B85121A2504A101

Overview

The B85121A2504A101 is a feedthrough capacitor from the B85121 series, manufactured by EPCOS (TDK Electronics). It features a capacitance of 0.5 µF with a ±20% tolerance and a rated operating voltage of 600V. The component supports a current flow of 100 A and operates within a temperature range of -40°C to +85°C. It utilizes axial threaded terminals with M8 thread specification. The physical dimensions are 55.00mm in diameter and 60.00mm in length. The device provides an insertion loss of 90dB at 100MHz.

Feature Summary

• Provides high-frequency noise suppression through feedthrough capacitor architecture
• Supports high current handling capability for robust power line filtering
• Features axial threaded terminal design for secure mechanical mounting

Applications

• Power line filtering in industrial equipment
• EMI suppression in electronic control units
• Noise reduction in high-current DC/AC circuits

Procurement Notes

Verify component authenticity as this part is marked obsolete. Confirm availability through authorized distributors or surplus channels. Check for RoHS compliance status and REACH registration details. Ensure storage conditions maintain component integrity given its age. Validate terminal specifications against application requirements before procurement.

Selection Notes

Select this component for applications requiring high current handling and specific axial mounting constraints. Consider the 600V rating and 0.5 µF capacitance for targeted filtering needs. Evaluate the M8 threaded interface compatibility with existing chassis designs. Assess thermal performance within the specified -40°C to +85°C operational range.

Part Context

This component belongs to the B85121 series of feedthrough capacitors produced by TDK Electronics. The series is designed for effective electromagnetic interference suppression in power electronics. TDK Electronics acquired EPCOS AG, integrating these components into their broader passive component portfolio. The product represents a specialized solution for high-reliability filtering applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. The component status is listed as obsolete. Engineers should consult official TDK Electronics resources for potential cross-reference alternatives or updated series replacements that meet similar electrical and mechanical specifications.