B82722A2172N001

Overview

The B82722A2172N001 is a current-compensated ring core double choke manufactured by EPCOS (TDK). It features a ferrite core and a rectangular construction with four radial leads. The component has a nominal inductance of 4000 µH per winding, a maximum DC resistance of 0.175 Ω, and supports a rated current up to 1.7 A. It operates within a temperature range of -40 °C to +125 °C and withstands a test voltage of 1500 V AC between lines for two seconds.

Feature Summary

• Current-compensated design utilizing a ring core structure for effective common-mode noise suppression
• Dual-winding configuration providing balanced filtering capabilities for power line applications
• Robust insulation system capable of withstanding high transient voltages between windings

Applications

• Power supply input filtering for electronic equipment
• EMI suppression in AC mains circuits
• Common-mode noise reduction in industrial control systems

Procurement Notes

Verify the specific suffix code against the manufacturer's official datasheet to confirm exact electrical tolerances and material specifications. Ensure the ordered part matches the required lead spacing and mounting orientation for your PCB layout. Confirm RoHS compliance status if mandated by your regional regulations or end-product requirements.

Selection Notes

Select this component when designing circuits requiring high common-mode impedance at low frequencies. The 4000 µH value provides significant attenuation for differential mode interference. Ensure the operating current remains below the rated limit to prevent saturation. The rectangular package allows for stable mechanical mounting on standard PCB layouts.

Part Context

This part belongs to the B82722 series of current-compensated ring core double chokes from EPCOS. These components are engineered for general-purpose power line filtering. The series offers various inductance values to suit different noise profiles while maintaining a consistent physical footprint and mounting style for design flexibility.

Replacement Considerations

Direct substitutes include other B82722 series variants with identical inductance and current ratings. Verify that any replacement maintains the same 250 V AC rating and 1500 V AC test voltage capability. Check that the physical dimensions and terminal pitch match the existing board space constraints.