TLF9UA302WR42K1

Overview

The TLF9UA302WR42K1 is a through-hole common mode choke coil designed for AC line applications. It features an inductance of 3 mH at 1 kHz and supports a current rating of 420 mA. The component has a DC resistance (DCR) of 1.5 Ohms. It utilizes a bulk packaging format and belongs to the TLF9 series of passive components manufactured by Taiyo Yuden.

Feature Summary

• Designed specifically for filtering noise on AC power lines
• Through-hole construction for robust mechanical mounting
• Two-line configuration for differential signal suppression

Applications

• AC power line filtering
• Noise suppression in electronic equipment power inputs
• EMI reduction in consumer electronics

Procurement Notes

Verify component status as this specific part number may be listed as obsolete in some distributor catalogs. Confirm availability with authorized suppliers or check for updated replacement series from Taiyo Yuden. Ensure the through-hole package dimensions match your PCB layout requirements before ordering.

Selection Notes

Select this component when a 3 mH inductance at low frequencies is required for AC line noise attenuation. The 420 mA current rating suits moderate power applications. Consider the 1.5 Ohm DCR impact on voltage drop. Verify that through-hole mounting is compatible with the assembly process.

Part Context

This component is part of the Taiyo Yuden TLF9 series, which specializes in leaded common mode chokes. These coils are engineered for electromagnetic interference (EMI) suppression in AC circuits. The series offers various inductance values tailored for different power line filtering needs.

Replacement Considerations

Check for direct replacements within the TLF9 series with similar inductance and current ratings. Consult Taiyo Yuden documentation for end-of-life notices and recommended alternative part numbers if this item is discontinued.