BB689H7903XTMA1

Overview

The BB689H7903XTMA1 is a silicon tuning diode manufactured by Infineon Technologies, designed for surface-mount applications. It features a single varactor configuration housed in an SCD-80 package. The device supports a maximum reverse voltage of 30 V and operates within a temperature range of -55°C to +150°C. Key electrical specifications include a capacitance of 51 pF and a minimum tuning ratio of 18 under test conditions of 1 V to 28 V.

Feature Summary

• Utilizes silicon technology for stable tuning performance
• Designed for surface-mount installation via the SCD-80 package
• Supports wide operating temperature ranges suitable for demanding environments

Applications

• Radio frequency circuit tuning
• Voltage-controlled oscillator (VCO) designs
• Frequency modulation circuits

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance status and check current lifecycle status as availability may be limited. Ensure packaging details match specific project requirements before finalizing orders.

Selection Notes

Select this component when a single-channel varactor with a 30 V reverse voltage rating is required. The SCD-80 package is suitable for space-constrained surface-mount designs. Verify that the 51 pF capacitance and 18 tuning ratio meet the specific frequency range and linearity requirements of the target application.

Part Context

This part belongs to Infineon's BB689 series of silicon tuning diodes. These components are widely used in RF applications requiring variable capacitance. The H7903 suffix typically denotes specific binning or packaging variations within the standard BB689 product family.

Replacement Considerations

Consult official replacement guides for compatible varactors. Cross-reference pinouts and electrical parameters such as capacitance and reverse voltage to ensure functional equivalence in existing circuit designs.