BB689H7912XTSA1

Overview

The BB689H7912XTSA1 is a single-channel varactor diode manufactured by Infineon Technologies, designed for surface-mount applications in the SCD-80 package. It features a peak reverse voltage rating of 30 V and supports junction temperatures ranging from -55°C to 150°C. Key electrical specifications include a capacitance of 2.9 pF at 28 V and 1 MHz, with a capacitance ratio of 23.2 measured under C1/C28 conditions. The component is classified as obsolete status as of September 2021.

Feature Summary

• Single-channel varactor configuration optimized for RF tuning circuits
• Surface-mount construction in compact SCD-80 packaging
• High capacitance ratio for effective frequency modulation range

Applications

• RF antenna tuning systems
• Voltage-controlled oscillator (VCO) circuits
• Frequency modulation modules

Procurement Notes

This component has reached end-of-life status, with obsolescence notifications issued in September 2021. Verification of current availability requires checking authorized distributors for remaining stock or last-time buy options. Engineers should confirm lead times and authenticity through official Infineon channels before finalizing procurement plans.

Selection Notes

Designers requiring this specific varactor characteristic must verify compatibility with existing circuit parameters due to its discontinued status. Alternative components within the BB689 family or similar high-ratio varactors should be evaluated for pin-out and electrical equivalence to ensure seamless integration into legacy designs without significant modification.

Part Context

The BB689 series represents Infineon's lineup of high-performance varactor diodes used primarily in radio frequency applications. This specific variant utilizes the SCD-80 package, offering a balance between performance and footprint size. The series is known for consistent capacitance-voltage characteristics suitable for precision tuning requirements in communication equipment.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult Infineon's official replacement guides or contact technical support for validated cross-references given the component's obsolete status.