# What are my prototyping options when working with smt devices?

I have been working on a project which will allow me to learn how to charge Li-ion batteries.

I recently purchased some simple PMIC's made by Texas Instruments. I received them the other day and realized I made a mistake in my purchase, the PMIC's were sot-23 smt packages.

I don't have much soldering experience, and most of my experience with electronics is with through-hole bread-boarding and through hole soldering. I hear a lot that smt is the way to go if your serious about electronics, so I don't know if I should consider returning them and sticking to what I know, or taking the leap into smt now.

Here are some things that I have to consider:

• I already have a breadboard power supply, which I intended to use during the prototyping phase for charging. I don't know enough about SMT to know if I can still use it in such applications.

• I can return the smt PMIC's, but the through-hole PMIC options I have found so far cost three times as much as the smt alternatives. And after reviewing some datasheets, I have found them to be way more complicated than whats actually necessary for my needs, I would be going from 6 pins to 16, with a bunch of added features I didn't need to deal with just to learn how to charge my first lithium battery.

• I have reviewed the datasheet for the smt's I purchased about three times now, and it requires less than a half-dozen supportive components, most I had already or have purchased, such as NTC resistors.

Based on all that, I would at least like to know what are my prototyping options when dealing with smt devices, so that way I can make an intelligent decision on whether keeping them is even practical at this moment.

I'm assuming the four breadboards I have laying around are useless, so what can I use to setup and test circuits with smt components?

• #UPDATE: Looked at another post and found out about SMT-to-through hole adapters. Seems very compelling right now. – Iam Pyre Jan 28 '18 at 19:31
• learn.adafruit.com/smt-prototyping-using-breakout-pcbs/overview – jonk Jan 28 '18 at 20:55
• You don't need any adapter for SOT-23. You can solder them directly on your perforated prototype board. (see my answer) HTH. – Fredled Jan 28 '18 at 21:37

• That's pretty much what I also use! I build them myself, though. I just get boxes full of the little circuit cards from China for ~$0 each. And then I also buy strips of break-off pins from China again for ~$0 each. Then I spend \$100 each of my time sitting down to solder them up! ;) But I'm a hobbyist. I do this because I like doing it. Oh, well. +1 (Oh... get boards with through-holes at the perimeter. It's not so good otherwise.) – jonk Jan 28 '18 at 20:46