RFCS04027000DBTWS

Overview

The RFCS04027000DBTWS is a silicon-based radio frequency capacitor manufactured by Vishay Electro-Films. It features a capacitance of 0.7 pF with a tolerance of ±5%. The component operates within a voltage range up to 50 V and maintains stability across a temperature range of -55°C to +125°C. Housed in a compact 0402 (1005 metric) surface-mount package, it utilizes thin-film technology for high Q performance. This part is specifically designed for RF applications requiring precise small-value capacitance.

Feature Summary

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

Applications

• RF matching networks
• Impedance matching circuits
• High-frequency filtering applications

Procurement Notes

This component is officially discontinued and no longer in production. Verification of availability should focus on finding authorized surplus stock or approved substitute parts from the manufacturer's documentation. Direct procurement from standard distribution channels is not possible due to end-of-life status. Ensure any replacement components meet the original electrical specifications and package dimensions.

Selection Notes

Designers must consider the discontinuation status when selecting this part. Alternative silicon capacitors with similar capacitance values and package sizes should be evaluated. Key selection criteria include maintaining the 0.7 pF value, ensuring compatibility with the 0402 footprint, and verifying that the replacement supports the required RF frequency range and temperature stability for the specific application environment.

Part Context

The RFCS series represents Vishay's line of silicon capacitors, offering advantages over traditional ceramic types such as lower parasitic inductance and better high-frequency performance. These components are widely used in telecommunications and RF systems where precision and stability are critical. The 0402 size provides a balance between performance and board space efficiency.

Replacement Considerations

KYOCERA AVX part number 04021J0R7PBSTR is listed as a similar alternative.