Mamba Max Not For 1/10th Scale?!?!

[monel_funkawitz]

I've never heard of a "Trancil" diode, but it is possible that it may just need translated.

Anyway, most high voltage spikes from collapsing motor fields (especially on sub 30 volt motors) can reach spikes of several hundered volts, but are extremely low current (In the micro-milliamp range). 99% of speed controls use FETS that over the years, the designers have come up with extremely effective ways to control output harmonics, spikes, saturation, etc. I still advocate the use of snubbers in any circuit where you control a magnetic coil. Any time you remove voltage that the mosfets don't have to deal with, you increase the reliability of the device.

Does TVS suppression do anything in our situation? Probably very little. Thousands of speed controls are in use every day without failure, but I use it on mine.