It is numbered according to the ISO/IEC 7812. It require an issuer identification number (IIN) to operate in international, interindustry and/or intra-industry interchange".
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The 7812 voltage regulator is a three terminal, single IC, +12V
regulator.
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7.812 × 103
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The Young and the Restless - 1973 1-7812 was released on: