LM7812 12V Voltage Regulator IC (TO-220 Package)

The LM7812 12V Voltage Regulator IC is a three-terminal positive voltage regulator that provides a stable 12V DC output from a higher DC input voltage. It is widely used in power supplies, battery chargers, audio amplifiers, robotics, industrial electronics, automotive projects, and DIY circuits. The LM7812 includes built-in thermal overload protection, short-circuit protection, and safe operating area protection for reliable and stable performance.

Features

• Full Name: LM7812 12V Positive Voltage Regulator IC
• Fixed 12V regulated output
• Output current up to 1A (with proper heat sink)
• Built-in thermal overload protection
• Short-circuit protection
• Excellent line and load regulation
• Low output noise
• TO-220 package for easy mounting
• Simple three-pin design
• Reliable and long-lasting performance

Specifications

Pin Configuration

When viewed from the front (text facing you, pins downward):

Note: The metal tab is internally connected to Ground (GND).

Applications / Uses

• 12V regulated power supplies
• Audio amplifier circuits
• Robotics and automation
• Arduino and microcontroller power supplies
• Industrial control systems
• Automotive electronics
• LED lighting projects
• Battery charging circuits
• DIY electronics
• Educational projects

Advantages

• Stable 12V output
• Easy to use
• Built-in protection features
• Reliable operation
• Low cost
• Widely available
• Suitable for hobby and industrial applications

Size

• Package Type: TO-220
• Body Width: Approx. 10 mm
• Body Height: Approx. 15 mm
• Overall Height (with leads): Approx. 30 mm
• Lead Pitch: 2.54 mm
• Weight: Approximately 2 g

Package Includes

• 1 × LM7812 12V Voltage Regulator IC (TO-220)

Note: The LM7812 is a linear voltage regulator, so excess input voltage is dissipated as heat. For high input voltages or output currents above 500mA, use a suitable heat sink to ensure reliable operation and prevent overheating.