BAR64-05W-E3-08

RF Diode Overview

The BAR64-05W is a dual, common cathode RF PIN diode manufactured by Vishay Semiconductors. It is designed for RF signal switching and tuning applications up to 3 GHz. The device features low reverse capacitance and adjustable forward resistance based on bias current. Key electrical parameters include a maximum reverse voltage of 100 V, a continuous forward current of 100 mA, and a junction temperature rating of 150 °C. At 1 MHz with 0 V reverse bias, the typical diode capacitance is 0.5 pF. Differential forward resistance ranges from 23.8 Ω at 10 mA to 0.8 Ω at 100 mA (measured at 100 MHz).

RF Diode Feature Summary

• High voltage current controlled RF resistor functionality
• Low series inductance and small diode capacitance
• Long carrier lifetime for low signal distortion above 10 MHz

RF Diode Applications

• RF-signal tuning
• Signal attenuators and switches
• Mobile, wireless, and TV-systems

RF Diode Procurement Notes

Verify the specific ordering code suffix against the manufacturer's documentation to confirm packaging and qualification status. The standard BAR64-05W-E3-08 variant utilizes a 7-inch reel format. Confirm AEC-Q101 automotive qualification requirements if applicable, as this requires a distinct HE3A suffix.

RF Diode Selection Notes

Select the BAR64-05W for high-frequency applications requiring precise RF attenuation or switching. Ensure the operating frequency remains within the 3 GHz limit. Evaluate the required differential forward resistance against the available forward current range to determine appropriate biasing conditions for the target impedance.

RF Diode Part Context

This component belongs to the BAR64 family of RF PIN diodes characterized by low reverse capacitance. It serves as a functionally equivalent alternative to other Vishay SOT-323 packaged PIN diodes intended for mobile and wireless communication systems where compact form factors are required.

RF Diode Replacement Considerations

BAR64-05W-HE3A08

RF Diode FAQ

What is the typical diode capacitance at 1 MHz?

At 1 MHz with 0 V reverse bias, the typical diode capacitance is 0.5 pF.

How does the forward resistance vary with current?

The differential forward resistance decreases as the forward current increases; it is typically 23.8 Ω at 10 mA and 0.8 Ω at 100 mA.

Is the BAR64-05W qualified for automotive applications?

Yes, an AEC-Q101 qualified version is available under the ordering code BAR64-05W-HE3A08.