W3F15C4738AT1F

Overview

The W3F15C4738AT1F is a surface-mount feedthrough capacitor from the KYOCERA AVX W3F series, designed for high-frequency noise suppression. It features a 47 nF capacitance with X7R dielectric and a 50 VDC rating. The component operates within a temperature range of -55°C to +125°C and has a maximum DC resistance of 600 mOhms. Packaged in a 1206 (3216 metric) footprint with four terminals, it supports current ratings up to 300 mA.

Feature Summary

• Integrated three-terminal feedthrough architecture providing enhanced electromagnetic interference filtering compared to standard two-terminal designs.
• Utilizes X7R ceramic dielectric material to maintain stable capacitance performance across wide industrial temperature variations.
• Surface-mount construction enables automated assembly and compact integration into dense printed circuit board layouts.

Applications

• Smart meter internal circuitry protection
• Alternate energy system power management modules
• Automotive electronic control unit signal conditioning

Procurement Notes

Verify the specific suffix 'F' against official datasheets to confirm packaging configuration, as distributor listings may vary. Ensure compatibility with AEC-Q200 requirements if automotive qualification is mandatory. Cross-reference terminal dimensions and soldering profiles with your manufacturing equipment specifications before finalizing procurement orders.

Selection Notes

Select this component when superior common-mode noise attenuation is required over standard MLCCs. The three-terminal design offers lower effective inductance for high-frequency applications. Compare the 600 mOhm DCR limit against circuit loss budgets. Evaluate the 1206 package size against available PCB real estate constraints relative to smaller 0603 or larger 1210 alternatives.

Part Context

This part belongs to the W3F series of surface-mount feedthrough capacitors manufactured by KYOCERA AVX. The series is engineered for robust EMI suppression in space-constrained environments. It complements the two-terminal W2H and W2F lines by offering an additional ground terminal for improved filtering efficiency in sensitive analog and digital power domains.

Replacement Considerations

W3F15C4728AT1A is listed as a parameter-equivalent alternative within the same manufacturer portfolio. Verify that the 4700 pF capacitance value of the substitute meets the original circuit's filtering requirements before substitution.