MOSFET resistor

[AceMelon]

I'm collecting the parts to make my first mod. But I didn't order a resistor.
I've seen this device bridging the mosfet and believe it's called a gate and is used for smoothing the signal.
Is it particularly necessary in this application?
It's the only bit of forgotten I think so I slightly begrudge postage on a pennies item.

 

[Huggett]

If you have a Maplins local to yourself, pop in and collect one

 

[sduncb]

Depends what sort of mod your building. You can do a completely unregulated mech mod and not bother with it

 

[Huggett]

CFR200J15K - TE CONNECTIVITY - Through Hole Carbon Film Resistor, CFR Series, 15 kohm, 2 W, ± 5%, 500 V, Axial Leaded | Farnell element14

Free delivery at Farnell , great supplier

 

[Huggett]

Nevermind

 

[AceMelon]

Thanks chap

 

[Tubbyengineer]

I'm collecting the parts to make my first mod. But I didn't order a resistor.
I've seen this device bridging the mosfet and believe it's called a gate and is used for smoothing the signal.
Is it particularly necessary in this application?
It's the only bit of forgotten I think so I slightly begrudge postage on a pennies item.

If you know what size you want I can have a ferret around in my components box and dig a couple out if I've got them, postage on those is going to be pretty much just a first class stamp...

 

[AceMelon]

I'm using the modmaker box kit as my base reference, and the one they list is a 15k carbon film jobbie.
This bit I can't find much info on so I'm just guessing that it's ok if that's what they put in the kit.

 

[erndub]

The resistor isn't for smoothing the signal. There is no signal - only voltage. The resistor activates (or deactivates, depending on type of mosfet) the switching of the mosfet. PLEASE read up and fully (or at least mostly understand) what is going on before you melt your own face off. There are tonnes of resources out there. Box Modders on Facebook has a superb reading up section and Reddit has loads of info too.

 

[Tubbyengineer]

I'm using the modmaker box kit as my base reference, and the one they list is a 15k carbon film jobbie.
This bit I can't find much info on so I'm just guessing that it's ok if that's what they put in the kit.

Well there's 2 options, You can wait for me to ferret a couple out - I've probably got some, or if you're going to order a soldering Iron from Maplin just pop a couple on your order, they're pennies as you say...

Probably best to add some heat shrink tubing too to insulate the mosfet legs (Small stuff for the legs and a big one to go completely over the mosfet unless you are going to mount it to the case...