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Product Detailed Parameters
- Description：DIODE VAR CAP 30V 20MA SCD80
- Series：-
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR),Bulk
- Capacitance @ Vr, F：2.75pF @ 28V, 1MHz
- Capacitance Ratio：15.3
- Capacitance Ratio Condition：C1/C28
- Voltage - Peak Reverse (Max)：30 V
- Diode Type：Single
- Q @ Vr, F：-
- Operating Temperature：-55°C ~ 150°C (TJ)
- Grade：-
- Qualification：-
- Mounting Type：Surface Mount
- Package / Case：SC-80
- Supplier Device Package：SCD-80
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Overview
The BB659CH7903XTMA1 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 2.75 pF at 28 V and 1 MHz, with a capacitance ratio of 15.3 under C1/C28 conditions. Classified as obsolete, it belongs to the BB659 family and is supplied in tape and reel packaging.
Feature Summary
- Single-channel varactor configuration optimized for RF tuning circuits
- Surface-mount construction in compact SCD-80 package for automated assembly
- High capacitance ratio enabling wide tuning range in resonant applications
Applications
- RF filter tuning networks
- Voltage-controlled oscillator (VCO) circuits
- Frequency synthesizer phase-locked loops
Procurement Notes
This component is officially marked as obsolete by the manufacturer. Verification of current availability requires checking authorized distributors for remaining stock or end-of-life inventory. Engineers should confirm lead times and authenticity through verified supply chain channels before procurement planning.
Selection Notes
Designers requiring this specific capacitance ratio and voltage rating should verify pin compatibility with existing layouts. Since the part is obsolete, alternative components from the same family or newer generations must be evaluated for equivalent electrical performance and thermal characteristics to ensure circuit continuity.
Part Context
The BB659CH7903XTMA1 is part of Infineon's BB659C series of silicon varactor diodes. These devices are engineered for high-Q performance in microwave and radio frequency applications. The suffix indicates specific binning or testing criteria within the broader BB659 product line.
Replacement Considerations
No public substitute part numbers are documented. Obsolete status necessitates evaluating next-generation varactors with similar C/V characteristics and package dimensions.
