SMT oops

Other Hardware General Electronics
1

I bought a couple of these for a project:

They look nice and chunky in the picture, I should be able to solder that no problem.

Unfortunately, they are only 3mm square.

Oops.

I was thinking I'd use ordinary network cable wire (solid core) soldered (carefully! and through a magnifying glass) to each land to make legs, which could then be arranged to drop into a DIP chip holder... any better ideas? I'm a bit concerned about cooking the chip, should I go for a mega hot tip to reduce heating times, or a low temp to avoid exceeding the max data sheet temp (260 C)?

2

I bought a couple of these for a project:

They look nice and chunky in the picture

image or link missing?

3

So it is.... I definitely pasted it in :frowning:

Trying again: http://uk.farnell.com/jsp/search/productdetail.jsp?SKU=1971743

4

Forget using solid core network cable, you'll just break off the pads!

Use some 0,1 or 0,15mm magnet wire, that is soft enough that you won't rip off the pads when arranging the connections.

// Per.

5

Keep in mind that the 260°C is for the reflow oven where the entire package is subjected to that heat.

There's a reason why hobby-vendors supply these on breakout boards.

6

I've ordered some 175oC solder paste, and some thin wire.... I will either try with the heat gun (to solder all leads at the same time), or the iron for a very brief moment, hopefully the low melting temp + my smallest bit will be good enough.

Agree about the breakout boards, I'm too cheapskate to buy them.

7

AdeV:
Agree about the breakout boards, I'm too cheapskate to buy them.

Personally, my time is worth something. I wouldn't want to spend 2-3 hours trying to solder to a chip that I might ultimately burn up. Factor in time and frustatio, you'll find that breakout boards can be an awesome value.

8

Id suggest 30 gauge stranded wire, it'll be a pain and how are you gonna mount that now?