Re: 1802 Intersil Package types.
> "Best" for what purpose?For wire-wrapping, using sockets, and for 5v operation. I was unsure
what the different package names meant; I had forgotten about ceramic
Thanks for the reply;
- sncf141r wrote:
> Can anyone tell me which "CDP1802" is the best one? I'm referring to"Best" for what purpose?
> the package types; Intersil has packages E40.6 and D40.6; PDIP and
> SBDIP; some burnt in, others not.
The black plastic package is the cheapest. But, it has a narrower range
of temperatures it can operate at, and is not hermetically sealed
(moisture can s-l-o-w-l-y leak thru the case and ruin the chip).
The ceramic packages with the metal lid are expensive, but hermetically
sealed and can operate over the entire military temperature range.
Beyond that, the chips are all the same inside. They just do different
amounts of testing. For example, if the part works at 10v, they marked
it 1802CD. If it only worked to 5v, they marked it 1802CE. Likewise for
different temperature ranges.
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