PM9408.494NLT

Common Mode Chokes Overview

The PM9408.494NLT is a surface-mount common mode choke from Pulse Electronics, designed for high-current applications. It features an inductance of 290 µH and supports a DC current rating of 21 A. The component provides a common mode impedance of 2 kOhms at 1.1 MHz. Its physical dimensions are 30.5 mm x 27 mm x 18 mm, with a maximum DC resistance of 4 mOhms.

Common Mode Chokes Feature Summary

• Dual-line configuration for effective noise suppression in power circuits
• High current handling capability suitable for demanding power supplies
• Surface mount design for automated assembly integration

Common Mode Chokes Applications

• Switching power supply input filtering
• Server and data center power distribution units
• Industrial motor drive systems

Common Mode Chokes Procurement Notes

Verify the specific datasheet version to confirm impedance curves and thermal derating characteristics. Ensure PCB footprint matches the 30.5 mm x 27 mm outline. Confirm that the 21 A rating aligns with your system's peak load requirements without exceeding thermal limits.

Common Mode Chokes Selection Notes

Select this component when high current capacity and compact surface-mount packaging are required. Compare the 290 µH inductance against circuit ripple specifications. Verify that the 2 kOhm impedance at 1.1 MHz meets EMI reduction targets for the target frequency band.

Common Mode Chokes Part Context

This part belongs to the PM9408.XXXNLT series of common mode chokes. The series offers various inductance values while maintaining similar form factors. It is engineered for robust performance in industrial and commercial power electronics environments requiring reliable noise filtration.

Common Mode Chokes Replacement Considerations

Check PM9408.644NLT for higher inductance (380 µH) but lower current (19 A). Verify PM9408.105NLT for higher inductance (600 µH) but reduced current handling (17 A). Ensure substitute parts match the mechanical footprint and voltage ratings.