Overview
The MC7812ACT is a linear voltage regulator produced by onsemi. Although it is currently obsolete and no longer manufactured, it was widely used for its stability and reliability in providing a fixed output voltage. This regulator is part of the 78xx series, known for its simplicity and effectiveness in various electronic circuits.
Key Specifications
| Specification | Value |
|---|---|
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 35V |
| Voltage - Output (Fixed) | 12V |
| Current - Output (Max) | 1 A |
Key Features
The MC7812ACT features a fixed output voltage of 12V, making it suitable for applications requiring a stable voltage supply. Key features include:
- Linear voltage regulation with low dropout voltage.
- High current capability up to 1 A.
- Thermal overload protection to prevent damage from excessive heat.
- Short-circuit protection to safeguard against output short circuits.
Applications
The MC7812ACT is designed for use in a variety of applications where a stable 12V voltage supply is necessary. These include:
- Power supplies for electronic devices.
- Industrial control systems.
- Automotive electronics.
- Consumer electronics requiring a reliable voltage source.
Q & A
- What is the output voltage of the MC7812ACT?
The output voltage of the MC7812ACT is 12V. - What is the maximum input voltage for the MC7812ACT?
The maximum input voltage for the MC7812ACT is 35V. - What is the maximum output current of the MC7812ACT?
The maximum output current of the MC7812ACT is 1 A. - Is the MC7812ACT still in production?
No, the MC7812ACT is obsolete and no longer manufactured. - What type of protection does the MC7812ACT have?
The MC7812ACT has thermal overload protection and short-circuit protection. - What are common applications for the MC7812ACT?
Common applications include power supplies, industrial control systems, automotive electronics, and consumer electronics. - What is the significance of the 'ACT' in the MC7812ACT model number?
The 'ACT' in the model number typically indicates the package type and temperature range, but specific details should be checked in the datasheet. - Where can I find detailed specifications for the MC7812ACT?
Detailed specifications can be found in the datasheet available on the manufacturer's website or through distributors like Mouser, Digi-Key, and Heisener. - Can I use the MC7812ACT in high-temperature environments?
The suitability of the MC7812ACT in high-temperature environments depends on its specific temperature rating, which should be checked in the datasheet. - What are some alternatives to the MC7812ACT if it is no longer available?
Alternatives can include other models from the 78xx series or similar linear voltage regulators from other manufacturers, such as the LM7812 or equivalent models.
