DST-4-12

Overview

The DST-4-12 is a laminated core power transformer from the Split/Tran Class 2 series by Signal Transformer. It features dual primary windings rated for 115 VAC and 230 VAC operation at 50 Hz or 60 Hz. The secondary configuration provides dual outputs of 6.3 VCT and 12.6 VCT, delivering a total power rating of 6 VA. Maximum secondary currents are 1 A and 500 mA respectively. Designed for through-hole mounting with solder pins, the unit measures 41.3 mm in length, 33.3 mm in width, and 33.3 mm in height.

Feature Summary

• Dual primary winding capability supports flexible input voltage selection between 115 VAC and 230 VAC.
• Split bobbin construction facilitates independent secondary circuit isolation and grounding.
• Laminated core design ensures efficient magnetic coupling for standard frequency operations.

Applications

• Industrial control panel power supplies
• Equipment requiring isolated low-voltage DC conversion
• Class 2 compliant electronic device power stages

Procurement Notes

Verify that the specific application requires dual primary winding support to utilize both 115 VAC and 230 VAC inputs effectively. Confirm that the PCB layout accommodates the through-hole pin spacing and physical dimensions of 41.3 mm by 33.3 mm. Ensure the load current does not exceed the specified 1 A or 500 mA limits on the respective secondary taps to maintain thermal safety and performance integrity.

Selection Notes

Select this model when dual voltage input flexibility is required alongside split secondary outputs. Compare against single-primary ST-series variants if only one input voltage is needed. Verify that the 6 VA power rating meets the system's peak and continuous load requirements. Consider the physical size constraints relative to other transformers in the same series to ensure proper enclosure fitment.

Part Context

This component belongs to the DST series of Split/Tran transformers, characterized by split bobbin architecture. It shares mechanical footprints with related models like DST-4-10 and DST-4-56 but differs in electrical ratings. The series is designed for board-mount applications requiring robust isolation and standardized form factors for industrial electronics integration.

Replacement Considerations

Direct substitutes include models within the same DST series with matching 6 VA ratings and compatible secondary voltages. Cross-reference part numbers such as DST-4-10 for different secondary configurations while maintaining identical physical dimensions and mounting styles.