PA2743NL

Common Mode Chokes Overview

The PA2743NL is a surface-mount common mode choke manufactured by Pulse Electronics. It features a toroidal core design with an inductance of 383 uH and a DC resistance of 18 mOhms. The component supports a maximum DC current of 3.3 A and operates within a temperature range of -40 C to +125 C. Its impedance is 1.4 kOhms, and the self-resonant frequency is 2.5 MHz. Physical dimensions are 13 mm in length, 13 mm in width, and 5.6 mm in height.

Common Mode Chokes Feature Summary

• Surface mount toroidal construction for compact PCB integration
• High current handling capability up to 3.3 A
• Low DC resistance for efficient power transmission

Common Mode Chokes Applications

• Common mode noise suppression in electronic circuits
• EMI filtering for power lines
• Signal integrity protection in high-speed data interfaces

Common Mode Chokes Procurement Notes

Verify the specific datasheet revision and product change notifications prior to ordering. Confirm that the surface mount package dimensions and pin configuration match the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference manufacturer part numbers to avoid counterfeit components.

Common Mode Chokes Selection Notes

Select this component when low DC resistance and high current capacity are required for common mode noise reduction. The 383 uH inductance provides effective filtering for specific frequency ranges. Verify that the 1.4 kOhms impedance rating aligns with the system's EMI suppression needs. Consider the 5.6 mm height constraint for board clearance during layout.

Common Mode Chokes Part Context

This component belongs to the Pulse Electronics common mode choke family designed for surface mount applications. It utilizes a toroidal geometry to maximize inductance while minimizing electromagnetic interference leakage. The series is engineered for reliability in industrial and consumer electronics environments requiring robust noise filtering.

Common Mode Chokes Replacement Considerations

Consult official substitution lists from Pulse Electronics for verified alternatives. Ensure replacement parts maintain identical inductance, current ratings, and physical dimensions. Verify compatibility with existing PCB footprints and soldering profiles before implementation.