B85121A2205A201

Overview

The B85121A2205A201 is a feedthrough capacitor from the TDK Electronics B85121 series. It features a capacitance of 2 µF and a rated voltage of 600V. The component supports a current rating of 200 A and provides an insertion loss of 90 dB at 100 MHz. It utilizes axial threaded terminals with M8 thread specification. The physical dimensions are 55.00 mm in diameter and 60.00 mm in length. The operating temperature range extends from -40°C to 85°C. This part is classified as obsolete.

Feature Summary

• Provides high-frequency electromagnetic interference suppression through feedthrough architecture
• Supports high continuous current loads up to 200 A
• Features robust axial threaded mounting for secure installation

Applications

• Industrial power supply filtering
• Electromagnetic compatibility (EMC) mitigation in electronic systems
• High-current DC line noise suppression

Procurement Notes

This component is officially listed as obsolete by the manufacturer. Verify availability through secondary market channels or authorized distributors holding remaining stock. Confirm manufacturing date codes and storage conditions prior to acquisition, as long-term storage may affect performance. Ensure design-in decisions account for end-of-life status and potential supply chain discontinuation risks.

Selection Notes

Select this component when high current handling and specific axial threaded mounting are required. Compare against similar B85121 series variants for different capacitance or voltage ratings. Evaluate mechanical fit within existing chassis designs due to fixed dimensional constraints. Consider alternative active or passive filtering solutions if new production volumes require currently manufactured components.

Part Context

The B85121A2205A201 belongs to the B85121 series of feedthrough capacitors manufactured by TDK Electronics, formerly EPCOS. These components are designed for effective noise suppression in power lines. The series is known for high current capability and reliable performance in industrial environments. TDK Electronics continues to support legacy product lines while transitioning newer technologies.

Replacement Considerations

Verify direct substitutes within the B85121 series such as B85121A2205A101 for similar specifications. Check for updated generations with identical electrical parameters but improved availability. Consult manufacturer documentation for cross-reference lists to ensure functional equivalence in critical applications.