Source for uPC1237 Protection IC for a Stereo Amp, 8-pin SIP?

Made by NEC in late 80s to early 90s. 8-pin SIP. Does anyone still make these or an equivalent part?

Part that I have is marked C1237HA China 0220BB10.
Thanks,
Ivan

There may be some to be found floating around in antique or gray market channels, but I’d doubt the prospects for current production; discrete linear amplifiers have become largely obsolescent, and that’s a fairly purpose-specific IC in a relatively disfavored package format.

Thanks, Rick. All true, but I just need a couple to repair an amp. I’ll check eBay, Aliexpress and other likely places.

Best,
Ivan