SG7812K-883B

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Regulator

Characteristics: - High-performance voltage regulator - Designed for military and aerospace applications - Operates in extreme environmental conditions - Provides a stable output voltage of 12V

Package: TO-3 metal can package

Essence: The SG7812K-883B is a high-quality voltage regulator that ensures a constant output voltage of 12V, making it suitable for various military and aerospace applications.

Packaging/Quantity: The SG7812K-883B is typically packaged individually and comes in a standard quantity of one unit per package.

Specifications

• Input Voltage Range: 14V to 35V
• Output Voltage: 12V
• Output Current: Up to 1.5A
• Dropout Voltage: 2V (maximum)
• Line Regulation: 0.01%/V
• Load Regulation: 0.1%
• Operating Temperature Range: -55°C to +125°C
• Package Type: TO-3 metal can

Detailed Pin Configuration

The SG7812K-883B has three pins:

1. Input Pin (Pin 1): This pin is used to connect the input voltage source.
2. Ground Pin (Pin 2): This pin is connected to the ground or common reference point.
3. Output Pin (Pin 3): The regulated output voltage of 12V is obtained from this pin.

Functional Features

• High Performance: The SG7812K-883B offers excellent performance and reliability, meeting the stringent requirements of military and aerospace applications.
• Stable Output Voltage: It provides a constant output voltage of 12V, ensuring a reliable power supply for connected devices.
• Wide Input Voltage Range: The regulator can accept input voltages ranging from 14V to 35V, making it versatile for various power sources.
• Low Dropout Voltage: With a maximum dropout voltage of 2V, the SG7812K-883B minimizes power dissipation and improves efficiency.

Advantages and Disadvantages

Advantages: - High-performance voltage regulation - Suitable for extreme environmental conditions - Reliable and stable output voltage - Wide input voltage range

Disadvantages: - Limited output current capacity (up to 1.5A) - Relatively high dropout voltage compared to newer models

Working Principles

The SG7812K-883B is based on a linear voltage regulator design. It utilizes a series pass transistor to regulate the output voltage. When the input voltage exceeds the desired output voltage, the regulator reduces the excess voltage by dissipating it as heat. This ensures a constant output voltage of 12V regardless of variations in the input voltage or load conditions.

Detailed Application Field Plans

The SG7812K-883B is commonly used in the following applications:

1. Military Equipment: It is employed in military-grade electronic systems, such as communication devices, radar systems, and avionics equipment.
2. Aerospace Systems: The voltage regulator finds application in aerospace systems, including satellites, spacecraft, and navigation instruments.
3. Industrial Control Systems: It is utilized in industrial control systems that require a stable and reliable power supply for various components and sensors.

Detailed and Complete Alternative Models

1. LM7812: A widely used alternative with similar specifications and pin configuration.
2. UA7812: Another popular alternative offering comparable performance and compatibility.
3. MC7812: An alternative model known for its low dropout voltage and high efficiency.

These alternative models provide similar functionality and can be considered as replacements for the SG7812K-883B in various applications.

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