Compact Step-Down Transformer 220VAC to 6V-0-6V AC 300mA – 3 Wire Center-Tapped Output

Product Overview

This compact step-down transformer converts a 220V AC mains input into a center-tapped 6V-0-6V AC output through three secondary wires. It is suitable for low-power electronic circuits, educational kits, signal-processing projects, and small power-supply designs that require a symmetrical low-voltage AC source.

Each outer secondary wire provides approximately 6V AC relative to the center-tap wire, while the voltage measured between the two outer wires is approximately 12V AC. After adding a suitable rectifier, smoothing capacitors, and voltage regulation, the transformer can be used to build single-rail or positive and negative DC power supplies.

Key Features

• Converts 220V AC mains input to a low-voltage 6V-0-6V AC output.
• Center-tapped secondary winding with three output wires.
• Provides approximately 6V AC from either outer wire to the center tap.
• Provides approximately 12V AC between the two outer secondary wires.
• 300mA output current rating for low-power electronic applications.
• Compact size for installation inside small enclosures and electronic projects.
• Laminated iron-core construction for conventional mains-frequency operation.
• Electrical isolation between the high-voltage primary and low-voltage secondary windings.
• Suitable for educational, experimental, embedded, audio, and control circuits.

Output Configuration

Technical Specifications

Applications

• Low-power positive and negative DC power supplies after rectification.
• Educational and academic electronics training kits.
• Small embedded and microcontroller projects.
• Low-power LED and indicator circuits.
• Audio preamplifier and signal-processing circuits.
• Sensor, buzzer, relay, and control circuits.
• DIY electronics and breadboard power-supply projects.
• Circuits requiring 6V AC or 12V AC at low current.

Package Contents

• 1 x 220VAC to 6V-0-6V AC 300mA Center-Tapped Transformer

Important Notes

• The transformer output is AC and must not be treated as a direct DC supply.
• A suitable rectifier and filtering circuit is required when DC voltage is needed.
• When using both outer secondary wires, the total output is approximately 12V AC, not 6V AC.
• The DC voltage after rectification may be higher than the stated AC voltage when the circuit is unloaded.
• The 220V input is hazardous and installation must be performed by a qualified person.
• Use an appropriate fuse, insulated enclosure, and safe spacing between the primary and secondary connections.
• Confirm the center-tap and outer wires using continuity testing and a suitable multimeter before connecting the circuit.
• Do not exceed the rated current to avoid excessive heating or transformer damage.