B85321A2105A630

Overview

The B85321A2105A630 is an AC feed-through capacitor manufactured by EPCOS (TDK Electronics). It features a metal package designed for panel mounting. The component has a rated voltage of 250 V AC at 50/60 Hz and 600 V DC. It supports a rated current of 75 A, referenced to a 40 °C rated temperature. The device operates within a frequency range from 0.01 MHz to 1000 MHz. Physical dimensions are approximately 30 mm in diameter and 81 mm in height. Insertion loss reaches 100 dB at maximum frequency.

Feature Summary

• Provides high-performance electromagnetic interference suppression through feed-through technology.
• Utilizes a robust metal package construction suitable for demanding industrial environments.
• Capable of handling high continuous current loads with significant thermal stability.

Applications

• Power supply input filtering for industrial machinery
• Electromagnetic compatibility protection in railway systems
• High-power electronic equipment noise reduction

Procurement Notes

Verify the specific suffix against official TDK documentation to confirm exact electrical ratings and physical tolerances. Ensure the procurement specification matches the required AC or DC voltage rating. Confirm that the panel mount interface aligns with the installation hardware. Request the latest datasheet to validate compliance with current environmental directives and material specifications before finalizing orders.

Selection Notes

Select this component when high current capacity and low impedance at high frequencies are required. The metal housing offers superior shielding compared to plastic alternatives. Consider the physical size constraints as the unit requires dedicated panel space. Evaluate the thermal environment to ensure the rated current remains valid under operating conditions. This filter is ideal for applications needing robust noise attenuation without signal degradation.

Part Context

This component belongs to the B85321 series of feed-through filters from EPCOS, now part of TDK Electronics. These components are engineered for effective EMI suppression in power lines. The series is widely recognized for reliability in critical infrastructure. The design integrates the capacitor directly into the conductive path, minimizing parasitic inductance for optimal high-frequency performance.

Replacement Considerations

Public confirmed substitute part numbers: B85321A2105A750, B85321A2105A630.