RFCS04024000DBTT1

Overview

The RFCS04024000DBTT1 is a silicon-based radio frequency capacitor manufactured by Vishay Electro-Films. It features a capacitance of 0.4 pF with a tolerance of ±0.1 pF and a voltage rating of 50 V. The component utilizes a 0402 (1005 metric) surface mount package, measuring 1.02 mm in length, 0.51 mm in width, and 0.38 mm in height. It operates within a temperature range of -55°C to +125°C and exhibits a temperature coefficient of 100 PPM/°C. This device is designed for high-Q RF applications.

Feature Summary

• Utilizes silicon thin-film technology for stable RF performance
• High Q factor suitable for radio frequency circuits
• Compact 0402 surface mount footprint for space-constrained designs

Applications

• RF matching networks
• High-frequency signal processing circuits
• Wireless communication modules

Procurement Notes

This component is officially listed as End-of-Life (EOL) and is no longer in production. Verification of availability should focus on remaining stock from authorized distributors or approved substitute components. Procurement planning must account for the discontinuation status to ensure supply chain continuity for existing designs.

Selection Notes

Engineers selecting this part should consider its specific 0.4 pF value and tight ±0.1 pF tolerance for precision RF tuning. The 50 V rating and -55°C to +125°C operating range define its environmental limits. Due to the EOL status, alternative sourcing strategies or redesigns using compatible substitutes are necessary for new production runs.

Part Context

The RFCS series represents Vishay's line of silicon capacitors, offering alternatives to traditional ceramic and film technologies. These components are characterized by low parasitic inductance and stable electrical properties over temperature variations, making them suitable for demanding RF and microwave applications where standard capacitors may exhibit non-linear behavior.

Replacement Considerations

Publicly confirmed substitute part numbers include 06033K270GBTTR from KYOCERA AVX. Designers should verify that the substitute meets the required capacitance, tolerance, voltage rating, and package size constraints before integration.