LM339D

If it's getting hot, might be an error in the circuit design. Can you post a circuit somewhere ?. LM339 are usully pretty bulletproof.

Any old 339 with the same package and size should do, not critical, so why buy > 1 ?.

Chris

Big issues with counterfeits and reject bin salvaged parts when you buy from unauthorized sources.

Why not go to a broad-line distributor like Mouser, Newark, Element-19 or the like. They may not be as cheap as E-bay, but there's a much better chance that what they sell you will be what you ordered and will work as it was designed to.

And the LM339 is a very cheap chip.

We have hundreds of 339s in stock, dips and SO14s. Where are you?

John Larkin Highland Tech Glen Canyon Design Center Lunatic Fringe Electronics

Western PA.

Remove nospam to drop me an email.

For LM339D, there are 36 listings for sale in the USA on eBay:

When purchasing single items or very small quantities, the vendors usually charge more to cover their shipping and handling costs. It's not unusual to find a single chip at for $10 (including shipping) or

Sort the eBay listings by price plus shipping and you'll see how it works.

I sent you an email but it may have not worked. Outlook is such garbage.

John Larkin Highland Tech Glen Canyon Design Center Lunatic Fringe Electronics

Nope, nothing.

I told the seller I bid on for (40) units I really dont need (40), hes not accepted my offer so far.

But if you wanna make contact with me on Ebay this is my spot:

Why not buy them from Digikey like the rest of us?

Cheers

Phil Hobbs

If you have a pile of e-waste circuit boards, you can almost certainly find one in there quicker than you can get one delivered. If you can't find a LM339 you can probably find two LM393. There is usually one in a PC power supply, for example.