BAS81-GS18

Single Diodes Overview

The BAS81-GS18 is a small signal Schottky diode manufactured by Vishay General Semiconductor - Diodes Division. It features a MiniMELF (SOD-80) surface-mount package with an integrated protection ring against static discharge. The device has a maximum reverse voltage of 40 V, a forward continuous current of 30 mA, and a peak forward surge current of 500 mA. Electrical characteristics include a typical forward voltage of 330 mV at 0.1 mA and a diode capacitance of 1.6 pF at 1 V and 1 MHz.

Single Diodes Feature Summary

• Integrated protection ring against static discharge
• Low capacitance for high-frequency applications
• Low leakage current
• Very low switching time

Single Diodes Applications

• HF-detector
• Protection circuit
• Diode for low currents with a low supply voltage
• Small battery charger
• DC/DC converter for notebooks

Single Diodes Procurement Notes

Verify the specific part number BAS81-GS18 to confirm the 40 V reverse voltage rating, as the BAS82 and BAS83 variants share identical packaging but differ in voltage specifications. Confirm compliance with RoHS standards and material categorization requirements before finalizing procurement documentation.

Single Diodes Selection Notes

Select this component when a low forward voltage drop and very low switching time are required for small signal applications. Ensure the design accommodates the 30 mA continuous forward current limit and the 40 V maximum reverse voltage constraint within the MiniMELF SOD-80 footprint.

Single Diodes Part Context

This component belongs to the BAS81, BAS82, and BAS83 series of small signal Schottky diodes from Vishay Semiconductors. All three variants utilize the same MiniMELF (SOD-80) case and mechanical data, differentiating primarily by their maximum reverse voltage ratings: 40 V for BAS81, 50 V for BAS82, and 60 V for BAS83.

Single Diodes Replacement Considerations

BAS82-GS18 or BAS83-GS18 may be used if higher reverse voltage tolerance is acceptable, provided the lower voltage rating does not impact circuit safety margins.

Single Diodes FAQ

What is the maximum reverse voltage for the BAS81-GS18?

The maximum reverse voltage (VR) for the BAS81-GS18 is 40 V.

What is the typical diode capacitance at 1 V and 1 MHz?

The typical diode capacitance (CD) is 1.6 pF under test conditions of VR = 1 V and f = 1 MHz.