BB55502VH7912XTSA1

Overview

The BB55502VH7912XTSA1 is a single silicon tuning diode from the BB555 series, manufactured by Infineon Technologies. It is housed in an SCD80 surface-mount package and designed for UHF-TV tuners. Key electrical specifications include a maximum reverse voltage of 30 V and a peak reverse voltage of 35 V. At a frequency of 1 MHz, the capacitance ranges from 1.9 pF to 2.3 pF at 28 V reverse bias, with a typical capacitance ratio of 8.9 (measured between 1 V and 28 V). The device features low series resistance of 0.58 Ω typ. at 470 MHz and low series inductance of 0.6 nH.

Feature Summary

• High capacitance ratio for effective tuning applications
• Low series inductance and resistance for high-frequency performance
• Excellent uniformity and matching due to in-line assembly procedure

Applications

• UHF-TV tuners

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package and marking configuration. Check current product status as availability may vary. Ensure compliance with RoHS standards and lead-free packaging requirements specified in the datasheet.

Selection Notes

Select this component based on its single-diode configuration and SCD80 package dimensions. Consider the capacitance range and ratio requirements for the target UHF tuner circuit. Verify that the operating temperature range of -55°C to 150°C meets environmental conditions. Compare series resistance and inductance values against other variants like BB535 or BB555-02V if different packages are needed.

Part Context

This part belongs to the BB555 series of silicon tuning diodes, which also includes the BB535 and BB555-02V variants. These components share similar electrical characteristics but differ in package types such as SOD323, SCD80, and SC79. The series is optimized for UHF-TV tuner applications requiring precise capacitance control and low parasitic elements.

Replacement Considerations

Direct substitutes within the same family include BB555G31XTSA1 and BB555G32XTSA1, which offer identical electrical performance in alternative packages. Cross-package replacements like BB535G31XTSA1 (SOD323) require footprint verification.