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Re: Is there a known ch0 input protection mod? #problem #nanovna


 

This part is still stocked at Mouser, Digikey, RS, Farnell, etc. Many thousands available. Not recommended for new (high volume) designs, but upgrading your nanoVNA is a no-brainer to me.

Op 4-2-2022 om 17:51 schreef Jim Lux:

On 2/4/22 8:36 AM, N2MS wrote:
I missed the trigger voltage. The Infineon triggers at 6.1 volts and clamps at a lower voltage depending upon current. I'll look for an equivalent or order the Infineon.
The Bourns part is more for telco and data applications. Ethernet, for instance, has a transformer isolation which is pretty robust to transients of short duration. I don't know that I'd use a part with 25V holding voltage on Ethernet which might be PoE at 48V, though <grin>.

When you find a new part, let us all know.? Low C and low voltages are a tough combination to find.





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