BAT43W-HE3-08

Single Diodes Overview

The BAT43W-HE3-08 is a small signal Schottky diode from Vishay General Semiconductor, housed in an SOD-123 case. It features a repetitive peak reverse voltage of 30 V and a forward continuous current rating of 200 mA. The device exhibits a typical forward voltage of 330 mV at 2 mA and a maximum leakage current of 0.5 μA at 25 V. Electrical characteristics include a diode capacitance of 7 pF at 1 V and a reverse recovery time of 5 ns. It operates within a temperature range of -55 °C to +125 °C.

Single Diodes Feature Summary

• Features very low turn-on voltage and fast switching capabilities for efficient signal processing.
• Protected by a PN junction guard ring against excessive voltage events such as electrostatic discharges.
• Compliant with AEC-Q101 qualification standards for automotive reliability requirements.

Single Diodes Applications

• General purpose rectification applications
• Automotive electronic circuits requiring AEC-Q101 compliance
• High-speed switching circuits

Single Diodes Procurement Notes

Verify the specific ordering suffix matches the required packaging configuration. The HE3 designation indicates RoHS compliance and AEC-Q101 qualification, distinct from the commercial grade E3 variant. Confirm the reel size corresponds to production needs, as the -08 suffix specifies 3K per 7-inch reel packaging. Ensure technical parameters align with the application's thermal and electrical constraints before finalizing procurement.

Single Diodes Selection Notes

Select this component when low forward voltage drop and rapid switching speeds are critical for circuit efficiency. The AEC-Q101 qualification makes it suitable for automotive environments where robustness against electrostatic discharge is required. Compare the 200 mA continuous current rating against load requirements to ensure adequate margin. Consider the SOD-123 package dimensions for PCB layout compatibility and thermal dissipation limits under ambient operating conditions.

Single Diodes Part Context

This part belongs to the BAT42W/BAT43W series of small signal Schottky diodes manufactured by Vishay Semiconductors. The series offers variants with different forward voltage characteristics, where the BAT43W typically provides a lower turn-on voltage compared to the BAT42W. Both share similar mechanical and thermal profiles but differ in specific electrical performance metrics defined in the datasheet.

Single Diodes Replacement Considerations

Direct substitutes include other BAT43W variants such as BAT43W-E3-08 or BAT43W-E3-18, which share identical electrical specifications but differ in qualification grade and packaging. Verify that any replacement maintains the SOD-123 footprint and meets the same AEC-Q101 requirements if automotive use is intended.

Single Diodes FAQ

What is the difference between the HE3 and E3 ordering suffixes?

The HE3 suffix denotes RoHS-compliant parts that are also qualified to AEC-Q101 standards for automotive applications, whereas the E3 suffix indicates RoHS-compliant commercial grade parts without the automotive qualification.

How does the BAT43W differ from the BAT42W?

The primary difference lies in the forward voltage characteristics; the BAT43W is designed with a lower turn-on voltage compared to the BAT42W, making it suitable for applications requiring minimal voltage drop at low currents.