开云体育

Has anyone used canned air (R134a, er=1.0113, plus a bittering agent) to backfill sealed HP modules? I don't have any dry nitrogen on hand, canned air doesn't seem to kill the performance, and it seems likely that it's better than nothing. Since the failure modes are slow (condensation, oxidation) I thought I'd ask around to see if anyone has any hard won lessons they'd like to share.