Sidewinder ESC Q

[fastbaja5b]

Looking at the Sidewinder SCT for my SC10, my question is what are the BEC specs because for the life of me I can't find anything besides that it's 5V (Which is fine, my Savox SC1267SG Servo runs from 4.8 to 7.4V but the main thing is AMPS.

An EZ-Run ESC BEC only churns out 1.5A, resulting in glitching, things going haywire etc etc

A Hobbywing XERUN has a 2.5A BEC, and all is happy and fine. Ditto for the LRP SPX Esc with a 3A BEC

would help if I knew what the Amp rating was of the Sidewinder SCT BEC (Assuming 2s Lipo) so I can see whether or not I need to change servos or buy a BEC.

[fastbaja5b]

noone?

[Arct1k]

Castle's have always been 3amp - Doubt that it will be different.

[BrianG]

Yeah, I would say 3A as well.

One thing to note about the SW BEC is that it's a linear type. This means it creates more heat than its switching counterpart (especially at 3s and higher), but it is much more durable in my experience. Those linear regulators have overload and thermal protection, so they are really hard to kill; they just shut down until the problem is removed. Switching regulators are much more efficient at 3s and up (at 2s, linear and switching efficiency is about the same), but are quite a bit more complex.

So, if you are running 2s, I would stick to a linear BEC. If 3s and up, a switching BEC will stay a LOT cooler.

[simplechamp]

I wonder if the upgraded Sidewinder SCT has a switching BEC now though? Maybe not since it's still only 2-3S?

[Arct1k]

I would doubt it - had to keep the costs down and its only supposed to be 2/3...

[molak]

According to Patrick, it´s linear ..

[BrianG]

That would make sense. Switchers technically can work on 2s, but only exhibit benefits on 3s or more. So, why would they use a more complex/expensive switcher circuit when a simple and inexpensive LDO 3A linear regulator on a chip could be used instead with equal efficiency/results?

[simplechamp]

You guys are right, Castle answered my email "The Sidewinder SCT has a linear regulator, the same as the standard Sidewinder. Everything else about it is different."