78M12 Positive Linear Voltage Regulator TO-252

78M12 is a fixed 12V Positive Linear Voltage Regulator in a TO-252 surface-mount package. It is designed for high-current applications and provides stable 12V output with thermal shutdown and current limit protections. Ideal for powering logic circuits, analog components, and general-purpose electronics requiring regulated +12V.

Key Features of 78M12 Positive Linear Voltage Regulator TO-252:

• Fixed Output Voltage: Provides regulated 12V output.
• Medium Current Capability: Supports output current up to 500mA (typical).
• Internal Protections: Includes short-circuit, thermal shutdown, and overcurrent protection.
• Low Dropout Voltage: Operates efficiently with moderate input-to-output voltage differential.
• Surface-Mount Package: Compact TO-252 (DPAK) footprint ideal for modern PCBs.

Technical Specifications of 78M12 Positive Linear Voltage Regulator TO-252:

• Output Voltage: +12V (fixed)
• Input Voltage Range: 14.5V to 35V
• Output Current: Up to 0.5A
• Dropout Voltage: Typically 2V at full load
• Line Regulation: 50mV (typical)
• Load Regulation: 240mV (typical)
• Thermal Shutdown: Yes
• Short Circuit Protection: Yes

Mechanical Specifications of 78M12 Positive Linear Voltage Regulator TO-252:

• Package Type: TO-252 (DPAK) surface-mount
• Mounting: SMD for PCB reflow soldering
• Pin Count: 3 pins
• Cooling: Exposed tab for heat sinking via PCB

Pin Configuration and Pinout of 78M12 Regulator:

• Pin 1: Input (Vin)
• Pin 2: Ground (GND)
• Pin 3: Output (Vout)
• Tab: Connected to ground internally

Schematic Diagram, Connection, Wiring and Pinout:

• Connection: Connect unregulated voltage to Vin, regulated 12V from Vout, and GND to common ground.
• Capacitors: Use input (0.33µF) and output (0.1µF) capacitors for stability.
• Polarity: Ensure correct polarity or internal protection will trigger.

Datasheet of 78M12 Positive Linear Voltage Regulator TO-252:

• Download 78M12 Datasheet (PDF)

Applications of 78M12 Positive Linear Voltage Regulator TO-252:

• Embedded Systems: Supplies regulated 12V to microcontrollers and digital logic ICs.
• Analog Circuits: Powers op-amps, ADCs, and audio processing modules.
• Battery-Powered Projects: Regulates voltage from 15V battery packs.
• Industrial Control: Provides stable voltage in harsh environments.
• Consumer Electronics: Used in DVD players, routers, modems, and game consoles.

Equivalent Models for 78M12 TO-252 Regulator:

• LM7812: Standard TO-220 12V regulator
• UA7812: Drop-in compatible 12V regulator
• AMS1117-12: 12V low-profile SMD regulator
• KA7812: Compatible 12V regulator with similar specs

Package Includes:

• 1 x 78M12 Positive Linear Voltage Regulator TO-252