BB85702VH7902XTSA1

Overview

The BB85702VH7902XTSA1 is a silicon tuning diode from the BB857 series, designed for SAT tuner applications. It features a single diode configuration housed in an SCD80 package. Key electrical parameters include a maximum reverse voltage of 30 V and a peak reverse voltage of 35 V. At 1 MHz, the capacitance ranges from 0.45 pF to 0.65 pF at 28 V reverse bias, with a typical capacitance ratio (C1/C28) of 12.7. The device supports an operating temperature range of -55 °C to 150 °C.

Feature Summary

• High capacitance ratio suitable for wide tuning range requirements
• Low series resistance for improved signal integrity
• Excellent uniformity and matching due to "in-line" matching assembly procedure

Applications

• SAT tuners

Procurement Notes

Verify component authenticity through official Infineon channels or authorized distributors. Confirm RoHS compliance status and check for end-of-life notifications, as this specific part number may be subject to discontinuation. Ensure storage conditions adhere to specified temperature limits to maintain performance characteristics.

Selection Notes

Select this component when a high capacitance ratio and low series resistance are required for satellite tuner circuits. Verify that the SCD80 package dimensions align with the target PCB layout. Consider the operating temperature range and reverse voltage ratings to ensure compatibility with the system's electrical environment.

Part Context

This component belongs to the BB857 family of silicon tuning diodes manufactured by Infineon Technologies. It shares design principles with related parts like the BB837 but utilizes the SCD80 package for surface mount applications. The series is characterized by its use of an "in-line" matching assembly procedure to ensure consistent performance across production batches.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the BB857 series. Verify that any substitute maintains the required capacitance ratio and package type. Cross-reference specifications with authorized distributor databases to confirm availability and functional equivalence.