• L7812CV L7812 KA7812 MC7812 12V 1.5A TO-220 Voltage Regulator - RS413 - REES52
  • L7812CV L7812 KA7812 MC7812 12V 1.5A TO-220 Voltage Regulator - RS413 - REES52
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L7812CV 12V Voltage Regulator IC – 1.5A Linear Fixed Output | TO-220 Package | L7812 KA7812 MC7812 Compatible | For Arduino Power Supply, Robotics & DIY Electronics Projects India

L7812CV 12V Voltage Regulator IC – 1.5A Linear Fixed Output | TO-220 Package | L7812 KA7812 MC7812 Compatible | For Arduino Power Supply, Robotics & DIY Electronics Projects India

RS413

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Rs. 15.00
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Description:

The L7812CV is a three-terminal linear voltage regulator IC that provides a fixed +12V DC output with up to 1.5A load current. Designed in a TO-220 package, it’s ideal for projects requiring stable voltage supply such as Arduino, LED lighting, robotics, and amplifier circuits.

This IC ensures consistent voltage delivery even with varying input supply, making it perfect for students, makers, and professionals working on embedded systems, IoT devices, and power circuits.

🔧 Universal Brand Compatibility

The L7812 series has multiple equivalent versions with identical pinouts and performance:

  • L7812CV (STMicroelectronics)
  • KA7812 (ON Semiconductor)
  • MC7812 (Motorola)
  • LM7812 (Texas Instruments)

All are fully interchangeable, ensuring universal compatibility in DIY, industrial, and academic projects.

Specification:

Parameter Specification Details
Output Voltage +12V DC (±4%) Fixed regulated output
Output Current 1.5A continuous Requires heatsink for >500mA
Input Voltage Range 14.5V – 35V DC Ensure minimum 2V higher than output
Dropout Voltage 2 – 2.5V Typical
Quiescent Current 4.2mA – 6mA Self-consumption current
Ripple Rejection 55 – 70 dB Excellent noise suppression
Output Noise 75 µV typical Suitable for analog applications
Package TO-220 3-pin through-hole
Pin Configuration 1: Input, 2: Ground, 3: Output Standard
Thermal Shutdown  Yes Auto cut-off at 150°C
Short Circuit Protection Yes Internal current limiting
Operating Temp. 0°C – +125°C Junction temperature range

📐 Pin Configuration:

Front View (TO-220):

   _________
  |   TAB   | ← GND (connected to Pin 2)
  |_________|
   | | |
   1 2 3

Pin No. Name Function
1 INPUT (VIN) Unregulated DC input (14.5V–35V)
2 GROUND Common reference
3  OUTPUT (VOUT) Regulated +12V output

⚙️ Recommended Circuit Components:

Component Value Purpose
Input Capacitor (C1) 0.33µF – 0.47µF Stabilize input voltage
Output Capacitor (C2) 0.1µF – 100µF Smooth voltage output
Protection Diode (D1) 1N4007 Prevent reverse discharge
Heatsink  As per load current Maintain safe temperature

💡 Practical Applications:

🔸 Arduino & Microcontroller Projects

  • Provides stable 12V to power Arduino UNO, Mega, or Nano boards from 18V sources. Prevents overheating of onboard regulators.

🔸 LED & Lighting Circuits

  • Maintains consistent brightness and extends LED lifespan for 12V LED strips and modules.

🔸 Audio Amplifiers

  • Delivers low-noise 12V rails for audio preamps and Class D amplifiers, improving clarity and stability.

🔸 Robotics & Motor Drivers

  • Powers 12V motors, sensors, and relay modules using batteries or SMPS with voltage fluctuations.

🔸 Educational STEM Labs

  • Standard teaching component in Atal Tinkering Labs (ATL), ITI, and engineering colleges for circuit design experiments.

🎯 Key Benefits:

  • ✅ Precise 12V regulation for stable operation
  • ✅ Built-in short circuit and thermal protection
  • ✅ Compatible with all 78xx series regulators
  • ✅ Works with batteries, adapters, and power supplies
  • ✅ Low-cost and reliable for long-term use

🧠 Power Dissipation Example:

  • If input = 18V and output = 12V @ 1A →
  • Power Dissipation = (18V - 12V) × 1A = 6W
  • Heatsink is mandatory for dissipation above 2W to prevent thermal shutdown.

🛡️ Quality & Compliance:

  • ✅ 100% Tested for voltage accuracy & current handling
  • 🌍 RoHS Compliant (Lead-free)
  • ✅ CE Certified (European Safety Standard)
  • 🔬 Manufactured in ISO 9001:2015 certified facility

Package Included:

  • 1 x L7812CV L7812 KA7812 MC7812 12V 1.5A TO-220 Voltage Regulator