Transformer 12-0-12V 50VA

The Transformer 12-0-12V 50VA is a centre-tapped step-down transformer with a 12-0-12 V secondary and a 50 VA power rating. It gives 12 V AC on each half of the secondary, or 24 V AC across the full winding. The 50 VA rating gives enough current for dual-rail op-amp and audio amplifier supplies, battery chargers and regulated DC supplies for control boards, relays and small motors.

Transformer 12-0-12V 50VA Specifications

• Secondary: 12-0-12 V AC, centre-tapped (12 V + 12 V)
• Full secondary: 24 V AC end to end
• Power rating: 50 VA
• Secondary current: about 2 A from the full 24 V winding (50 VA ÷ 24 V)
• Primary: AC mains; check the label for the rated input voltage
• Type: step-down transformer with a centre tap

Transformer 12-0-12V 50VA Applications

• Dual-rail ±12 V supplies for op-amps, preamplifiers and audio projects
• Power supplies for small and medium audio amplifiers
• Full-wave rectifiers using two diodes and the centre tap
• Regulated 5 V or 9 V DC supplies with a bridge rectifier and a 7805 or 7809
• Low-voltage AC for electronics training and replacement in small devices

What's in the Box

• 1 × 12-0-12 V 50 VA transformer

Tip: After rectification and a filter capacitor, each 12 V half gives about 16 V DC at light load (12 V × 1.41 minus the diode drop), so use filter capacitors rated at least 25 V. The primary connects to mains voltage: insulate all primary connections, add a fuse and never work on the wiring while it is plugged in.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.