CM1812B113R-1A

Overview

The CM1812B113R-1A is a two-line common mode choke from the Laird CM Series, designed for automotive signal line applications. It features an inductance of 11 µH at 100 kHz and provides 600 Ohms impedance at 10 MHz. The component has a maximum DC resistance (DCR) of 600 mOhm and supports a rated current of 360 mA. It utilizes a surface mount package with dimensions of 4.57mm x 3.05mm.

Feature Summary

• Provides effective electromagnetic interference filtering for automotive signal lines
• Designed to improve system performance and reliability in harsh environments
• Compact surface mount footprint suitable for space-constrained PCB layouts

Applications

• Automotive CAN-Bus networks
• Automotive LIN-Bus systems
• General automotive signal line protection

Procurement Notes

Verify the specific suffix '1A' against official datasheets to confirm material composition and compliance status. Confirm RoHS and REACH regulatory standing prior to integration. Ensure the selected variant matches the required automotive qualification standards for the target application environment.

Selection Notes

Select this component when designing for automotive bus protocols requiring moderate inductance and high impedance at lower frequencies. Compare DCR and current ratings against circuit requirements. Evaluate physical dimensions against available board space constraints relative to other CM series variants.

Part Context

This part belongs to the Laird CM Series, specifically engineered for automotive signal integrity. The series includes various inductance values tailored for different bus speeds and noise profiles. The CM1812B113R-1A represents a specific configuration within this family optimized for standard automotive communication lines.

Replacement Considerations

Consult the official Laird Part Number Guide for direct substitutes within the CM1812B series. Verify electrical equivalence for inductance and impedance before swapping.