BBY5603WE6327HTSA1

Overview

The BBY5603WE6327HTSA1 is a silicon hyperabrupt junction tuning diode manufactured by Infineon Technologies. It is designed for voltage-controlled oscillator (VCO) applications in VHF and UHF frequency ranges. The component utilizes a surface-mount SOD-323 package, also identified as SC-76 or PG-SOD323-3D. It operates within a junction temperature range of -55°C to 150°C. This specific part number is classified as obsolete and is no longer in active production by the manufacturer.

Feature Summary

• Utilizes a silicon hyperabrupt junction structure optimized for variable capacitance applications
• Engineered specifically for high-frequency voltage-controlled oscillator circuits
• Designed for surface-mount assembly using compact SOD-323 packaging

Applications

• VHF voltage-controlled oscillators
• UHF voltage-controlled oscillators
• RF tuning circuits requiring variable capacitance

Procurement Notes

This component is officially marked as obsolete by Infineon Technologies. Active manufacturing has ceased, meaning new units are not produced through standard supply channels. Availability is restricted to existing stock held by distributors or secondary market sources. Buyers should anticipate limited quantities and potential supply chain instability. Verification of authenticity and storage conditions is critical when sourcing from non-authorized vendors due to the end-of-life status.

Selection Notes

Designers must account for the discontinued status of this part during initial selection. Alternative components with compatible electrical characteristics and pin configurations should be evaluated to ensure long-term project viability. The hyperabrupt junction profile offers specific capacitance-voltage relationships that may require substitution analysis. Supply chain risk mitigation strategies are essential given the lack of future production support from the original manufacturer.

Part Context

The BBY5603WE6327HTSA1 belongs to Infineon's portfolio of RF and microwave discrete semiconductors. It serves as a specialized varactor diode for frequency modulation and tuning applications. The device represents a legacy solution for VHF/UHF systems where hyperabrupt junctions provide wider tuning ranges compared to abrupt junction variants. Its obsolescence reflects typical product lifecycle transitions in semiconductor manufacturing.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult official replacement guides or contact authorized distributors for cross-reference recommendations.