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MC78T12 12V 3A Voltage Regulator
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The MC78T12 is a positive linear voltage regulator in a TO-220 package, providing a fixed 12 V output at up to 3 A. It accepts an input voltage range of 12–3...
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The MC78T12 is a positive linear voltage regulator in a TO-220 package, providing a fixed 12 V output at up to 3 A. It accepts an input voltage range of 12–35 V and includes built-in thermal overload and short-circuit protection, making it a reliable choice for powering 12 V circuits from higher-voltage supplies.
Key Features
- Fixed 12 V Output – Regulated output of 11.5–12.5 V
- 3 A Maximum Current – Suitable for moderate-load applications
- TO-220 Package – Through-hole mounting with heatsink tab
- Built-in Protection – Thermal overload and short-circuit protection
Specifications
- Regulator Type – Positive linear, monolithic
- Output Voltage – 11.5–12.5 V (nominal 12 V)
- Maximum Output Current – 3 A
- Input Voltage Range – 12–35 V
- Package – TO-220 (3-pin, through-hole)
- Pin Pitch – 2.54 mm
- Lead Diameter – 0.8 mm
- Max Operating Temperature – 125 °C
Ideal For
- Regulated 12 V power supplies
- Powering motors, relays, and LED strips from higher-voltage sources
- Bench power supply projects
Package Contents
- 1× MC78T12 voltage regulator (TO-220)
Jargon buster
Plain-language definitions for the technical terms used above.
- LED
- A light-emitting diode is a small electronic component that lights up when current flows through it in the correct direction. In this kit, LEDs create the flashing effect, so polarity and correct soldering matter for the project to work.
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