Transformer 12-0-12V 35VA

The Transformer 12-0-12V 35VA is a mains step-down transformer with a centre-tapped secondary that gives 12 V AC on each side of the centre tap (24 V AC end to end) and a power rating of 35 VA. It is a classic choice for linear power supplies: use the centre tap as 0 V to build a dual positive and negative supply, or use it with a full-wave rectifier for a single DC output.

Transformer 12-0-12V 35VA Specifications

• Secondary: 12-0-12 V AC, centre-tapped
• End-to-end voltage: 24 V AC
• Power rating: 35 VA
• Rated current: about 1.45 A across the full 24 V winding (35 VA ÷ 24 V)
• Primary: AC mains input; check the label for the rated input voltage
• Frequency: low-frequency mains transformer for 50/60 Hz

Transformer 12-0-12V 35VA Applications

• Dual-rail supplies for op-amp and audio circuits
• Power supplies for small audio amplifiers
• Regulated or unregulated DC supplies with a full-wave rectifier
• Electronics teaching labs and power supply projects

What's in the Box

• 1 × transformer 12-0-12 V, 35 VA

Tip: After rectifying and smoothing, the DC voltage is about 1.4 × the AC voltage minus the diode drops, so expect roughly 15–17 V DC from each 12 V half at light load. Fuse the primary and insulate every mains connection.

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