3FD-520

Power Transformers Overview

The Tamura 3FD-520 is a laminated core power transformer designed for through-hole mounting. It features dual primary windings rated for 115 VAC and 230 VAC operation, allowing parallel connection for voltage selection. The secondary configuration provides dual outputs of 10 VAC and 20 VAC, supporting parallel or series connections to deliver up to 1.2 A in parallel mode or 600 mA in series mode. With a total power rating of 12 VA, the unit measures 48.50 mm in length and 41.52 mm in width, ensuring compatibility with standard PCB layouts requiring robust isolation and efficient power conversion.

Power Transformers Feature Summary

• Dual primary winding design supports flexible 115 VAC or 230 VAC input selection via parallel connection
• Dual secondary windings enable versatile output configurations including parallel and series arrangements
• Laminated core construction ensures stable performance and efficient magnetic coupling

Power Transformers Applications

• Industrial control systems requiring isolated AC power
• Consumer electronics with multiple voltage rail requirements
• Medical equipment needing certified isolation barriers

Power Transformers Procurement Notes

Verify that the specific order matches the 3FD-520 designation to ensure correct voltage and current ratings. Confirm compliance with UL and CSA safety standards required for your region. Check RoHS and REACH SVHC documentation for environmental regulations. Ensure PCB layout accommodates the specified dimensions and through-hole termination style before finalizing procurement.

Power Transformers Selection Notes

Select this component when dual isolated secondary voltages are necessary from a single transformer unit. The 12 VA rating suits moderate power applications. Verify that the physical footprint fits within the available board space. Consider the thermal dissipation characteristics inherent to laminated core designs under full load conditions.

Power Transformers Part Context

This part belongs to the Tamura 3FD series of power transformers. The series offers various power ratings and voltage combinations. The 3FD-520 specifically addresses needs for higher current outputs compared to lower-rated variants in the same family. It utilizes standard PC pin terminations for reliable mechanical and electrical connections on printed circuit boards.

Power Transformers Replacement Considerations

Direct substitutes must match the 12 VA rating, 115/230 VAC primary, and 10/20 VAC secondary specifications. Verify identical package dimensions and pinout configurations to ensure mechanical compatibility. Cross-reference safety certifications such as UL and CSA if regulatory compliance is mandatory for the end application.