Transformer 220V 12-0-12V (300mA)

Specifications

1. Primary Voltage:
   • The primary winding operates at 220V AC. This is the voltage that connects to the mains power supply, commonly found in many countries.
2. Secondary Voltage:
   • The transformer has a secondary output that features a center tap, providing three terminals:
     • 12V: One side of the secondary winding.
     • 0V (Center Tap): The center tap, providing a neutral reference point.
     • -12V: The other side of the secondary winding.
   • This configuration allows for two different output voltages: +12V and -12V AC (with respect to the center tap).
3. Current Rating:
   • The transformer can supply a maximum current of 300mA (0.3A) from each of the 12V outputs. This means that it can provide sufficient current for small to moderate load applications.
4. Construction:
   • The transformer is typically constructed with two windings (primary and secondary) wound around a magnetic core, often made from laminated silicon steel to minimize energy losses and enhance efficiency.
5. Physical Size:
   • The size can vary based on the power rating and construction, but it is generally compact enough for a variety of applications.
6. Insulation:
   • Adequate insulation is provided between the primary and secondary windings to ensure safe operation and to protect against electrical shocks.

Applications

• Dual Power Supply: This transformer is ideal for applications that require dual polarity power supplies, such as operational amplifiers, audio equipment, and other analog circuits.
• Audio Equipment: Used in audio amplifiers and mixers where dual supply voltages are needed for powering op-amps and other components.
• Signal Processing: Suitable for various signal processing circuits that require both positive and negative voltage rails.
• Low-Power Electronics: Often used in low-power electronic circuits, desktop power supplies, and battery chargers where space is limited, but a dual output is required.
• Hobby Projects: Commonly utilized in DIY electronics projects by hobbyists who need a center-tapped transformer for experimentation or small device construction.

Important Considerations

• Load Distribution: When using the transformer, it’s essential to ensure that the load is balanced if both 12V outputs are used simultaneously to avoid overloading one side.
• Ventilation: Ensure adequate ventilation around the transformer during operation to prevent overheating, especially if it is run near its maximum rated load.
• Power Ratings: The transformer should not be operated beyond its 300mA current rating or at voltages higher than specified to prevent damage.
• Safety Standards: Ensure that the transformer meets local electrical safety standards and codes for safe and reliable operation.

This transformer is versatile and highly useful in many electronic applications, especially where dual voltage is required from a single power source