#askLorandt explains the basics of TVS diodes. He explains the function and the correct usage.

ESD Protection Components:
https://katalog.we-online.de/en/pbs/browse/emc_components/esd_protection

Interested in the German version of this tutorial? Click here: https://bit.ly/30uByxk

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8 Comments

  1. Do you have any components that can bypass a 12ms 50V transient? i'll even give you a profile — 24VDC – 18VDC(in 1ms) – 50VDC(in 30ms) and sustains for 12ms – 24VDC(in 70ms) ..?ref- MIL 704D

  2. Hello, can TVS diodes be used in an application where power supply wires with hundreds of nH of inductance lead to a device with mosfets that switches (PWM) the load on and off at 100 kHz?
    The supply voltages are actually low (below 30V) but in a simulation, whenever the mosfets are switched off current keeps flowing through the inductance of the wires resulting in very high voltage spikes at the mosfets.

    Can TVS diodes handle this? How fast does a TVS diode react to a voltage peak and how fast does it stop after the peak? Thanks.

  3. Great video! I searched on the channel to see if there were more TVS videos but couldn't find what I'm looking for. I'd like to see how to pick a TVS diode for specific purposes. Say, protecting microcontroller pins that are connected to a screw terminal, which only function is toggling 1/0 at slower speeds.

    Another question, not sure if TVS diodes could be beneficial, I have a Wiegand interface connected with rfid tag readers, I can't put anything in series with the D0/D1 datapins or put Zeners to limit overvoltage – because if I do, the signal gets destroyed. The only way to get the "data" to the microcontroller is to directly connect the pins from the rfid reader to the pins of the microcontroller and this feels dumb. Any ESD or tampering by for example disconnecting the leads and instead connecting a 9V battery to the screwterminal would kill the microcontroller.

    Could TVS diodes help here or what else could I do to protect the microcontroller pins, while maintaining the signal integrity?

    Any chance on videos on these topics? 🙂

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