3FL40-150

Power Transformers Overview

The Tamura 3FL40-150 is a laminated core power transformer with a 6VA rating. It features primary windings rated for 115V and 230V, configurable in parallel. The secondary configuration offers dual outputs: 20V at 300mA in parallel or 40V center-tapped at 150mA in series. Designed for through-hole mounting, the unit measures 47.60mm in length and 39.60mm in width.

Power Transformers Feature Summary

• Laminated core construction for standard power isolation
• Dual primary voltage support for global compatibility
• Flexible secondary winding options for varied output requirements

Power Transformers Applications

• General purpose AC power supply circuits
• Industrial control equipment power stages
• Consumer electronics internal power conversion

Power Transformers Procurement Notes

Verify the specific datasheet version to confirm insulation class and thermal ratings. Ensure the selected pinout matches the target PCB footprint dimensions of 47.60mm by 39.60mm. Confirm that the through-hole termination style aligns with the assembly process capabilities. Cross-reference the primary voltage configuration against the input source specifications.

Power Transformers Selection Notes

Select this component when a 6VA isolation barrier is required between primary and secondary circuits. Choose the parallel secondary mode for higher current availability at lower voltage. Opt for the series center-tapped mode when higher voltage with reduced current is necessary. Ensure the physical envelope fits within the constrained mechanical space of the design.

Power Transformers Part Context

This model belongs to the 3FL series of low-profile transformers manufactured by Tamura. The series utilizes laminated core technology rather than toroidal designs. It serves as a standard solution for applications requiring reliable galvanic isolation with moderate power handling capabilities in a compact form factor.

Power Transformers Replacement Considerations

The 3FL40-300 is a documented substitute offering identical physical dimensions but with a 12VA rating. Verify that the increased power capacity does not exceed the thermal limits of the enclosure. Ensure the electrical parameters remain compatible with the existing circuit design.