B82791H2152N010

Overview

The B82791H2152N010 is a compact current-compensated ring core double choke manufactured by EPCOS, part of the TDK Electronics portfolio. Designed for power line applications, this component features a vertical through-hole package with four pins and measures 15.30 mm in length and 7.40 mm in width. It operates within an ambient temperature range of -40°C to +125°C and holds approvals from ENEC, UR, and VDE agencies.

Feature Summary

• Provides effective common-mode filtering at frequencies exceeding 300 MHz due to specialized magnetic core materials
• Eliminates the need for potting or adhesives, resulting in high resonance frequency and superior saturation capability
• Incorporates up to 10% stray inductance to effectively suppress symmetric interference signals

Applications

• LED driver circuits requiring high-frequency noise suppression
• Switched-mode power supply (SMPS) input stages
• Post-design EMC fine-tuning on semi-finished PCBs

Procurement Notes

Verify that the specific order matches the B82791H2152N010 designation to ensure correct inductance and current ratings. Confirm compliance requirements such as UL94 V-0 flammability and GWIT/GWFI specifications if used in industrial environments. Check for recent manufacturer updates regarding material composition or approval agency status before finalizing procurement contracts.

Selection Notes

Select this component when space constraints require a small footprint for power line filtering. It is suitable for designs needing robust performance without encapsulation. Consider its current rating and voltage tolerance against circuit demands. Ensure the vertical pin configuration fits the target PCB layout and assembly process requirements.

Part Context

This component belongs to the B82791H series of compact current-compensated ring core double chokes. The series is engineered for high-frequency EMC applications where size and efficiency are critical. These chokes are widely used in consumer electronics and industrial equipment to meet stringent electromagnetic compatibility standards.

Replacement Considerations

Direct substitutes include other B82791H series variants with similar electrical characteristics. Verify pinout compatibility and physical dimensions before swapping. Consult official TDK documentation for cross-reference lists to ensure equivalent performance in the target application.