Description
The 78M12 is a high-performance, fixed-output positive voltage regulator designed to provide a stable 12V supply from a higher input voltage. As a trusted member of the 78M series, this regulator is optimized for applications requiring up to 500mA of output current, making it an excellent choice for powering localized electronic circuits, analog sensors, and digital logic boards. It offers a compact, cost-effective, and steadfast solution for engineers and hobbyists alike.
Housed in a heat-dissipating DPAK (TO-252) surface-mount package, the 78M12 is built to handle standard operational loads efficiently. It incorporates robust internal safety features, including thermal overload protection, short-circuit current limiting, and output transistor safe-area compensation. These protections ensure that the regulator and your sensitive downstream components remain safe even under unexpected fault conditions, providing long-term reliability for your designs.
Key Features
- Stable Fixed 12V Output: Provides a precise, factory-calibrated voltage rail, eliminating the need for complex external adjustment circuitry.
- 500mA Output Capacity: Offers sufficient current for a wide range of medium-power modules, sensors, and peripherals.
- Internal Protection Suite: Features built-in thermal shutdown, short-circuit protection, and safe-area limiting for superior reliability.
- Compact DPAK (TO-252) Package: A surface-mount footprint that provides excellent thermal characteristics while saving valuable board space.
- Simple Implementation: Requires minimal external components for operation, streamlining PCB design and assembly.
Application
- Local Power Regulation: Perfect for point-of-load regulation to ensure noise-free power near sensitive analog components.
- Sensor & Control Modules: Provides a steady 12V source for industrial sensors, actuators, and localized control electronics.
- Consumer Electronics: Efficiently regulates power for home automation devices, small appliances, and entertainment modules.
- Custom Embedded Systems: A dependable “must-have” component for powering various subsystems in custom PCB designs.
- DIY Hobbyist Projects: An essential, easy-to-use regulator for custom power distribution on prototyping boards.
Package Includes
- 1 x 78M12 500mA Fixed 12V Positive Voltage Regulator IC (DPAK/TO-252)
Technical Specifications
| Parameter | Specification |
|---|---|
| Device | 78M12 |
| Output Voltage | 12V (Fixed) |
| Max Output Current | 500mA |
| Package Type | SMD TO-252 (DPAK) |
| Shipping Weight | 0.001 kg |
| Shipping Dimensions | 4 × 4 × 1 cm |
Note: Product images are shown for illustrative purposes only and may differ from the actual product. For complete technical parameters, please refer to the official device datasheet.












