BAV21WS-E3-18

Overview

The BAV21WS-E3-18 is a general-purpose switching diode manufactured by Vishay General Semiconductor. It utilizes a standard silicon planar structure housed in an SOD-323 surface-mount package. The device is rated for a maximum repetitive peak reverse voltage of 250 V and an average forward rectified current of 250 mA. Key electrical characteristics include a maximum reverse leakage current of 100 nA at 200 V, a typical forward voltage of 1.25 V at 250 mA, and a maximum reverse recovery time of 50 ns. The component supports a non-repetitive peak forward surge current of 1 A and operates within a junction temperature range of -55 °C to +150 °C.

Feature Summary

• High-speed switching capability with fast reverse recovery time suitable for efficient circuit operation
• Glass-passivated junction construction providing enhanced reliability and stability under varying conditions
• Compact SOD-323 surface-mount package designed for automated assembly and space-constrained layouts

Applications

• General purpose signal switching circuits
• Power supply protection and isolation stages
• High-frequency rectification applications

Procurement Notes

Verify the specific suffix E3-18 against official Vishay documentation to confirm lead-free compliance and reel packaging specifications. Ensure the ordering part number matches the required SOD-323 variant. Cross-reference datasheet revisions to confirm pinout consistency and thermal ratings before finalizing procurement orders.

Selection Notes

Select this component when a compact switching diode with 250 V reverse voltage rating is required. The SOD-323 package offers a smaller footprint compared to larger axial or SOT packages. Consider the 50 ns reverse recovery time for high-speed digital or RF switching applications where low capacitance and fast transition times are critical design parameters.

Part Context

This component belongs to the BAV21 series of general-purpose switching diodes from Vishay. The series is characterized by its robust glass-passivated junction technology and availability in various surface-mount packages. The BAV21WS-E3-18 specifically denotes the SOD-323 form factor with standard commercial-grade performance metrics and RoHS-compliant manufacturing processes.

Replacement Considerations

Consult official Vishay substitution guides for verified equivalents. Generic replacements may differ in reverse recovery time or package dimensions. Verify that any substitute maintains the 250 V reverse voltage rating and compatible SMD footprint to ensure mechanical and electrical compatibility.