ST-3-48

Power Transformers Overview

The ST-3-48 is a laminated core power transformer manufactured by Signal Transformer, designed for through-hole mounting. It features a single primary winding rated for 115VAC operation and dual secondary windings providing 24V parallel or 48V series configurations. The unit has a maximum power rating of 2.4VA with a secondary current capacity of 100mA in parallel mode. Electrical isolation is specified at 2500Vrms. Physical dimensions include a length of 34.9mm and a width of 28.6mm.

Power Transformers Feature Summary

• Laminated core construction for efficient magnetic coupling
• Dual secondary winding capability for flexible voltage configuration
• High electrical isolation rating for safety compliance
• Through-hole termination style for robust PCB integration

Power Transformers Applications

• Low-power AC to DC power supply circuits
• Industrial control system power distribution
• Consumer electronics internal power conversion
• Signal processing equipment power stages

Power Transformers Procurement Notes

Verify the specific datasheet version to confirm exact pinout assignments and mechanical tolerances before integration. Ensure the selected variant matches the required primary voltage and secondary configuration. Check for RoHS compliance status if environmental regulations apply to the final assembly. Confirm that the through-hole footprint aligns with the target PCB design constraints.

Power Transformers Selection Notes

Select this component when a compact, low-power transformer with dual secondary options is required. The 2.4VA rating suits applications with modest current demands. Consider the physical dimensions against available board space. Verify that the 115V primary input matches the source voltage. Evaluate the need for 2500Vrms isolation relative to safety standards.

Power Transformers Part Context

This part belongs to the ST series of split-bobbin transformers from Signal Transformer. The series offers various power ratings from 1.1VA to 36VA across multiple configurations. The ST-3-48 specifically addresses needs for 2.4VA output with versatile secondary winding arrangements. It complements other parts like the DST-3-48 which may offer different primary winding options.

Power Transformers Replacement Considerations

The DST-3-48 is a related model within the same family, potentially offering dual primary winding support. Verify if the single primary constraint of the ST-3-48 is acceptable or if dual primary flexibility is needed. Cross-reference mechanical dimensions to ensure interchangeability without PCB redesign.