BA782-HE3-08

RF Diode Overview

The BA782-HE3-08 is a silicon epitaxial planar band switching diode manufactured by Vishay General Semiconductor - Diodes Division. It is designed for electric bandswitching in radio and TV tuners within the frequency range of 50 to 1000 MHz. The device features a small reverse capacitance that remains largely independent of reverse voltage, alongside a constant dynamic forward resistance over a wide current range. It is housed in an SOD-123 surface-mount package with a maximum junction temperature of 125 °C and an operating temperature range from -55 °C to +125 °C.

RF Diode Feature Summary

• AEC-Q101 qualified for automotive reliability standards
• RoHS-compliant and halogen-free construction
• Low dynamic forward resistance across high-frequency bands
• Small reverse capacitance largely independent of reverse voltage

RF Diode Applications

• Electric bandswitching in radio tuners
• Bandswitching in television tuners
• High-frequency signal routing circuits

RF Diode Procurement Notes

Verify the specific ordering suffix against official documentation to confirm compliance requirements. The HE3 suffix indicates RoHS compliance and AEC-Q101 qualification, while E3 denotes commercial grade RoHS compliance. Confirm packaging options such as tape and reel quantities before procurement to ensure alignment with manufacturing line specifications.

RF Diode Selection Notes

Select this component when low parasitic capacitance and stable dynamic resistance are required for frequencies between 50 MHz and 1000 MHz. Ensure the application operates within the specified 35 V reverse voltage limit and 100 mA forward current constraints. Verify thermal management capabilities to maintain junction temperatures below the 125 °C maximum rating during continuous operation.

RF Diode Part Context

This part belongs to the BA78x series of band switching diodes, which includes variants like the BA783. The series is engineered specifically for RF applications requiring fast switching characteristics and minimal signal distortion. The HE3 variant represents the automotive-grade version of the standard BA782 diode, offering enhanced reliability for demanding environments.

RF Diode Replacement Considerations

BA782-E3-08 serves as the commercial-grade equivalent without AEC-Q101 qualification. BA783-HE3-08 is a similar automotive-grade alternative with slightly different capacitance and resistance values.