PA3747.405NL

Common Mode Chokes Overview

The PA3747.405NL is a two-channel common mode choke manufactured by Pulse Electronics, designed for vertical through-hole mounting on printed circuit boards. It features an unshielded power line configuration with an inductance of 2.68 mH and a tolerance of 20%. The component exhibits an impedance of 11.57 kOhms at its self-resonant frequency of 940 kHz. It supports a maximum DC current of 2.25 A and has a maximum DC resistance of 71.5 mOhms. The unit operates within a temperature range of -40°C to +125°C and measures 19.3 mm in length, 18.2 mm in width, and 22.9 mm in height.

Common Mode Chokes Feature Summary

• Provides dual-line common mode noise suppression for power circuits
• Utilizes vertical through-hole termination for secure PCB integration
• Features an unshielded design suitable for standard power line applications

Common Mode Chokes Applications

• Power line filtering in electronic equipment
• Common mode noise reduction in dual-channel circuits
• EMI suppression in industrial control systems

Common Mode Chokes Procurement Notes

Verify the specific part number PA3747.405NL against official Pulse Electronics documentation to confirm electrical parameters such as 2.68 mH inductance and 2.25 A current rating. Ensure the vertical through-hole package dimensions match the target PCB footprint. Confirm RoHS compliance status and operating temperature range requirements align with the system specifications before finalizing procurement decisions.

Common Mode Chokes Selection Notes

Select this component when dual-channel common mode filtering is required for power lines with currents up to 2.25 A. The unshielded construction may influence placement relative to sensitive components. Verify that the 71.5 mOhm DC resistance meets voltage drop constraints. Ensure the vertical mounting style fits within the available board clearance and that the 125°C maximum operating temperature satisfies environmental conditions.

Common Mode Chokes Part Context

This component belongs to the Pulse Electronics common mode choke family, specifically categorized under data line filters and power line chokes. It is engineered for through-hole assembly, distinguishing it from surface-mount alternatives. The product falls within the broader category of inductors, chokes, and coils used for electromagnetic interference mitigation in various electronic assemblies.

Common Mode Chokes Replacement Considerations

Cross-reference with other Pulse Electronics PA3747 series variants if different inductance or current ratings are needed. Verify pin compatibility and mechanical dimensions before substituting with components from other manufacturers to ensure proper fit and function.