14V 500mA Step Down Transformer 230V AC to 0-14V AC

Description

The 14V 500mA Step Down Transformer 230V AC to 0-14V AC is a robust, chassis-mounting power transformer essential for stepping down standard mains voltage to a safer, usable low-voltage AC output. Built with a traditional EI iron core and high-quality copper enamel windings, this transformer reliably converts a 230V AC input directly into a 14V AC output with a maximum load capacity of 500mA (0.5 Amps).

Available now at Tomson Electronics, this single-secondary (two-wire) transformer is the foundational component for building custom linear DC power supplies. By simply adding a bridge rectifier and a smoothing capacitor, you can easily convert the 14V AC output into a stable DC voltage to power your Arduino projects, custom audio amplifiers, or low-voltage lighting systems.

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Specifications

• Input Voltage (Primary): 230V AC (Standard Mains)
• Output Voltage (Secondary): 0-14V AC (Single Winding)
• Maximum Output Current: 500mA (0.5A)
• Transformer Type: Step-Down (EI Core)
• Mounting Style: Chassis mount with side-bracket screw holes
• Output Type: AC (Requires external rectification for DC)

Applications

• Linear Power Supplies: The core component for building basic LM317 or LM7812 regulated DC power supplies.
• Audio Amplifiers: Providing clean, low-noise AC power for custom audio pre-amps and hobbyist amplifier boards.
• Battery Chargers: Assembling custom slow-chargers for low-capacity lead-acid or NiMH battery packs.
• Educational Kits: Teaching students the fundamentals of AC electromagnetism, stepping down voltage, and bridge rectification.

Frequently Asked Questions (FAQ)

Q: Does this transformer output AC or DC voltage?
A: Transformers only output AC (Alternating Current). If your project requires DC voltage (like powering a microcontroller or DC motor), you must connect the transformer's output to a diode bridge rectifier and a smoothing capacitor.

Q: What does "0-14V" mean? Is it different from a center-tapped transformer?
A: "0-14V" means it has a single secondary winding with just two output wires providing a 14V potential difference. A center-tapped transformer (like a 12-0-12) would have three wires. For standard power supplies requiring a standard bridge rectifier, a 0-14V two-wire output is perfect.

Q: Can I draw more than 500mA from this transformer?
A: No. Drawing more than the rated 500mA (0.5A) will cause the internal copper windings to overheat, which can melt the enamel insulation, cause an internal short circuit, and permanently destroy the transformer.

Package Includes

• 1 × 14V 500mA Step Down Transformer 230V AC to 0-14V AC