The Coilcraft 1812CAN-104NRC is a high-performance common mode choke designed for CAN (Controller Area Network) bus applications. This component is manufactured by Coilcraft, a leading provider of magnetic components, and is specifically engineered to suppress common mode noise while allowing differential signals to pass through with minimal distortion.

Applications

• Automotive CAN bus systems
• Industrial CAN bus networks
• Networking and data communication equipment
• Motor control systems
• Medical equipment

Features

• High common mode attenuation: Effectively suppresses noise on the CAN bus.
• Low differential mode insertion loss: Minimizes signal degradation.
• Compact size: Suitable for space-constrained applications.
• High current handling capability: Designed to handle the currents typically found in CAN bus systems.
• RoHS compliant: Meets environmental standards for hazardous substance reduction.

Benefits

• Improved signal integrity: Reduces noise and interference, leading to more reliable communication.
• Enhanced system performance: Minimizes errors and improves data transmission rates.
• Increased system reliability: Protects against common mode noise-induced failures.
• Reduced EMI emissions: Helps systems meet regulatory compliance requirements.
• Simplified system design: Provides a convenient solution for noise suppression.

Additional Details

The 1812CAN-104NRC common mode choke is typically constructed with a ferrite core and multiple windings to provide high impedance to common mode currents while presenting low impedance to differential mode signals. The 1812 package size indicates the physical dimensions of the component. The '104' designation in the part number usually relates to the impedance value (100,000 Ohms at a specific frequency). The 'NRC' suffix may indicate specific performance characteristics or termination options. Detailed specifications, including common mode attenuation vs. frequency, differential mode insertion loss, current rating, and operating temperature range, can be found in the product datasheet provided by Coilcraft. It's crucial to consult the datasheet to ensure the choke meets the specific requirements of the CAN bus application. Proper placement and termination of the choke on the PCB are essential for optimal performance. Additionally, it should be noted that the CAN bus requires proper termination resistors to ensure proper signal transmission and minimize reflections.