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Product Detailed Parameters
- Description：DIODE VAR CAP 30V 20MA SC79
- Series：-
- Mfr：Infineon Technologies
- Package：Tape & Reel (TR),Cut Tape (CT)
- 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-79, SOD-523
- Supplier Device Package：PG-SC79-2
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Overview
The BB659C-02V is a silicon variable capacitance diode designed for VHF TV and VTR tuner applications. It operates within a reverse voltage range of 30 V (peak 35 V) and supports a forward current up to 20 mA. The device exhibits a typical capacitance ratio of 15.3 at 1 MHz, with capacitance values ranging from 27 pF at 2 V to 2.4 pF at 28 V. It features a low series resistance of 0.6 Ω and minimal series inductance of 0.6 nH. The component is housed in the SC79 surface-mount package and complies with RoHS standards.
Feature Summary
- High capacitance ratio for extended frequency band tuning
- Low series inductance and resistance for high-frequency performance
- Excellent uniformity and matching due to in-line assembly procedure
Applications
- Tuning of extended frequency bands in VHF tuners
- Tuning circuits in VTR systems
Procurement Notes
Verify component authenticity through authorized Infineon channels or certified distributors. Confirm that the specific ordering suffix matches the required package type and marking configuration. Ensure compliance with environmental directives such as RoHS requirements before integration into final assemblies.
Selection Notes
Select this component when a high capacitance ratio is required for VHF applications. Consider the SC79 package dimensions and thermal characteristics during PCB layout. Evaluate the series resistance and inductance specifications against the target operating frequency to ensure optimal circuit performance.
Part Context
This part belongs to the BB639C/BB659C series of silicon variable capacitance diodes manufactured by Infineon Technologies. The series includes variants like the BB639C and BB659C, differentiated primarily by their packaging and specific electrical tolerances. These components are engineered for precision tuning in consumer electronics.
Replacement Considerations
Consult official replacement guides for updated versions. Verify pinout compatibility and electrical parameter alignment with existing designs before substitution.
