The B78416A2118A3 is a series of EPCOS (TDK) common mode chokes designed for signal and data line filtering. These chokes are used to suppress common mode noise, which is a type of electromagnetic interference (EMI) that can disrupt the performance of electronic circuits.

Applications

• Signal and data lines
• Power lines
• CAN bus systems
• USB interfaces
• Ethernet interfaces

Features

• High common mode attenuation
• Compact size
• Low insertion loss
• High impedance
• RoHS compliant

Benefits

• Reduces EMI noise in electronic circuits.
• Improves signal integrity.
• Increases the reliability of electronic devices.
• Meets international EMC standards.
• Easy to integrate into existing circuit designs.

Additional Details

Common mode chokes work by presenting a high impedance to common mode currents while allowing differential mode currents to pass through with minimal attenuation. This effectively blocks common mode noise from entering or leaving the circuit. This specific series is designed for a variety of applications based on size and performance requirements.

Key specifications include:

• Inductance: Consult datasheet for specific value (likely in the uH range).
• Rated current: Consult datasheet for specific value (likely in the mA or A range).
• DC resistance: Consult datasheet for specific value (should be low).
• Operating temperature range: Typically -40°C to +125°C.