B82722A2501N022

Overview

The B82722A2501N022 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It features a ferrite core and rectangular construction with four terminals. The component has a nominal inductance of 47000 µH and a maximum DC resistance of 1.5 Ω. It is rated for 250 V AC and supports a maximum rated current of 0.5 A. The operating temperature range spans from -40 °C to +125 °C. Physical dimensions include a height of 13.3 mm, length of 22.7 mm, and width of 22.3 mm.

Feature Summary

• Current-compensated design utilizing a ring core structure for effective common-mode noise suppression
• RoHS compliant construction ensuring environmental safety standards are met
• Dual-function configuration providing two independent inductive elements within a single package

Applications

• Power line chokes for AC mains filtering
• EMI suppression in general purpose power supplies
• Common mode interference reduction in electronic equipment

Procurement Notes

Verify the specific ordering suffix against official EPCOS documentation to confirm exact electrical tolerances and terminal configurations. Ensure the requested part matches the required inductance value of 47 mH and current rating of 0.5 A. Confirm compliance with RoHS directives and check for any specific agency approvals such as ENEC or UR if required for your target market. Cross-reference the manufacturer date code to ensure component freshness.

Selection Notes

Select this component when high inductance values are required for low-current applications up to 0.5 A. The wide operating temperature range makes it suitable for harsh environments. Consider the physical footprint constraints as the rectangular housing measures 22.7 mm by 22.3 mm. Verify that the 1.5 Ω DC resistance aligns with your circuit's power loss requirements. Ensure the 250 V AC voltage rating exceeds the peak line voltage in your application.

Part Context

This component belongs to the B82722 series of power line chokes designed for electromagnetic compatibility. These devices are engineered to attenuate common-mode signals on AC power lines. The series offers various inductance options tailored for different current ratings. The B82722A variant specifically denotes the ring core construction type. This family is widely used in industrial and consumer electronics for noise filtering.

Replacement Considerations

Consult official TDK substitution guides for direct equivalents. Verify that any alternative maintains the 47 mH inductance and 0.5 A current rating. Ensure mechanical compatibility with the 4-terminal radial leaded package. Check that replacement parts meet the same thermal and voltage specifications.