of these, even though you know it's for a home project?" and they've sent me parts.

What was it that was wrong with just ordering some? Some kind of import thing, or minimum order, or some such? Could you find a friendly Yank, who would just drop ten of them in an envelope?

Thanks, Rich

At that point, you're supposed to start whining, borderline tearfully, "But I only need ten of them, and it's for a home project, and I don't know where else to turn to just get a few of them, and I don't know what I'm going to do!" and they'll drop a handful in an envelope just to shut you up. ;-D

Good Luck! Rich

It's a BGA package. Are you planning to solder wires to it?

John

I see three or four disties, factory reps usually in tow, a week. It's not a big deal and sometimes they have some great information. One we've never bought from, that I know of, brought a rep around with an optical encoder that may save the boss $30-$50K a year. It was worth the 30 minutes or so.