8-input NAND in a PDIP14 — what it is and where it fits
The Texas Instruments 74LS30PC is an 8-input NAND gate in a PDIP14 package, part of the 74LS low-power Schottky TTL family. It implements the logic function Y = ¬(A·B·C·D·E·F·G·H) — eight inputs collapse to a single active-low output. This is a through-hole part, so it is one you can swap on site with a standard IC extractor and a socket — no hot-air station, no reflow profile. The PDIP14 body is wide enough that pin 1 orientation is obvious from the notch and dot, even under a desk lamp.
Active lifecycle, but watch the RoHS flag
One catch: it is marked RoHS non-compliant. If your BOM requires RoHS-10/REACH compliance for the end market (CE marking, EU market access), this part will not pass a restricted-materials audit. The lead content in the solder-dip finish is the likely blocker.
Sourcing posture and what to expect
Because it is active, the 74LS30PC can be sourced through authorized TI distribution as well as independent channels. For a repair kit or a low-volume production run, this is a straightforward part to source. No need to hunt surplus or worry about date-code freshness — current production means the parts coming off the line are the latest revision.