question about DIP package and SMT adapters

Good stuff:

John

The common small DIP package (20 pins or less) has lead rows on 300 mil (0.3 inch) centres. 24 pin and larger packages are usually 600 mil wide (0.6 inch), but you do sometimes see 24 pin parts in 300 mil packages.

ahhh... cool, thank you answers my questions, and thanks john for the link, those are cool

the number is the width of the chip 0.3 inches or 0.6 inches most chips with fewer than 20 pins are 0.3 inches wide (between rows of pins).

if you're going into perf board both types will fit just fine.

draw up what you want with a PCB drafting tool and send it to a PCB maker. some PCB makers offer free samples to new customers.

or glue the chip down and solder fine wires to the pins (eg:individual strands from tinned hookup flex)

Bye. Jasen

Once upon a time, i made and advertised an adaptor that would accept the following SOT packages: 23, 363, 457, 563, 753, 353, 143, 26, 25; SC-59, MiniMelf, SOD-323, SOD-123 and SOD-523. Solder the part on the board and plug the assembly into a standard

There are some PCBs made that take a "reasonable" variety of SMT parts and have workspace for breadboarding; they ain't cheap, so if you are going to do a lot, lay out your own board and have Sierra Proto Express or other decent board shop make them.

The "SkinnyDip":

:-)

Cheers! Rich

If an sm PLCC is an option, you might want to consider these. PLCC sockets are available with at least 84 leads with pins on 100 mil centers for inserting into a perf board. They are a little touchy in the bigger sizes.

Tam