Non-mosfet box mod switch question
- Thread starter TripleDigitRide
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yea, i'd love to this this switch that can handle 60A+ of DC voltage. i've been on a hunt myself, but only seem to come across switches that are heavy duty industrial or automotive type switches; and they are not your "cool looking mod switch" even though i have found some small enough to fit into box mods.
they mostly look like these:
now, i see a ton of switches on ebay that the title states something like "60Amp Momentary Switch" and they are the anti vandal style of push button switch, but when you read into the rest of the page and the specs of the actual switch, the amp section will not say 60A, it will say 2-3A.
Or, the specs will not say anything at all regarding the AMPs.... they will tell you go to a site (like this APEM site APEM, industrial and professional switches, joysticks, switch panels, LED indicators) "for more info". But when you go to the site and search the whole companies list of switches, they actually have NO 60A anti vandal style switches. Or anything else like it for that matter. You will find a switch that looks like the one in the ebay listing, but it once again will be rated for something like 2-3A.
here's a few examples of these ebay listings for so called 60A switches:
1x Momentary Push Button Off on Switch 12V 60Amp 110V | eBay
Brand New Momentary Push Button Off on Switch 12V 60Amp 110V 12mm | eBay
Not that these switches even state "DC Amp" ratings.... their actual ratings can't even meet the 60A claim, let alone a DC claim of any kind.
Maybe i'm missing the big picture here and there's a ton of 60A DC anti vandal style switches flouting around that are easy to find. I know "some" exist. I just can't find any i really trust to have a "true" rating, or if i find one i trust.... it's not the cool box mod switch look\feel were all used to.
I know a bunch of people will use these switches or other's that have these low Amp ratings and be like "works grate", been vaping it all week at 0.2ohms with no mosfet and no issues. But that ain't gonna last, that switch will arc and whatever else until the thing dies, and when it does it could very well die in the closed position and make the user scramble to get the batteries out or throw the thing across the room and hope for the best.
they mostly look like these:
now, i see a ton of switches on ebay that the title states something like "60Amp Momentary Switch" and they are the anti vandal style of push button switch, but when you read into the rest of the page and the specs of the actual switch, the amp section will not say 60A, it will say 2-3A.
Or, the specs will not say anything at all regarding the AMPs.... they will tell you go to a site (like this APEM site APEM, industrial and professional switches, joysticks, switch panels, LED indicators) "for more info". But when you go to the site and search the whole companies list of switches, they actually have NO 60A anti vandal style switches. Or anything else like it for that matter. You will find a switch that looks like the one in the ebay listing, but it once again will be rated for something like 2-3A.
here's a few examples of these ebay listings for so called 60A switches:
1x Momentary Push Button Off on Switch 12V 60Amp 110V | eBay
Brand New Momentary Push Button Off on Switch 12V 60Amp 110V 12mm | eBay
Not that these switches even state "DC Amp" ratings.... their actual ratings can't even meet the 60A claim, let alone a DC claim of any kind.
Maybe i'm missing the big picture here and there's a ton of 60A DC anti vandal style switches flouting around that are easy to find. I know "some" exist. I just can't find any i really trust to have a "true" rating, or if i find one i trust.... it's not the cool box mod switch look\feel were all used to.
I know a bunch of people will use these switches or other's that have these low Amp ratings and be like "works grate", been vaping it all week at 0.2ohms with no mosfet and no issues. But that ain't gonna last, that switch will arc and whatever else until the thing dies, and when it does it could very well die in the closed position and make the user scramble to get the batteries out or throw the thing across the room and hope for the best.
yup, and to do it right is a couple bucks more. I would not be ok with one that way.
Yea, I'm super new to this.... So I try and read as much as I can and not assume any one person is right on everything, or that any one website or online group is more right than the other.
