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Product Detailed Parameters
- Description：CAP FEEDTHRU
- Series：B85321
- Mfr：EPCOS - TDK Electronics
- Package：Bulk
- Voltage - Rated：-
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- DC Resistance (DCR) (Max)：-
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Overview
The B85321A2945A201 is a feed-through capacitor from the TDK Electronics B85321 series, designed for electromagnetic interference (EMI) suppression. It features a rated voltage of 250 V AC at 50/60 Hz and 600 V DC. The component supports a rated current referred to a 40 °C ambient temperature, with specific reductions required when operating at 400 Hz. This pass-through filter utilizes a robust construction suitable for high-frequency noise attenuation in power lines.
Feature Summary
- Provides effective EMI suppression through feed-through capacitor technology
- Supports dual voltage ratings for AC and DC applications
- Designed for direct mounting on panel or chassis openings
Applications
- Industrial power supply filtering
- Medical equipment EMC compliance
- Telecommunications infrastructure noise reduction
Procurement Notes
Verify the complete part number including suffixes to ensure correct termination and capacitance values. Confirm that the rated current specifications align with your system's thermal environment, as derating is necessary at elevated temperatures or higher frequencies such as 400 Hz. Ensure compatibility with standard panel mounting dimensions.
Selection Notes
Select this component based on its 250 V AC / 600 V DC rating and required attenuation characteristics. Consider the physical size constraints for panel penetration and verify that the rated current capacity meets the load requirements without excessive heating. Check for RoHS compliance if required by your manufacturing standards.
Part Context
This component belongs to the B85321 series of feed-through filters manufactured by TDK Electronics, formerly known as EPCOS. These components are widely used in industrial and medical applications where strict EMC regulations must be met. The series offers various capacitance values and voltage ratings to suit different power line filtering needs.
Replacement Considerations
Consult official TDK documentation for cross-references. Generic equivalents may not match the precise impedance characteristics or mechanical mounting requirements of the B85321 series.
