Can anyone confirm that these two are equivalent? As far as I am aware, the 7812 is a positive voltage regulator and the "P" in 7812P stands for positive.
Generic 7812 voltage regulator equivalent to KIA 7812P?
Nov 23, 2007
6 Replies
The KIA (Korea Electronics Company) 7812P is a 12 volt positive 3 terminal linear IC voltage regulator.
the 78xx is pos, 79xx is neg.. types. the P most likely indicates a style of the case.
78lxx indicates a low power types like a 100 ma.. etc.. hope that helped.
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Yup - the '78' seems to be positive - '79' negative followed by the voltage. Dunno why. It will be logical to someone.
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Jamie-
My guess would be that the P package would be the plastic tab-mounted version, but that may vary between manufacturers.
I'm sure KIA is a good company with good products, but isn't their 7812P really a "generic" version of the Fairchild ua7812?
Fred
They're going to be ELECTRICALLY equivalent, but the 'P' suffix indicates some package option; the 7812 and similar chips are generic, but the packages include TO-3, TO-220, TO-202, TO-5, TO-92 and probably others (all LOOK different, and some have heat-sink differences as well).
The commonest '7812' is TO-220 with an uninsulated (live connected) metal heatsink tab. uA7812CKC is a typical full part number...
P probably indicates case style. Most of the 78xx and LM340-Txx regulators are generically interchangeable. As long as it's not one of the 4-pin varieties, which have an extra on/off pin and are harder to find.
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