BB804SF1E6327HTSA1

Overview

The BB804SF1E6327HTSA1 is a dual varactor diode manufactured by Infineon Technologies, housed in a PG-SOT23 surface-mount package. It features a pair of common-anode configurations designed for voltage-controlled oscillator applications. The device supports a maximum peak reverse voltage of 18 V and operates within a junction temperature range of -55°C to 125°C. Key electrical characteristics include a capacitance of 47.5 pF at 2 V and 1 MHz, with a Q value of 200 at 2 V and 100 MHz. The component has a capacitance ratio of 1.71 under C2/C8 conditions and is classified as an obsolete product.

Feature Summary

• Dual common-anode varactor configuration for integrated tuning circuits
• High quality factor (Q) ensuring low insertion loss in RF paths
• Compact PG-SOT23 surface-mount footprint for space-constrained designs

Applications

• Voltage-controlled oscillators (VCOs)
• Frequency synthesizers
• RF tuning circuits

Procurement Notes

This component is officially discontinued and no longer in active production by the manufacturer. Sourcing must rely on authorized distributors holding existing stock or third-party secondary market suppliers. Verify lot dates and authenticity carefully due to the end-of-life status. Availability is limited and subject to depletion without replacement from the original factory.

Selection Notes

Select this part only if legacy compatibility is required for existing designs utilizing the BB804 family. Evaluate alternative modern varactors with similar capacitance ratios and Q values for new developments. Ensure the 18 V reverse voltage rating meets the specific circuit bias requirements. Confirm that the PG-SOT23 package dimensions align with the target PCB layout constraints.

Part Context

This part belongs to the BB804 series of dual varactor diodes from Infineon Technologies. The suffix SF1 indicates the specific common-anode variant within this lineup. These components are widely recognized for use in consumer electronics and communication equipment requiring compact RF tuning solutions. The E6327HTSA1 designation specifies the tape-and-reel packaging format.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the discontinued status, direct pin-to-pin replacements may require verification against specific application parameters such as capacitance-voltage curves and Q factors.