IC 78L12AC Standard Regulator 12 Volt 0.14 Amp TO-92

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  • Jameco Part no.: 51203
  • Manufacturer: Major Brands
  • Manufacturer no.: 78L12AC
  • Jameco Catalog
  • This item is discontinued and is not
    recommended for new designs.
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Standard Regulator 12 Volt 0.14Amp 3 -Pin


The LM78LXX series of three terminal positive regulators is available with several fixed output voltages making them useful in a wide range of applications. When used as a zener diode/resistor combination replacement, the LM78LXX usually results in an effective output impedance improvement of two orders of magnitude, and lower quiescent current. These regulators can provide local on card regulation, eliminating the distribution problems associated with single point regulation. The voltages available allow the LM78LXX to be used in logic systems, instrumentation, HiFi, and other solid state electronic equipment. The LM78LXX is available in the plastic TO-92 (Z) package, the plastic SO-8 (M) package and a chip sized package (8-Bump micro SMD) using National's micro SMD package technology. With adequate heat sinking the regulator can deliver 100 mA output current. Current limiting is included to limit the peak output current to a safe value. Safe area protection for the output transistors is provided to limit internal power dissipation. If internal power dissipation becomes too high for the heat sinking.


  • Output voltage tolerances of ±5% over the temperaturerange
  • Output current of 100 mA
  • Internal thermal overload protection
  • Output transistor safe area protection
  • Internal short circuit current limit
  • No external components

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  • Specification Value
    Supplier PackageTO-92
    Output TypeFixed
    Line Regulation180mV
    Load Regulation100mV
    Minimum Input Voltage13.7V
    Maximum Input Voltage35V
    Output Voltage12V
    Maximum Output Current0.14A(Typ)
    Maximum Power Dissipation750mW
    Maximum Quiescent Current5mA
    Number of Outputs1
    Typical Quiescent Current3mA
    Junction to Ambient230C/W(Typ)
    Junction to Case60C/W(Typ)
    Minimum Operating Temperature0°C
    Maximum Operating Temperature125°C
    MountingThrough Hole
    Product Width4.19mm(Max)
    Product Height5.2mm(Max)
    Product Length5.2mm(Max)
    Product TypeRegulator

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