F20-120-C2

Overview

The Triad Magnetics F20-120-C2 is a Class 2 power transformer designed for printed circuit board (PCB) mounting. It features a split bobbin construction with series/parallel primary windings and dual secondary windings, allowing operation at either 115V or 230V input configurations. The unit provides a 12.6V center-tapped output rated at 120mA, delivering a total power capacity of approximately 1.5VA. This component is UL and cUL recognized, ensuring compliance with safety standards for low-voltage applications.

Feature Summary

• Split bobbin design facilitates efficient PCB layout and thermal management
• Versatile primary winding configuration supports both 115V and 230V AC input options
• Dual secondary windings enable flexible voltage output configurations
• Class 2 certification ensures safe operation in low-energy circuits

Applications

• Low-power electronic control systems
• Consumer electronics requiring isolated power supplies
• Industrial instrumentation panels
• Audio equipment signal processing stages

Procurement Notes

Verify the specific datasheet version to confirm exact physical dimensions and pinout compatibility with your PCB footprint. Ensure that the 120mA current rating meets the load requirements of your application. Confirm regulatory recognition status (UL/cUL) is required for your target market compliance. Check for any recent manufacturing updates that might affect lead times or packaging.

Selection Notes

Select this transformer when a compact, isolated power source is needed for low-current applications. The split bobbin design is advantageous for minimizing electromagnetic interference and simplifying assembly. Consider the 12.6VCT output if your downstream circuitry requires a center-tapped reference or dual polarity rails derived from a single secondary winding.

Part Context

This component belongs to Triad Magnetics' FS/F series of Class 2 transformers, which are engineered for space-constrained PCB applications. These units typically feature epoxy potting for mechanical stability and environmental protection. The series is widely used in industries requiring reliable, certified isolation between mains voltage and low-voltage logic or control circuits.

Replacement Considerations

Direct substitutes include the FS20-120-C2, which shares identical electrical characteristics and form factor. Other compatible variants within the same family may offer slight differences in mounting style or insulation class but maintain equivalent performance metrics.