BAT43WS-HE3-18

Single Diodes Overview

The BAT43WS-HE3-18 is a surface-mount Schottky barrier rectifier manufactured by Vishay General Semiconductor - Diodes Division. It features a single diode configuration housed in an SOD-323 package with two pins. Key electrical parameters include a maximum repetitive peak reverse voltage (Vrrm) of 30 V and a maximum average forward rectified current (If) of 200 mA. The device exhibits a low forward voltage drop (Vf) of up to 1 V and a peak reverse recovery time (trr) of 5 ns. Operating temperatures range from -55°C to +125°C, with a peak non-repetitive forward surge current (Ifsm) of 4 A.

Single Diodes Feature Summary

• Schottky barrier technology enables fast switching speeds and low forward voltage drop for improved efficiency.
• Plastic material utilizes molded compound rated UL Flammability Rating 94V-0 for safety compliance.
• Internal die construction provides high surge overload capability to withstand transient current events.

Single Diodes Applications

• Power supply rectification in consumer electronics
• Free-wheeling diodes in DC-DC converter circuits
• Polarity protection in battery-powered devices

Single Diodes Procurement Notes

Verify the specific suffix HE3 against official Vishay documentation to confirm lead-free status and RoHS compliance. Ensure the ordering part number matches the exact package variant required for your PCB footprint. Cross-reference the manufacturer's latest datasheet revision to confirm active production status and any potential design changes before finalizing procurement orders.

Single Diodes Selection Notes

Select this component when circuit requirements demand low forward voltage at moderate currents to minimize power loss. The SOD-323 package offers space savings compared to larger through-hole alternatives. Verify that the 30 V reverse voltage rating exceeds the maximum expected reverse voltage in the application environment to ensure reliable operation under all conditions.

Single Diodes Part Context

This component belongs to the BAT43W series of small-signal Schottky diodes designed for general-purpose applications. The HE3 suffix indicates a specific manufacturing variant focused on environmental compliance. It serves as a discrete semiconductor solution within Vishay's broader portfolio of passive and active electronic components.

Single Diodes Replacement Considerations

BAT43WS-E3-18: Verified equivalent offering identical electrical characteristics and pinout compatibility.

Single Diodes FAQ

What is the maximum operating junction temperature?

The maximum operating junction temperature is specified as +125°C.

Does this diode support automotive qualification standards?

Official documentation confirms that the BAT43W series is qualified according to AEC-Q101 standards.