VTX-146-500-125

Overview

The Vigortronix VTX-146-500-125 is a 500VA toroidal power transformer designed for PCB installation. It features a single primary winding rated for 230V AC input. The unit provides dual secondary windings, each delivering 25V AC, resulting in a total output configuration of 2 x 25V. This component utilizes an open-style core design with 150mm cable lengths for connection.

Feature Summary

• Toroidal core construction for efficient magnetic flux and compact form factor
• Dual secondary windings providing isolated 25V AC outputs
• Single primary winding compatible with 230V AC mains supply
• Open-style design facilitating integration into custom equipment enclosures

Applications

• Unregulated power supply circuits requiring dual voltage rails
• Audio amplifier power stages needing balanced or split supplies
• Industrial control systems utilizing 230V AC input sources
• Test and measurement equipment power modules

Procurement Notes

Verify the specific voltage tolerance and regulation requirements of your downstream circuitry against the unregulated nature of this transformer. Confirm that the 150mm cable length meets your board layout constraints. Ensure the 500VA rating aligns with the maximum continuous current draw of your application to prevent thermal overload during operation.

Selection Notes

Select this model when a 230V AC input is available and dual 25V AC outputs are required without internal rectification. Consider the physical dimensions and mounting requirements for PCB installation. Evaluate if the open-core design fits within the mechanical enclosure limits compared to encapsulated alternatives.

Part Context

This component belongs to the Vigortronix VTX series of PCB-mounted toroidal transformers. These units are engineered for high efficiency and low electromagnetic interference. The VTX-146-500-125 specifically addresses applications needing robust power conversion from standard mains voltage to lower AC voltages for subsequent rectification and filtering stages.

Replacement Considerations

Cross-reference tools may identify parametrically similar parts. Verify that any substitute matches the 500VA power rating, 230V primary, and 2x25V secondary configuration. Ensure physical footprint and terminal type compatibility before substitution.