BA479S-TR

RF Diode Overview

The BA479S-TR is a single silicon PIN diode manufactured by Vishay General Semiconductor - Diodes Division. It features a peak reverse voltage of 30V and a maximum forward current of 50 mA. The device exhibits a capacitance of 0.5 pF at 0V and 100MHz, with a resistance of 50 ohms at 1.5mA and 100MHz. It operates within a junction temperature range up to 125°C and is housed in the DO-204AH (DO-35) axial package.

RF Diode Feature Summary

• Utilizes silicon PIN technology for RF applications
• Provides low capacitance characteristics at zero bias
• Designed for high-frequency signal switching

RF Diode Applications

• RF signal switching circuits
• Attenuator networks
• Phase shifters

RF Diode Procurement Notes

Verify component authenticity as this part number is listed as obsolete and no longer manufactured by the supplier. Confirm availability through authorized distributors or secondary market channels, ensuring that received units match the specified DO-204AH package and electrical parameters before integration into designs.

RF Diode Selection Notes

Select this component when a single PIN diode with a 30V reverse voltage rating is required for RF applications. Ensure the design accommodates the 50 mA maximum current limit and the specific impedance characteristics defined at 100MHz. Consider the axial DO-35 package constraints for PCB layout and thermal management requirements.

RF Diode Part Context

This component belongs to the BA479 series of RF PIN diodes from Vishay. It is functionally similar to the BA479G variant but may differ in specific manufacturing tolerances or suffix designations. Both variants share the same core electrical specifications and package type, serving as standard solutions for discrete RF switching tasks.

RF Diode Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. As the BA479S-TR is obsolete, engineers should consult official replacement guides or contact the manufacturer directly for validated cross-reference data.