3FS-210

Power Transformers Overview

The Tamura 3FS-210 is a laminated core power transformer designed for through-hole mounting. It features a single primary winding rated at 115V and dual secondary windings configured for parallel operation at 5V or series operation at 10V. The unit delivers a maximum power of 1.1VA, with current ratings of 220mA in parallel mode and 110mA in series mode. It provides 2500Vrms isolation voltage and measures 35.56mm in length, 31.00mm in width, and 25.40mm in height.

Power Transformers Feature Summary

• Laminated core construction for efficient AC to AC step-down conversion
• Dual secondary windings allowing flexible parallel or series voltage configurations
• Through-hole termination style with PC pin ends for board mounting

Power Transformers Applications

• General purpose AC to AC power supply circuits
• Low power electronic equipment requiring isolated voltage steps
• Industrial control panels utilizing standard 115V input lines

Power Transformers Procurement Notes

Verify the specific datasheet version for the 3FS-210 model to confirm exact dimensional tolerances and insulation class requirements. Ensure that the selected mounting holes align with the specified PC pin spacing. Confirm compliance with local environmental regulations such as RoHS standards before finalizing procurement specifications.

Power Transformers Selection Notes

Select this component when a compact, low-power transformer is needed for 115V primary applications. The dual secondary design offers flexibility for both 5V and 10V outputs. Consider the physical dimensions and through-hole requirement during PCB layout. Verify that the 1.1VA rating meets the load demands of the target circuit.

Power Transformers Part Context

The 3FS-210 belongs to the Tamura Microtran 3FS-2xx series of board-mount power transformers. This series is characterized by its small footprint and high reliability for general-purpose applications. Similar models in the series include the 3FS-212 and 3FS-216, which offer different secondary voltage configurations while maintaining similar primary characteristics.

Power Transformers Replacement Considerations

Signal Transformer ST-2-12 is a direct replacement option. Triad Magnetics F12-090 is listed as a similar alternative. Verify pinout compatibility and electrical parameters before substituting.