BB555H7912XTSA1

Overview

The BB555H7912XTSA1 is a single-path varactor diode manufactured by Infineon Technologies, designed for surface-mount applications in the SCD-80 package. It features a maximum peak reverse voltage of 30 V and operates within a junction temperature range of -55°C to 150°C. The device exhibits a capacitance of 2.3 pF at 28 V and 1 MHz, with a capacitance ratio of 9.8 under C1/C28 conditions. Classified as discontinued, it belongs to the BB555 family and is supplied in tape and reel packaging.

Feature Summary

• Single-channel varactor configuration optimized for compact surface-mount designs
• High capacitance ratio enabling effective tuning performance in RF circuits
• Robust thermal stability supporting operation across extended industrial temperature ranges

Applications

• RF tuning circuits requiring variable capacitance control
• Voltage-controlled oscillator (VCO) frequency adjustment
• Impedance matching networks in radio frequency systems

Procurement Notes

This component is officially listed as discontinued by the manufacturer. Verification of availability should focus on surplus or secondary market sources rather than direct production channels. Confirm the specific suffix H7912 matches design requirements, as ordering variants may differ in packaging or lot codes without altering electrical function. Validate authenticity through authorized distributors due to end-of-life status.

Selection Notes

Engineers replacing this part must verify that substitute components match the 30 V peak reverse voltage and 2.3 pF capacitance specifications at 28 V. The SCD-80 package footprint requires careful mechanical review during redesign. Ensure the replacement offers comparable capacitance ratios and thermal characteristics to maintain circuit performance in existing RF layouts.

Part Context

The BB555H7912XTSA1 belongs to the BB555 series of varactor diodes from Infineon Technologies. This family is engineered for high-reliability RF applications, providing consistent tuning capabilities across varying voltage conditions. The specific H7912 suffix denotes particular manufacturing parameters within this established product line.

Replacement Considerations

BB555H7902XTSA1 is documented as an alternative packaging option for this product line.