Source for small qty SMT?

Angry_Radish

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I find myself in need of some surface mount capacitors, namely some 0.1uF 50v and 0.01uF 50v

I'm new to surface mount and don't have a decent list of sites I can go to for quantities around 10ea, can anyone help?

Thanks!
 
http://www.mouser.com

No minimum orders and has the sizes of the caps listed in their .pdf data sheets and many times on their .pdf catalog pages. This is criticial to make sure you get something that will fit on the pads properly.
 
I've ordered from them in the past but had forgotten they were the ones that do small orders, I keep confusing them with Digikey :)

Is there a nomenclature on sizing when it comes to surface mount components?

I'm repairing a Stern DMD controller board and though all the components seem to be the same size as other boards I've seen I suppose there could be a difference I don't know about.
 
Most of it is in millimeters, down to the 10th of a millimeter.

The diameter can be the same size or smaller than the original... same with height... You may be able to use taller ones if you have the room for it. The most important part is the lead size/spacing as you WANT them to fit properly on the pads.

If they don't fit properly on the pads you may have issues with traces that run between the pads.
 
The diameter can be the same size or smaller than the original... same with height... You may be able to use taller ones if you have the room for it. The most important part is the lead size/spacing as you WANT them to fit properly on the pads.

If they don't fit properly on the pads you may have issues with traces that run between the pads.

Uh... he's talking about ceramics, not electrolytics...

I've got some .1u 1206 and 0603s, but I don't think I've got any .01u...
 
Still applies... have you never seen a ceramic cap that had traces running between the pads? You don't want a solder pad sitting over a trace with only the green coating keeping the 2 from touching.
 
Still applies... have you never seen a ceramic cap that had traces running between the pads? You don't want a solder pad sitting over a trace with only the green coating keeping the 2 from touching.

What's diameter mean on a 1206? Height is standard... (would be an A-size tantalum if it were a 'tall' 1206).

Running traces through the keepout on SMD passives is poor practice (but sometimes you just have to do it). Get the right size component, and there's nothing else to worry about.
 
Which is what I was telling him. You just like to argue for arguments sake.

Yes, there are plenty of boards out there that have traces running between the pads. Manufacturers have been doing it for years. Just look at Galaga boards and the uncoated traces that run between pins on the upper side of the board and next to solder pads on the bottom side. It's terribly easy to bridge those traces!

If you scrape the trace by accident running between the pads on the SMT cap then you could end up with a short. It can be exacerbated by having a part that doesn't have the same physical size, shape, and distance between solder points.

Quit trying to argue like a talk radio host. You don't need to be a combative person in most of your forum posts. It gets tiring. You need a new shtick.
 
Yes, there are plenty of boards out there that have traces running between the pads. Manufacturers have been doing it for years. Just look at Galaga boards and the uncoated traces that run between pins on the upper side of the board and next to solder pads on the bottom side. It's terribly easy to bridge those traces!
Surface mount pads on galaga? Oooooooook...

1206, plenty of space for a trace...
0402, not so much...
 
No duh... it's not SMT... it's an example of a manufacturer doing something stupid FOR YEARS... Like drilling holes when making board edges and leaving the glass fibers where they can embed in your fingers.

It's easy to bridge those silly traces on the Galaga boards. It's so easy that I have to go double check with a magnifying glass to make sure I don't bridge any when installing the renew kits. I figured it would be a board that would be easy to understand for you.
 
It's easy to bridge those silly traces on the Galaga boards. It's so easy that I have to go double check with a magnifying glass to make sure I don't bridge any when installing the renew kits. I figured it would be a board that would be easy to understand for you.

Lamest
Cheapshot
Ever...

Perhaps you just need better soldering equipment/technique so you don't bridge as much...
 
You are still arguing like a right wing radio pundit. Save your crap for the politics section.
 
Go ahead and make one more post to get the last word in... ;) you know you have to. You're driven to.

As for me, I'm done with the lunacy that is talking to you.
 
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