Description

Key Specifications:

✔ Input Voltage: 220V AC (50/60Hz)
✔ Output Voltage: 12V-0-12V AC (center-tapped, 24V total)
✔ Current Rating: 2A (per 12V winding, 1A if using full 24V)
✔ Power Capacity: 24VA (12V × 2A)
✔ Winding Material: High-purity copper (low resistance, minimal losses)
✔ Core Type: Laminated silicon steel (reduced eddy currents, quiet operation)
✔ Insulation Class: Class B (130°C rated)
✔ Mounting Style: Chassis mount (with sturdy metal brackets)
✔ Efficiency: ≥85% (typical under load)

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Key Features:

• Dual-Voltage Flexibility – Use either:

  • 12V AC (center tap to one end)

  • 24V AC (across both ends, ignoring center tap)

  • ±12V DC (after rectification for dual-rail supplies)

• Center-Tap Advantage – Enables full-wave rectification with just 2 diodes (vs. 4 in bridge rectifiers).

• Robust Construction – Varnished windings resist moisture and short circuits.

• Low Magnetic Leakage – Shielded design minimizes interference.

• Thermal Protection – Auto-resetting thermal fuse embedded in windings.

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Typical Applications:

• Audio Equipment – Power supplies for amplifiers, mixers, and preamps

• Lab Power Supplies – Bench top ±12V DC power sources

• Industrial Controls – PLCs, motor drives, and automation systems

• Battery Chargers – For 12V/24V lead-acid batteries

• DIY Electronics – Arduino/RPi projects, LED drivers

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Wiring Guide:

1. Primary Side:

   • Connect Live (L) and Neutral (N) to input terminals

2. Secondary Side:

   • For 12V AC: Use center tap (0V) + either 12V lead

   • For 24V AC: Use both outer 12V leads

   • For ±12V DC: Connect to full-wave rectifier (2 diodes + capacitors)

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Safety & Usage Notes:

⚠ Always include:

• Primary-side fuse (recommended: 500mA slow-blow)

• Proper heatsinking if used near max current

• Strain relief for wiring

⚠ Do not:

• Exceed 2A continuous current

• Operate without load for extended periods

• Mount near heat sources

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Package Includes:

• 1× 220V to 12V-0-12V 2A Center-Tapped Transformer

 

Why This Transformer?

✅ Higher Current – 2A rating vs. typical 1A models
✅ Energy Efficient – Thicker copper windings reduce power loss
✅ Multi-Purpose – One transformer for multiple voltage needs
✅ Reliable – Rated for 50,000+ hours operation