BB689H7908XTSA1

Overview

The BB689H7908XTSA1 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 an operating junction temperature range from -55°C to 150°C. The device exhibits a capacitance of 2.9 pF at 28 V reverse bias measured at 1 MHz, with a capacitance ratio of 23.2 under C1/C28 conditions. This component serves as a variable capacitor suitable for RF tuning circuits requiring stable performance across wide thermal variations.

Feature Summary

• Single-channel varactor configuration optimized for compact surface-mount integration
• High thermal stability supporting operation up to 150°C junction temperature
• Capacitance ratio functionality enabling effective frequency tuning ranges

Applications

• RF circuit tuning and frequency adjustment
• Voltage-controlled oscillator (VCO) implementations
• Phase-locked loop (PLL) filter networks

Procurement Notes

Verify part authenticity through authorized Infineon distributors or certified suppliers. Confirm the specific suffix XTSA1 matches project requirements. Check current product status as availability may vary. Ensure storage and handling comply with moisture sensitivity level guidelines specified in the datasheet to prevent package damage during assembly.

Selection Notes

Select this component when a single-channel varactor with a 30 V reverse voltage rating is required. Consider the SCD-80 package dimensions for PCB layout constraints. Evaluate the 2.9 pF capacitance value at 28 V against circuit tuning needs. Verify that the 23.2 capacitance ratio meets the desired frequency modulation linearity and range specifications for the target application.

Part Context

This part belongs to the BB689 series of varactor diodes from Infineon Technologies. The series offers various configurations for RF applications. The BB689H7908XTSA1 specifically denotes the single-channel variant in the SCD-80 package. It shares core technology with other models in the family but differs in channel count and packaging options.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Engineers should consult official Infineon resources or authorized distributors for verified cross-reference data before implementing any alternative components.