I have heard some say that mosfets are not safe as well due to the fact they usually fail in the open position and various other reason (something to due with the warm up process and it's optimal performance rang in conjunction with the temp). Like I said, I'm so new to this it's hard who to believe in areas. I see some say they would never not use a mosfet because it unsafe not to, and others say they would never use a mosfet, but instead use a switch that's been "real world" tested to take 60A+ worth of DC current.... Like bench mark tested (not sure if that's the correct term). I have scene data sheets of tests done on switches than a box mod maker has sent out for testing. Once they've done their resurch on switches, tested some themselves, then sent the top ones out for full professional testing and got back the results they want.... They build their mods with no mosfet, just the switch they know is solid for the use and they can prove it with the test results.
Before people were using mosfets on box mods, their were box mods out there that people were doing crazy subohm builds on and stood the test of time without burning out... So there's definitely switches/circuits that can handle it safely without a mosfet. How they found that switch, I don't know. Maybe got lucky, maybe got a tip from some other modder, or maybe even got a hold of a switch maker to do some custom made switches for them.
Like I said, I'm still hella new and no electrical engineer.... So I just kinda have to always keep reading and asking as many questions in as many places as I can. Of course I'm mostly speaking of non regulated mods (which is what the OP was talking about). I guess with DNA and other regulated mods, the fire switch isn't near as important regarding the amps it can handle..
:: sent from android with tapatalk ::
I have heard some say that mosfets are not safe as well due to the fact they usually fail in the open position and various other reason (something to due with the warm up process and it's optimal performance rang in conjunction with the temp). Like I said, I'm so new to this it's hard who to believe in areas. I see some say they would never not use a mosfet because it unsafe not to, and others say they would never use a mosfet, but instead use a switch that's been "real world" tested to take 60A+ worth of DC current.... Like bench mark tested (not sure if that's the correct term). I have scene data sheets of tests done on switches than a box mod maker has sent out for testing. Once they've done their resurch on switches, tested some themselves, then sent the top ones out for full professional testing and got back the results they want.... They build their mods with no mosfet, just the switch they know is solid for the use and they can prove it with the test results.
Before people were using mosfets on box mods, their were box mods out there that people were doing crazy subohm builds on and stood the test of time without burning out... So there's definitely switches/circuits that can handle it safely without a mosfet. How they found that switch, I don't know. Maybe got lucky, maybe got a tip from some other modder, or maybe even got a hold of a switch maker to do some custom made switches for them.
Like I said, I'm still hella new and no electrical engineer.... So I just kinda have to always keep reading and asking as many questions in as many places as I can. Of course I'm mostly speaking of non regulated mods (which is what the OP was talking about). I guess with DNA and other regulated mods, the fire switch isn't near as important regarding the amps it can handle..
:: sent from android with tapatalk ::
MOSFETs usually fail closed, not open.
This is quite interesting, do you have any examples of these companies sending out switches for testing? If you could send me a PM I am very interested to see who is testing the switches and how.
Yea, I’ve read and heard both ways. I did some googling on it because I hear both ways and ended up finding stuff that seems to amount it "it all depends on the application and exactly what happened". I know people that mod air soft guns and they have had them fail as an open circuit before. But I also read many people say they fail closed. But like I said, I don't claim to know anything of electronics.... just trying to take in all I hear and read. I’m definitely not disagreeing with you, just stating I seem to hear different stories. At first when getting into box mods I thought everything was gonna be cut and dry answers\reasoning, like mathematics. But that seems to be far from it due to the many different theories on things I find. Weather that’s from an extreme lack of knowledge by many people into the stuff, or very different theory’s from smart educated electrical engineers\hobbyists. Not really sure.
here's one example of a place where i read they fail open, or maybe closed (lol): temperature - Do MOSFETs usually burn open or closed? - Electrical Engineering Stack Exchange
I could be taking a lot of what I read on the net out of context due to me not knowing all the different types, styles, and applications of Mosfet’s.
nice.. yea, i got some N-Channel 3034's that I picked up for a few projects.
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