3FD-528

Power Transformers Overview

The Tamura 3FD-528 is a laminated core power transformer designed for through-hole mounting on printed circuit boards. It features a three-flange bobbin construction to minimize capacitive coupling and provides a high-potential insulation rating of 2500Vrms. The unit has a power rating of 12VA with dual primary windings supporting 115V and 230V inputs at 50/60Hz. Secondary outputs are configured for parallel operation at 14V with 840mA current, or series operation at 28V with 420mA current. The component utilizes an 8-pin configuration and measures 41.4mm in height.

Power Transformers Feature Summary

• Three-flange bobbin construction reduces capacitive coupling
• High-potential insulation rating of 2500Vrms
• Dual primary winding capability for global voltage compatibility
• Flexible secondary output configuration for parallel or series connection

Power Transformers Applications

• General-purpose AC-to-DC power supply units
• Industrial control system power distribution
• Electronic equipment requiring isolated power stages

Power Transformers Procurement Notes

Verify the specific datasheet version against the manufacturer's official documentation to confirm mechanical dimensions and electrical tolerances. Ensure that the procurement channel provides authentic components from Tamura Corporation of America. Cross-reference the part number with authorized distributor catalogs to validate availability and authenticity before finalizing orders.

Power Transformers Selection Notes

Select this model when a 12VA isolation transformer is required for board-mounted applications. Consider the 41.4mm height constraint for enclosure design. Choose between parallel or series secondary configurations based on the target DC bus voltage requirements. Verify that the input voltage range matches the local mains frequency and amplitude specifications.

Power Transformers Part Context

This component belongs to Tamura's line of laminated core power transformers designed for PCB integration. It serves as a critical isolation stage in power conversion architectures. The product family emphasizes robust construction and electrical safety standards suitable for commercial and industrial electronics manufacturing.

Power Transformers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Evaluate cross-compatibility based on identical VA ratings, pin configurations, and physical footprint dimensions when sourcing alternatives.