7812CT 12V Linear Voltage Regulator (TO-220) - 5 Pack

7812CT 12V Linear Voltage Regulator (TO-220) – 5 Pack – Technical Specifications:

Module Type – Fixed Linear Voltage Regulator
Output Voltage – 12V DC (Fixed)
Input Voltage – 14V to 27V DC (Recommended range)
Output Current – Up to 1A (with proper heatsinking)
Voltage Dropout – ~2V (typical)
Regulation Type – Positive Voltage Regulator
Package Type – TO-220
Quantity – 5 Units per Pack
Output Tolerance – ±4%
Protection Features – Thermal Shutdown, Short-Circuit Protection, Safe Area Protection
Operating Temperature – 0°C to +125°C (junction)
Mounting Type – Through-Hole
Pin Configuration – IN (Input), GND (Ground), OUT (Output)
Series – 78xx Standard Linear Regulator Family
Compatible Applications – Relay modules, fans, camera systems, 12V LED strips, embedded systems

Handy Tips for Using the 7812CT Voltage Regulator (5 Pack):

1: This 12V regulator requires an input voltage at least ~2V higher than the output — 14V minimum, with 15–18V recommended for stable regulation under load.

2: As a linear regulator it dissipates excess voltage as heat — dropping from 18V to 12V at 1A produces significant heat, so always fit a heatsink for sustained current draws.

3: Always include input (~0.33µF) and output (~0.1–1µF) capacitors close to the IC pins to suppress noise and prevent oscillation.

4: Each regulator in this 5-pack can be used independently across multiple projects — handy for repairs, prototyping, or stocking spares of this commonly used voltage.

5: A very common rail for relay modules, fans, camera systems, and 12V LED strips when stepping down from a higher unregulated supply.