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Product Detailed Parameters
- Description：AUTOMOTIVE GRADE FEED THROUGH FI
- Series：YFF-AC
- Mfr：TDK Corporation
- Package：Tape & Reel (TR),Cut Tape (CT)
- Voltage - Rated：25V
- Current：400 mA
- Operating Temperature：-55°C ~ 125°C
- Mounting Type：Surface Mount
- Package / Case：0805 (2012 Metric), 4 PC Pad
- Size / Dimension：0.079" L x 0.049" W (2.00mm x 1.25mm)
- Capacitance：10000 pF
- Tolerance：±20%
- DC Resistance (DCR) (Max)：-
- Insertion Loss：30dB @ 20MHz ~ 2GHz
- Temperature Coefficient：-
- Ratings：AEC-Q200
- Height (Max)：0.039" (1.00mm)
- Thread Size：-
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Overview
The TDK YFF21AC1E103MT0Y0N is a surface-mount EMI feedthrough capacitor in the YFF-AC series, designed for automotive applications under AEC-Q200 qualification. It features a capacitance of 10000 pF with a ±20% tolerance and a rated voltage of 25V DC. The component operates within a temperature range of -55°C to +125°C and has a maximum DC resistance of 300 mΩ. Packaged in an 0805 (2012 Metric) footprint with four PCB pads, it provides high-frequency noise suppression.
Feature Summary
- AEC-Q200 qualified for automotive reliability standards
- Feedthrough architecture for effective EMI suppression
- Surface-mount design compatible with automated assembly
Applications
- Automotive power supply circuits
- Battery charger input filtering
- Portable electronic device noise reduction
Procurement Notes
Verify the specific suffix MT0Y0N against official TDK documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing board layouts regarding the 0805 footprint and four-pad configuration. Cross-reference datasheet revisions to confirm material compliance and RoHS status prior to final procurement approval.
Selection Notes
Select this component when high capacitance density is required in a small 0805 package for automotive environments. The 25V rating suits low-voltage DC lines, while the 400mA current handling capability supports moderate load conditions. Consider the X7S dielectric characteristics for stable performance across the specified operating temperature range.
Part Context
This part belongs to the TDK YFF-AC series of ceramic feedthrough capacitors. These components utilize a unique internal structure to minimize parasitic inductance, offering superior high-frequency attenuation compared to standard multilayer ceramic capacitors. The series is specifically engineered to meet the stringent durability requirements of modern automotive electronics.
Replacement Considerations
Direct substitutes must match the 10nF capacitance, 25V rating, and 0805 footprint. Verify that alternative feedthrough capacitors maintain equivalent AEC-Q200 certification and similar insertion loss characteristics at target frequencies to ensure circuit integrity is preserved.
