BAV99-E3-18

Overview

The BAV99-E3-18 is a small signal switching diode manufactured by Vishay Semiconductors. It features two silicon junctions connected in series within an SOT-23 surface-mount package. The device supports a repetitive peak reverse voltage of 70 V and an average forward current of 250 mA. Electrical characteristics include a maximum forward voltage of 1.25 V at 150 mA, a reverse recovery time of 6 ns, and a typical capacitance of 1.5 pF. Thermal resistance from junction to ambient air is 460 K/W on an FR-4 board. The component operates within a temperature range of -55 °C to +150 °C.

Feature Summary

• Dual diodes integrated in a single series-connected configuration for compact circuit design
• Fast switching speed with low reverse recovery time suitable for high-frequency applications
• Surface mount SOT-23 package optimized for automated insertion processes

Applications

• General purpose switching circuits
• High-speed digital logic interfaces
• Signal clamping and protection stages

Procurement Notes

Verify the specific ordering code suffix against official Vishay documentation to confirm packaging quantity and reel specifications. Ensure compliance requirements match project needs, as commercial grade variants differ from automotive qualified options. Confirm RoHS status and material categorization details directly from the manufacturer's datasheet before finalizing procurement orders.

Selection Notes

Select this component when a dual series-connected switching diode is required in a minimal footprint. The SOT-23 package facilitates automated assembly. Consider the 70 V reverse voltage rating and 250 mA forward current limits during circuit design. Verify thermal dissipation capabilities relative to the intended operating environment and PCB layout constraints.

Part Context

This part belongs to the Vishay BAV99 family of small signal switching diodes. The E3 suffix indicates RoHS compliance and lead-free construction. The -18 suffix specifies tape-and-reel packaging containing 10,000 units per 13-inch reel. This variant represents the standard commercial grade offering without AEC-Q101 automotive qualification.

Replacement Considerations

BAV99-E3-08: Identical electrical specifications but packaged in 3,000-unit 7-inch reels.