B85121A2105A101

Overview

The B85121A2105A101 is an EPCOS (TDK) feed-through capacitor designed for electromagnetic compatibility filtering. It features a capacitance of 1 µF with ±20% tolerance and a rated voltage of 600 V. The component supports a continuous current rating of 100 A and operates within a temperature range of -40°C to +85°C. Housed in an axial threaded package, it provides effective isolation in harsh electromagnetic environments.

Feature Summary

• Provides effective filtering and isolation in demanding electromagnetic interference scenarios
• Supports high continuous current flow through the central conductor
• Utilizes a robust axial threaded housing for secure mechanical mounting

Applications

• Electromagnetic compatibility filtering in industrial electronics
• Power supply input/output noise suppression
• Harsh environment electronic system protection

Procurement Notes

Verify the specific ordering suffix against official TDK documentation to ensure correct tolerance and voltage ratings. Confirm that the axial threaded package style matches the mechanical requirements of the target assembly. Cross-reference the 100 A current rating and 600 V voltage specifications with the application circuit design to prevent derating issues during operation.

Selection Notes

Select this component when high current handling and significant capacitance are required in a single feed-through configuration. The 600 V rating suits medium-voltage applications, while the 1 µF value offers substantial low-frequency attenuation. Ensure the installation environment remains within the specified -40°C to +85°C operational limits for reliable performance.

Part Context

This part belongs to the EPCOS feed-through capacitor series, which integrates capacitive filtering directly into the connector structure. These components are engineered to suppress conducted electromagnetic interference across power lines. The axial threaded design allows for direct panel mounting, providing a short, low-inductance path for noise currents to ground.

Replacement Considerations

Consult official TDK substitution lists for verified equivalents. Generic cross-references may not match the precise 100 A current rating or 600 V insulation requirements. Verify mechanical dimensions and thread specifications before replacing to ensure proper fit and electrical continuity.