BAT42W-HE3-18

Single Diodes Overview

The BAT42W-HE3-18 is a small signal Schottky diode manufactured by Vishay Semiconductors in an SOD-123 surface-mount package. It features a repetitive peak reverse voltage of 30 V and a continuous forward current rating of 200 mA. The device exhibits a maximum forward voltage of 1000 mV at 200 mA and a leakage current of 0.5 μA at 25 V. Electrical characteristics include a reverse recovery time of 5 ns and a diode capacitance of 7 pF. Thermal resistance from junction to ambient air is 300 K/W, with an operating temperature range spanning -55 °C to +125 °C.

Single Diodes Feature Summary

• Features very low turn-on voltage and fast switching capabilities for general purpose applications.
• Incorporates a PN junction guard ring to provide protection against excessive voltage events such as electrostatic discharges.

Single Diodes Applications

• General purpose rectification
• Clamping applications
• Protection against electrostatic discharge

Single Diodes Procurement Notes

Verify the specific HE3 suffix indicates AEC-Q101 qualification and RoHS compliance when sourcing. Confirm the -18 packaging code corresponds to 10,000 units per 13-inch reel. Ensure design validation covers thermal limits and electrical parameters for the intended application environment.

Single Diodes Selection Notes

Select this component for designs requiring low forward voltage drop and rapid switching speeds within a compact SMD footprint. The HE3 variant provides automotive-grade reliability through AEC-Q101 qualification. Verify that the 30 V reverse voltage rating meets the circuit's peak inverse voltage requirements.

Single Diodes Part Context

This part belongs to the BAT42W/BAT43W series of small signal Schottky diodes. The BAT42W variant is distinguished by its higher forward voltage compared to the BAT43W. Both share identical mechanical dimensions and thermal characteristics while differing in specific electrical performance metrics.

Single Diodes Replacement Considerations

BAT42W-E3-18

Single Diodes FAQ

What is the difference between the BAT42W and BAT43W variants?

The primary difference lies in their forward voltage specifications; the BAT42W has a higher forward voltage (up to 1000 mV at 200 mA) compared to the BAT43W (typically 330 mV at 50 mA).

Does the BAT42W-HE3-18 meet automotive standards?

Yes, the HE3 suffix denotes that the device is AEC-Q101 qualified and RoHS compliant.