BB 659C E7902

Overview

The BB 659C E7902 is a single-channel varactor diode manufactured by Infineon Technologies, belonging to the BB659 series. Designed for surface-mount applications in the SCD-80 package, this silicon variable capacitance device operates within a junction temperature range of -55°C to 150°C. It features a peak reverse voltage rating of 30 V and exhibits a capacitance of 2.75 pF at 28 V reverse bias measured at 1 MHz. The component provides a capacitance ratio of 15.3 under C1/C28 conditions. This product is currently classified as obsolete with limited availability.

Feature Summary

• Single-channel varactor design optimized for TV and SAT tuner circuits
• Surface-mount construction in compact SCD-80 package
• Wide operating temperature range suitable for industrial environments

Applications

• TV tuner frequency selection
• SAT tuner local oscillator tuning
• RF circuit frequency modulation

Procurement Notes

This component is officially discontinued and no longer in active production. Verification of authenticity is critical when sourcing from secondary markets due to potential obsolescence risks. Buyers should confirm the specific suffix E7902 matches their schematic requirements, as packaging variations may exist among legacy stock. Cross-reference official datasheets for pinout compatibility before integration into new designs.

Selection Notes

Engineers replacing this obsolete part must evaluate equivalent varactor diodes with similar capacitance ratios and reverse voltage ratings. The SCD-80 footprint requires careful mechanical verification during substitution. Designers should prioritize components with comparable junction temperature ranges and ensure the replacement supports the required RF performance metrics for tuner applications without altering board layout constraints.

Part Context

The BB659 series represents Infineon's dedicated line of varactor diodes for broadcast receiver tuning applications. The BB 659C variant specifically targets single-channel requirements in television and satellite reception systems. This series utilizes silicon technology to provide stable variable capacitance characteristics essential for precise frequency control in analog and digital tuner front-ends.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult current Infineon varactor portfolios or third-party equivalents with matching electrical specifications and package dimensions.