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Product Detailed Parameters
- Description：CAP FEEDTHRU
- Series：B85321
- Mfr：EPCOS - TDK Electronics
- Package：Bulk
- Voltage - Rated：-
- Current：-
- Operating Temperature：-
- Mounting Type：-
- Package / Case：-
- Size / Dimension：-
- Capacitance：-
- Tolerance：-
- DC Resistance (DCR) (Max)：-
- Insertion Loss：-
- Temperature Coefficient：-
- Ratings：-
- Height (Max)：-
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Overview
The B85321A2105A101 is a feed-through capacitor from the EPCOS (TDK) B85321 series, designed for AC power line filtering. It features a metal package with panel mount installation. The component has a rated voltage of 250 V AC (50/60 Hz) and 600 V DC, with a rated current of 75 A at 40 °C. Physical dimensions are 30 mm diameter by 81 mm height. It operates within a frequency range of 0.01 MHz to 1000 MHz, providing insertion loss between 5 dB and 100 dB.
Feature Summary
- Provides high-frequency electromagnetic interference suppression via feed-through architecture
- Supports high continuous current loads in AC power applications
- Constructed with a robust metal housing for durable panel mounting
Applications
- AC power line filtering in industrial equipment
- Electromagnetic compatibility (EMC) mitigation in electronic systems
- Power supply input stages requiring high current handling
Procurement Notes
Verify the specific suffix code against official TDK documentation to confirm exact electrical tolerances and terminal configurations. Ensure the selected variant matches the required rated voltage and current specifications for the target application environment. Cross-reference physical dimensions to confirm compatibility with existing panel cutouts and mounting hardware constraints.
Selection Notes
Select this component based on its 75 A rated current capacity and 250 V AC voltage rating. Consider the physical size constraints due to the 30 mm diameter and 81 mm height. Evaluate the insertion loss characteristics relative to the specific frequency spectrum of the noise to be suppressed. Confirm compliance with relevant environmental standards such as RoHS if required by the end product regulations.
Part Context
This component belongs to the B85321 series of feed-through filters manufactured by EPCOS, now part of the TDK Group. These components are engineered for effective noise suppression in power lines, utilizing a coaxial design that integrates the capacitor directly into the conductor path. The series is known for reliability in demanding industrial and commercial environments.
Replacement Considerations
Consult official TDK substitution guides for verified equivalents. Generic cross-references may not match the precise insertion loss curves or current ratings.
