VTX-146-250-212

Overview

The Vigortronix VTX-146-250-212 is a 250VA open-style toroidal power transformer designed for chassis mounting. It features dual primary windings rated at 115V + 115V, allowing operation at 115V (parallel) or 230V (series). The secondary configuration provides dual outputs of 12V each, supporting parallel connection for 12V at 10.42A or series connection for 24V at 5.21A. The unit includes a mounting kit with bolts, washers, and rubber pads to facilitate installation.

Feature Summary

• Toroidal core design providing low magnetic radiation and reduced hum
• Dual primary windings enabling flexible 115V or 230V input selection
• Dual secondary windings offering versatile voltage output configurations
• Includes hardware kit for secure chassis mounting

Applications

• Audio amplifiers and preamplifiers
• Laboratory power supplies
• Electronic equipment requiring stable voltage conversion

Procurement Notes

Verify the specific secondary voltage requirement (12V parallel vs 24V series) against the target circuit design before procurement. Confirm that the physical dimensions and mounting hole patterns are compatible with the intended chassis enclosure. Ensure the input voltage matches the available primary winding configuration (115V or 230V). Check for any regional compliance certifications required for the end application.

Selection Notes

Select this component when a high-efficiency, low-noise power source is required for sensitive electronics. The toroidal shape offers a compact footprint relative to its 250VA capacity. Consider the dual secondary flexibility if both 12V and 24V rails might be needed in different system variants. Evaluate thermal management requirements based on the continuous load expected in the final assembly.

Part Context

This model belongs to the Vigortronix VTX series of toroidal transformers, which are characterized by their open-style construction and robust electrical testing. The VTX-146-250-212 represents a mid-range power rating within this family, balancing size and output capability. It is distinct from lower VA models like the VTX-146-030-209, offering higher current delivery capabilities suitable for more demanding loads.

Replacement Considerations

Direct substitutes must match the 250VA rating, 115+115V primary, and 12+12V secondary specifications. Verify that alternative toroidal transformers maintain similar physical dimensions for chassis compatibility. Ensure replacement units also feature dual primary and secondary windings to preserve wiring flexibility. Cross-reference mounting hole spacing to avoid mechanical modification during installation.