B85321A2945A630

Overview

The B85321A2945A630 is a single-line feedthrough capacitor manufactured by EPCOS - TDK Electronics. It belongs to the B85321 series of electromagnetic interference (EMI) filters. The component features a rated voltage of 250 V AC at 50/60 Hz and 600 V DC. Its rated current is specified relative to a 40 °C rated temperature, with reduced current values applicable at 400 Hz. This device functions as a pass-through capacitor designed for effective noise suppression in electrical circuits.

Feature Summary

• Provides electromagnetic interference filtering through feedthrough architecture
• Supports high direct current voltage ratings alongside standard alternating current specifications
• Designed for integration into power lines requiring robust noise attenuation

Applications

• Industrial machinery power supply filtering
• Electrical control cabinet noise suppression
• Power electronics equipment EMI mitigation

Procurement Notes

Verify the specific datasheet version for the B85321A2945A630 to confirm exact capacitance and impedance characteristics required for your circuit design. Ensure that the thermal environment does not exceed the 40 °C reference temperature without applying appropriate current derating factors. Confirm mechanical mounting requirements align with the bulk package style before finalizing procurement orders.

Selection Notes

Select this component when high current handling capability combined with significant voltage isolation is necessary for EMI suppression. The feedthrough design offers superior performance compared to traditional surface mount capacitors in high-power applications. Consider the physical size constraints and the need for panel mounting or chassis integration when evaluating this part against alternative filter solutions.

Part Context

This component is part of the broader B85321 series of feedthrough filters produced by EPCOS, which has merged its passive components business with TDK Corporation. These components are engineered to meet stringent electromagnetic compatibility standards. The product line supports various industrial and commercial applications where reliable noise filtration and stable operation under high electrical stress are critical requirements.

Replacement Considerations

Consult official TDK documentation for verified substitute part numbers within the B85321 series that match specific current and voltage requirements. Cross-referencing with other manufacturers requires careful validation of impedance curves and thermal ratings to ensure equivalent performance in the target application.