18-0-18 Stepdown Transformer 1A
18-0-18 Stepdown Transformer 1A
This 18-0-18 stepdown transformer delivers a dual secondary output of 18V-0-18V at 1A, making it a reliable choice for building linear power supplies and audio amplifier circuits. It is suitable for hobbyists, students, and engineers working on low-voltage AC-to-DC conversion projects.
Specifications
- Input: 230V AC, 50Hz
- Output: 18V-0-18V AC (dual secondary)
- Current rating: 1A
- Power rating: 36VA
- Type: Stepdown, center-tapped
- Dimensions: Approximately 70mm x 60mm x 50mm (L x W x H)
- Weight: Approximately 400g
- Mounting: Screw terminals for input and output connections
Compatible with
This transformer works with standard rectifier circuits (bridge rectifier), voltage regulator ICs (LM317, LM7818, LM7918), and filter capacitors. It is commonly used with Arduino, ESP32, and Raspberry Pi projects that require a regulated DC power supply.
What you can build with it
- Dual-rail power supply for audio preamplifiers or op-amp circuits
- Adjustable bench power supply using LM317 and LM337 regulators
- AC-to-DC converter for powering microcontroller-based projects
Built and Backed by Compoden
Every component from Compoden comes with access to an AI build companion — delivered via QR code, email, or WhatsApp — that helps you wire and program this transformer into a working project. With over 10 years of experience supplying makers and institutions across India, we ensure you get the right part and the support to use it. Pay your way: UPI, cards, or Cash on Delivery, anywhere in India.
What is the difference between 18-0-18 and 0-18?
An 18-0-18 transformer has a center-tapped secondary, providing two 18V AC outputs (one positive, one negative relative to the center tap). A 0-18 transformer gives a single 18V AC output. The center-tapped version is used for dual-rail power supplies.
What payment options are available for 18-0-18 Stepdown Transformer 1A?
We accept UPI, all major credit/debit cards, and Cash on Delivery (COD) for orders across India. COD is available on all orders with no extra charges.
How long does delivery take?
We ship 18-0-18 Stepdown Transformer 1A across India including Delhi, Mumbai, Bangalore, Hyderabad, Chennai, and Pune. Delivery typically takes 3–7 business days depending on your location.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items