UU9LFNP-B-B392

Overview

The UU9LFNP-B-B392 is a through-hole common mode choke from the Sumida UU Series. It features an inductance of 3.9 mH and a maximum DC resistance of 1.2 Ohms. The component supports a maximum DC current of 380 mA. Its physical dimensions are 16.5 mm in length, 11 mm in width, and 16.5 mm in height. It operates within a temperature range of -40°C to +85°C.

Feature Summary

• Provides common mode noise filtering for AC power lines
• Designed for through-hole PCB mounting
• Constructed for low-frequency interference suppression

Applications

• AC line filtering in electronic equipment
• Power supply input stages
• EMI suppression in consumer electronics

Procurement Notes

Verify the specific part number suffix against official Sumida documentation to confirm electrical parameters such as inductance and current ratings. Ensure the through-hole package style matches the target PCB footprint. Confirm compliance with RoHS directives if required by the end application specifications.

Selection Notes

Select this component when a 3.9 mH inductance value is required for common mode noise reduction. The 380 mA current rating must align with the circuit's operational requirements. Verify that the 1.2 Ohm DC resistance does not cause excessive voltage drop or heating in the specific application design.

Part Context

This component belongs to the Sumida UU9LFB series of common mode chokes. The series offers various inductance values and current ratings for different filtering needs. The UU9LFNP variant specifically denotes the through-hole mounting configuration within this product family.

Replacement Considerations

Consult Sumida datasheets for alternative part numbers within the UU9LFNP series that offer compatible inductance and current ratings. Verify pin compatibility and physical dimensions before substituting.