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Product Detailed Parameters
- Description：CMC 51UH 250MA 2LN SMD AEC-Q200
- Series：B82789
- Mfr：EPCOS - TDK Electronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Filter Type：Signal Line
- Number of Lines：2
- Current Rating (Max)：250mA
- DC Resistance (DCR) (Max)：550mOhm
- Voltage Rating - DC：80V
- Voltage Rating - AC：42V
- Operating Temperature：-55°C ~ 125°C
- Ratings：AEC-Q200
- Approval Agency：-
- Features：-
- Mounting Type：Surface Mount
- Size / Dimension：0.205" L x 0.126" W (5.20mm x 3.20mm)
- Height (Max)：0.118" (3.00mm)
- Package / Case：Horizontal, 4 L-Lead
- Inductance @ Frequency：51 µH @ 100 kHz
- Impedance @ Frequency：-
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Overview
The B82789C0513N002 is a SIMDAD 1812 common-mode choke designed for data and signal line filtering. It features an inductance of 51 µH, a rated current of 250 mA, and a maximum DC resistance of 55 Ω. The component supports an AC voltage rating of 42 V and a DC voltage rating of 80 V. It operates within a temperature range of -55 °C to +125 °C and holds AEC-Q200 automotive qualification.
Feature Summary
- Provides common-mode noise suppression for differential data lines
- Automotive-grade reliability certified under AEC-Q200 standards
- Compact surface-mount construction suitable for space-constrained designs
Applications
- CAN-BUS interface protection
- Automotive data line filtering
- Signal integrity enhancement in electronic circuits
Procurement Notes
Verify the complete part number including suffixes against official TDK/EPCOS documentation to ensure correct impedance and tolerance specifications. Confirm that the required operating temperature range aligns with the -55 °C to +125 °C specification. Ensure compatibility with the target PCB footprint and reflow soldering profiles specified in the manufacturer's datasheet.
Selection Notes
Select this component when designing systems requiring robust common-mode interference rejection for high-speed data transmission. The 250 mA current rating suits low-power signal lines rather than power delivery applications. Consider the 51 µH inductance value for effective attenuation of specific noise frequencies while maintaining signal fidelity in automotive or industrial communication buses.
Part Context
This component belongs to the B82789 series of SIMDAD chokes manufactured by EPCOS, now part of the TDK Group. These components are engineered specifically for protecting sensitive electronic interfaces against electromagnetic interference. The series offers various inductance values tailored for different data rates and noise environments.
Replacement Considerations
Consult official TDK/EPCOS substitution guides for verified equivalents. Cross-referencing with other manufacturers requires careful validation of inductance, current handling, and physical dimensions to maintain circuit performance.
