PA2748NL

Common Mode Chokes Overview

The PA2748NL is a surface-mount common mode choke manufactured by Pulse Electronics. It features a toroidal core design with two lines of operation. The component provides an inductance of 1125 uH and a common mode impedance of 1.4 kOhms at 100 MHz. It supports a maximum DC current of 1.8 A with a maximum DC resistance of 55 mOhms. The self-resonant frequency is 2.5 MHz. Operating temperatures range from -40 C to +125 C. Physical dimensions are 13 mm length, 13 mm width, and 5.6 mm height.

Common Mode Chokes Feature Summary

• Dual-line configuration for effective noise suppression in differential signal paths
• Toroidal core construction providing high magnetic efficiency and compact footprint
• Surface mount termination style suitable for automated PCB assembly processes

Common Mode Chokes Applications

• High-speed data line filtering in industrial communication interfaces
• Noise suppression for USB and Ethernet ports in consumer electronics
• EMI reduction in power supply input stages requiring common mode rejection

Common Mode Chokes Procurement Notes

Verify the specific datasheet revision prior to ordering, as product change notifications may alter physical or electrical characteristics. Confirm that the surface mount package dimensions align with the designated PCB land pattern. Ensure the selected component meets the required thermal management standards for the intended operating environment. Cross-reference the manufacturer part number directly with official distributor catalogs to avoid counterfeit components.

Common Mode Chokes Selection Notes

Select this component when high inductance values are required for low-frequency noise attenuation alongside moderate current handling capabilities. The low DC resistance minimizes power loss in series applications. Evaluate the self-resonant frequency to ensure effective performance within the target interference spectrum. Consider the temperature rating if the application involves significant ambient heat generation or extreme environmental conditions.

Common Mode Chokes Part Context

This component belongs to the Pulse Electronics PA2748 series of common mode chokes. The series offers various inductance and current ratings tailored for different signal integrity requirements. These devices are designed to replace traditional through-hole solutions with more space-efficient surface mount alternatives. The series is widely used in telecommunications and computing hardware for EMI compliance.

Common Mode Chokes Replacement Considerations

Direct substitutes include other 1125 uH dual-line SMD chokes with similar current ratings. Verify impedance curves and saturation characteristics when considering alternative manufacturers. Ensure pin compatibility and mechanical fit for existing board layouts.