Fast-Switching / Protection Circuit

Hi everyone,

I’m working on a small switching / protection circuit and I’m thinking of using the BAS40-06 diode. According to the datasheet it’s a small-signal Schottky barrier diode (in SOT-23 package), with up to 40 V reverse voltage and about 200 mA continuous forward current.

Here’s what I plan to test: use the diode as a clamping / protection diode or in a small-signal switching path for a microcontroller-powered project. I’ll run it under modest current (well below 200 mA) and check how low the voltage drop stays and whether switching stays clean without unwanted leakage or noise.

I’m a bit new to diodes, so I’d appreciate advice on a few things:

Have any of you used BAS40-06 before in similar roles (clamp, logic-level switching, protection)? When using Schottky diodes like this, do you add extra protective or smoothing components (resistors, capacitors) to avoid leakage or switching noise? For applications with digital signals or fast switching, have you noticed any quirks (e.g. leakage, signal distortion, heat)?

Thanks in advance for your insights