DST-2-56

Overview

The DST-2-56 is a Class 2 board-mount power transformer from the DST series by Signal Transformer. It features dual primary windings rated for 115 VAC and 230 VAC, and dual secondary windings providing 56 VCT or 28 V outputs. The unit has a power rating of 1.1 VA with secondary current ratings of 20 mA (series) and 40 mA (parallel). Designed for through-hole mounting, it measures 41.3 mm in length, 33.3 mm in width, and 33.3 mm in height.

Feature Summary

• Dual cavity split bobbin construction
• Class 2 safety isolation
• Dual primary winding configuration
• Through-hole pin termination

Applications

• Low power electronic equipment requiring isolated AC supply
• Control circuits utilizing Class 2 power sources
• Industrial control panels needing 56VCT or 28V secondary rails

Procurement Notes

Verify datasheet specifications against application requirements before ordering. Confirm that the 1.1 VA power rating and 56 VCT/28 V output voltages match the load demands. Ensure the through-hole footprint dimensions align with the PCB layout. Check RoHS compliance status if required by project regulations.

Selection Notes

Select this component when a low-power, isolated transformer with dual primary voltage options is needed. The dual secondary design allows flexibility for series or parallel connection to achieve specific voltage and current levels. Consider the physical size constraints as the unit requires a specific through-hole mounting area on the circuit board.

Part Context

This part belongs to the DST series of split-bobbin transformers manufactured by Signal Transformer. These units are designed for general-purpose power applications where electrical isolation is required. The series offers various voltage configurations to suit different international input standards and local output requirements.

Replacement Considerations

ST-2-56 is listed as a similar alternative part number.