YFF21AC1E473MT0Y0N

Overview

The TDK YFF21AC1E473MT0Y0N is a surface-mount EMI feedthrough filter capacitor in the YFF-AC series. It features a capacitance of 47 nF with a 25 V DC rating and X7S dielectric characteristics. The component operates within a temperature range of -55°C to +125°C and holds AEC-Q200 automotive qualification. Its physical dimensions are 2.00 mm x 1.25 mm x 0.85 mm, corresponding to the 0805 (2012 Metric) package. The device provides an insertion loss of 30 dB between 5 MHz and 2 GHz.

Feature Summary

• Provides high attenuation for electromagnetic interference signals across specified frequency bands
• Designed for surface-mount assembly on printed circuit boards
• Qualified for automotive electronic applications under AEC-Q200 standards

Applications

• Automotive electronics systems requiring EMI suppression
• High-frequency signal line filtering
• Power supply input/output noise reduction

Procurement Notes

Verify the specific datasheet version for the YFF21AC1E473MT0Y0N to confirm exact electrical tolerances and thermal performance limits. Ensure compatibility with standard reflow soldering profiles used for 0805 components. Confirm that the 25V rating meets the maximum operating voltage of the target circuit under all transient conditions.

Selection Notes

Select this component when compact footprint and automotive reliability are required. The X7S dielectric offers stable capacitance over temperature variations compared to standard X7R types. Consider the 30 dB insertion loss specification against the specific noise frequencies present in the application environment to ensure adequate filtering performance.

Part Context

This part belongs to TDK's YFF-AC series of three-terminal feedthrough capacitors. These components utilize a unique internal structure to minimize parasitic inductance, enhancing high-frequency performance. The series is specifically engineered for demanding environments where space constraints and signal integrity are critical concerns.

Replacement Considerations

Check for direct substitutes within the YFF-AC series with matching capacitance and voltage ratings. Verify that any alternative component maintains the same 0805 footprint and AEC-Q200 certification if automotive use is intended.

FAQ

What is the dielectric material used in this capacitor?

The YFF21AC1E473MT0Y0N uses X7S dielectric material.

Does this component meet automotive standards?

Yes, it is qualified according to the AEC-Q200 standard.