YFF21SC1H470MT009N

Overview

The TDK YFF21SC1H470MT009N is a three-terminal EMI feedthrough filter capacitor in an 0805 surface-mount package. It features a capacitance of 47 pF with ±20% tolerance and a rated voltage of 50 V. The component utilizes C0G dielectric material for stable performance across a temperature range of -55°C to +125°C. It exhibits a maximum DC resistance of 300 mOhms and supports a continuous current of 400 mA. Designed for high-frequency noise suppression, it offers insertion loss of 30 dB at frequencies between 2 GHz and 5 GHz.

Feature Summary

• Three-terminal architecture provides effective common-mode noise attenuation for signal lines.
• C0G dielectric ensures minimal capacitance variation over temperature and voltage changes.
• Compact 0805 footprint enables integration into space-constrained high-density PCB layouts.

Applications

• High-speed digital signal line filtering in automotive electronic control units.
• Noise suppression for USB and HDMI interfaces in consumer electronics.
• EMI mitigation in industrial data processing equipment.

Procurement Notes

Verify the specific suffix '009N' against official TDK documentation to confirm packaging and tape-and-reel specifications. Ensure compatibility with automated pick-and-place equipment regarding the 0805 package dimensions. Cross-reference the AEC-Q200 qualification status if automotive reliability is required, as this varies by series configuration.

Selection Notes

Select this component when low parasitic inductance is critical for high-frequency EMI suppression above 2 GHz. The 47 pF value balances noise attenuation with signal integrity preservation for high-speed data lines. Consider the 300 mOhm DCR limit for power dissipation constraints in dense circuit designs requiring 400 mA continuous current handling.

Part Context

This part belongs to the TDK YFF-SC series of surface-mount three-terminal feedthrough capacitors. Unlike standard two-terminal capacitors, the third terminal connects directly to ground, minimizing loop inductance. This design significantly enhances high-frequency performance compared to conventional MLCCs, making it suitable for stringent EMC requirements in modern electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify pinout compatibility and thermal characteristics before considering alternative manufacturers. Ensure any replacement maintains the 0805 footprint and 47 pF capacitance value for direct board-level interchangeability.