I would be cautious in using BAT41 for ESD clamping. I looked at a couple of BAT41 datasheets and didn't see any data for turn-on time.
Er, it's a schottky diode, turn-on is zero.
I would be worried about surge rating and ESR, though. Usually a bigger diode like BAT54S is used (which by the way is dual, saving on parts, and being SMT, saving on stray L too!).
3.3V zener/TVS is a lie -- if you get a true 3.3V zener part, it's very leaky under 3.3V, and doesn't clamp any better than a 5V zener/TVS does (peak clamp voltage in the 8-10V range for both cases). The only thing that can do 3.3V logic signals is a completely different component type, a snapback diode (which is actually a fast SCR structure).
I've used these before, seems fine:
https://www.digikey.com/product-detail/en/on-semiconductor/NUP4202W1T2G/NUP4202W1T2GOSCT-ND/2122071Note that they're made for 5V systems. 3.3V and below, you don't have much choice but to place a bypass cap at the TVS's supply pins, and bias that with VCC.
There are beefier versions for slower signals, and filtered versions, too.
Nice thing about the quad: you can place series resistors between pairs, so the ESD gets clamped twice. This doesn't address supply pin inductance, but it still helps reduce the peak further.
You may also be concerned about charged cable ESD, where the cable delivers a slug of current at its characteristic impedance. So, 1kV charge on 1m of 100 ohm cable is 10A for 5ns! (Comparable to a 5kV+ ESD strike. Of course, duration goes up with length, so this can be quite destructive with long cables.)
Cables can become charged from handling and ambient fields -- usually not much, and kind of rare -- but it can happen.
This, by the way, is a good reason why USB, HDMI, SATA and so on are all shielded standards, with the shell making contact first! While the cable overall might have whatever ESD on it (say someone picks up a cable, walks over the carpet, and plugs it into a machine -- its shell dumps the 10kV into ground, while all the inner conductors follow along not knowing this is happening because they are surrounded by that ground), the potential between conductors and shield is much less, and so the circuit only has to sink what's left, not a direct ESD strike.
Tim