B85321A2205A750

Overview

The B85321A2205A750 is a feed-through capacitor from the EPCOS B85321 series, designed for electromagnetic interference suppression. It features a metal package with threaded terminals and panel mount installation. Key electrical parameters include a rated voltage of 250 V AC (50/60 Hz) or 600 V DC, and a rated current of 75 A at 40 °C. The capacitance is 1 µF with a tolerance of 20%. The component operates within a temperature range of -40 °C to +85 °C. Physical dimensions are 30 mm diameter by 81 mm height. Insertion loss reaches 100 dB at maximum frequency.

Feature Summary

• Provides effective electromagnetic interference suppression through feed-through capacitor technology.
• Utilizes a robust metal package construction suitable for demanding environments.
• Supports high current handling capabilities for power line applications.

Applications

• Industrial equipment EMC filtering
• Power supply input stages
• Control cabinet wiring protection

Procurement Notes

Verify the specific suffix code against official TDK documentation to confirm exact ratings and terminal configuration. Ensure compatibility with panel cutout dimensions and torque specifications during installation. Confirm RoHS compliance status if required by project standards. Cross-reference datasheet revisions to ensure parameter accuracy.

Selection Notes

Select this component when high current capacity and low impedance filtering are required for AC or DC lines. Consider the physical size constraints due to the cylindrical metal housing. Evaluate thermal derating requirements if operating temperatures exceed 40 °C. Verify that the threaded mounting style fits the available chassis space.

Part Context

This part belongs to the B85321 series of feed-through capacitors manufactured by EPCOS, now part of the TDK Group. These components are engineered for reliable noise suppression in industrial and automotive applications. The series offers various capacitance values and voltage ratings to suit different circuit requirements while maintaining consistent mechanical and electrical performance characteristics.

Replacement Considerations

Consult official TDK substitution guides for verified alternatives. Ensure any replacement matches the 75 A current rating and 250 V AC / 600 V DC voltage specifications. Verify identical physical dimensions for panel mounting compatibility. Confirm equivalent insertion loss performance across the target frequency spectrum.