TFI 150

Power Line Filter Modules Overview

The TFI 150 is a DC EMC/EMI line filter and surge protector manufactured by Traco Power. It features a compact plastic package measuring approximately 1.6 inches by 1 inch. The unit is designed for PCB mounting and provides electromagnetic compatibility and interference suppression. It handles transients up to 385V DC for durations of 20ms, complying with the RIA12 standard. The filter clamps momentary over-voltage transients to protect downstream DC/DC converters from damage.

Power Line Filter Modules Feature Summary

• Clamps momentary over-voltage transients to safe values to protect downstream components
• Complies with the strict RIA12 standard for railway applications
• Provides electromagnetic compatibility and interference suppression in a compact form factor

Power Line Filter Modules Applications

• Railway applications requiring protection against high voltage transients
• Protection for 72V DC battery systems
• Protection for 96V DC battery systems
• Protection for 110V DC battery systems

Power Line Filter Modules Procurement Notes

Verify the specific datasheet version and compliance certifications (such as RIA12) required for your target application. Confirm that the input voltage range and transient handling capabilities align with your system's electrical specifications before procurement.

Power Line Filter Modules Selection Notes

Select this component when protecting sensitive DC/DC converters from high-energy surges in industrial or railway environments. Ensure the input voltage does not exceed the active clamping threshold of 168V DC during normal operation to maintain expected performance characteristics.

Power Line Filter Modules Part Context

The TFI 150 belongs to the TFI series of power line surge filters from Traco Power. This series includes variants with different power ratings, such as the TFI 20 and TFI 300. These filters are specifically engineered to be placed at the input of DC/DC converters to ensure system reliability under harsh electrical conditions.

Power Line Filter Modules Replacement Considerations

Check for other models within the TFI series, such as the TFI 20 or TFI 300, if power rating or package size requirements differ. Verify that any substitute maintains the necessary RIA12 compliance and transient voltage clamping capabilities.