EI Step-Down Transformer 220V to 12VAC 5A Single Secondary
Brand: GenericPower Supplies & Adapters
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Prices updated: 13 Oct 2026
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About this product
An EI-core step-down transformer that converts 220 V mains to 12 V AC at 5 A, with a single secondary winding rated about 60 VA. It is used in linear power supplies and for relay or motor loads that need a 12 V AC source.
Specifications
- Primary voltage
- 220 V AC
- Secondary voltage
- 12 V AC
- Secondary current
- 5 A
- Power rating
- About 60 VA
- Secondary type
- Single (not 12-0-12)
- Core type
- EI
Frequently asked questions
Can I use it for a 12-0-12 circuit?
No. The listing states this is a single secondary and is not 12-0-12, so it gives 12 V AC between two terminals with no centre tap.
Do I need to rectify the output for a DC supply?
Yes. 12 V AC RMS has a peak of about 17 V before rectifier losses. A bridge rectifier and filter capacitor are needed to produce smooth DC for a linear supply.
