L7805 L7812 Voltage Regulator Module – 5V / 12V DC Output
L7805 L7812 Voltage Regulator Module – 5V / 12V DC Output
L7805 / L7812 Step-Down Voltage Regulator Power Supply Module
Get rock-solid, regulated DC output for your electronics projects with this compact L7805 / L7812 Voltage Regulator Board. Available in two output options — 5V (L7805) and 12V (L7812) — this module uses a linear voltage regulator IC to deliver clean, stable power to microcontrollers, sensors, industrial control boards, and DIY electronics builds. Made in China.
Key Features
- Dual Specification Options: Choose between L7805 (5V output) or L7812 (12V output) to match your exact project requirements. Linear regulation ensures a precise, stable output voltage.
- Built-In Heat Sink: The onboard heat sink dissipates heat efficiently, allowing continuous high-current operation without thermal shutdown — extending module reliability and lifespan.
- Enhanced Filter Circuit: Large-capacity electrolytic capacitors and dedicated filter components suppress input/output noise and interference, delivering pure voltage to protect sensitive downstream components.
- Solder-Free Spring Terminals: Spring-type screw terminals make wiring fast and tool-free — no soldering required. Ideal for rapid prototyping, on-site debugging, and field maintenance.
- Compact PCB with Mounting Holes: The miniaturized 4.5 × 2 cm PCB fits easily into enclosures and panels. Pre-drilled mounting holes make permanent installation straightforward.
- TTL-Compatible Interface: Communication interface: TTL, compatible with most common microcontroller platforms.
Specifications
| Output Voltage | 5V (L7805) or 12V (L7812) |
| Interface | TTL |
| Package Type | Surface Mount |
| PCB Size | Approx. 4.5 × 2 cm (1.77 × 0.79 in) |
| Package Includes | 1 × Voltage Regulator Module |
| Country of Origin | Made in China |
Who Is This For?
This module is perfect for electronics hobbyists, engineers, and makers who need a reliable, drop-in power regulation solution for single-board computers, Arduino/MCU projects, small industrial control systems, robotics, and DIY automation setups.
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Frequently Asked Questions
Q: What is the difference between the L7805 and L7812 voltage regulator modules?
A: The L7805 module outputs a regulated 5V DC, making it ideal for powering microcontrollers, logic circuits, and USB-standard devices. The L7812 module outputs a regulated 12V DC, suited for motors, relays, and other 12V electronics. Both use a linear regulator IC for stable, accurate output.
Q: Do I need to solder wires to use this voltage regulator board?
A: No soldering is required. The module features spring-type screw terminals that allow you to connect input and output wires quickly and securely without any soldering tools, making it ideal for prototyping and field use.
Q: What input voltage range does this module support?
A: While the product listing specifies output at 5V or 12V, standard L7805/L7812 linear regulators typically require an input voltage at least 2–3V higher than the output (e.g., ~7–8V+ for the L7805, ~14–15V+ for the L7812). Always ensure your input supply exceeds the output voltage sufficiently for stable regulation.
Q: Is this module suitable for Arduino or Raspberry Pi projects?
A: Yes. The compact PCB size, TTL-compatible interface, and stable 5V output (L7805 variant) make this module well-suited for powering Arduino boards, Raspberry Pi accessories, sensors, and other microcontroller-based projects.