BAV70W

Overview

The BAV70W is a small signal switching diode manufactured by Diodes Incorporated, housed in the SOT-323 surface-mount package. It features a dual common cathode configuration with two silicon junctions within a single component. Key electrical specifications include a maximum repetitive peak reverse voltage of 75 V and a forward current rating of 150 mA. The device exhibits a low reverse recovery time of 4 ns and a typical forward voltage drop of 1.25 V at rated current. Power dissipation is limited to 200 mW, ensuring efficient thermal management in compact designs.

Feature Summary

• Dual common cathode configuration integrates two independent switching diodes into a single compact footprint.
• Fast switching capability with a 4 ns reverse recovery time supports high-frequency signal processing applications.
• Low forward voltage drop minimizes power loss during conduction states.
• SOT-323 surface-mount packaging enables automated assembly and space-constrained board layouts.

Applications

• High-speed signal switching in consumer electronics
• Logic level translation circuits
• Protection against electrostatic discharge (ESD) in data lines

Procurement Notes

Verify the specific suffix associated with the ordered part number to confirm tape and reel packaging details and compliance certifications. Confirm that the manufacturer designation matches Diodes Incorporated, as other vendors produce similar part numbers with potentially different electrical tolerances or pin configurations. Cross-reference the datasheet revision date to ensure alignment with current manufacturing standards and material declarations.

Selection Notes

Select this component when a dual common cathode arrangement is required for signal routing or protection. The 75 V reverse voltage rating suits low-voltage digital systems. Ensure the design accommodates the 200 mW power dissipation limit under worst-case thermal conditions. Compare the 4 ns recovery time against system clock speeds to verify adequate switching performance without excessive ringing or distortion.

Part Context

This component belongs to the BAV series of small signal switching diodes, widely used in general-purpose electronic circuits. The BAV70W variant specifically offers a common cathode topology, distinguishing it from common anode counterparts like the BAV99. It serves as a standard replacement for discrete dual-diode setups, reducing board space and assembly complexity in modern portable devices and industrial control modules.

Replacement Considerations

• BAV70W-7-F
• BAV70WT-7-F

FAQ

What is the pin configuration for the BAV70W?

The BAV70W uses a three-pin SOT-323 package where Pin 1 is Anode 1, Pin 2 is Common Cathode, and Pin 3 is Anode 2.

Is the BAV70W suitable for high-frequency RF applications?

While optimized for fast switching with a 4 ns recovery time, it is primarily designed for digital signal switching rather than high-power RF transmission.