This post explains for the voltage regulator.
The Part Number is 7805A.
The function of this transistor is 5V, regulator.
The package is TO-220 Type
Manufacturer: Estek, WingShing
Preview images :
This 7805A series of fixed-voltage monolithicintegrated-circuit voltage regulators is designed fora wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated withsingle-point regulation. In addition, they can be used with power-pass elements to make high-current voltage regulators.Each The internalof these regulators can deliver up to 1.5 A of output current. limiting and termal shutdown features of these regulators make them essentially immune to overload.
A voltage regulator is an electronic circuit that maintains a constant voltage level. It is designed to provide a stable output voltage that is independent of the changes in input voltage, load current, temperature, and other environmental conditions.
Voltage regulators are used in a variety of applications, including power supplies for electronic devices, battery charging systems, and voltage stabilizationization for sensitive equipment. They help protect the devices from damage due to voltage fluctuations or overloading, and ensure that the devices receive a consistent, reliable power source.
1. Output Current in Excess of 1.5A (PD˚ 15W)
2. No External Components Required
3. Internal Short Circuit Current Limiting
4. Internal Thermal Overload Protection
5. Output Transistor Safe-Area Compensation
6. Output Voltage Offered in 4% Tolerance […]
7806A : 6 V
7807A : 7 V
7808A : 8 V
7809A : 9 V
7810A : 10 V
7812A : 12 V
7815A : 15 V
7818A : 18 V
7820A : 20 V
7824A : 24 V