2 series 2 parallel box mod mosfet question

[nickstevens3006]

I am in the process of building a 2 series 2 parallel box mod. With 4x18650 battery's. I have it all planned out and ready but i still don't know what kind of mosfet or resistor I need to use I am planning on running 30-35amp battery's and don't plan on building any lower than .4-.5 ohms. If anybody can help it would be great can I use a regular 3034 mosfet with 15k 1/4 watt resistor? or do I need to use two stacked mosfets and if that do I need two resistors or just one?


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[s20700134]

http://www.mouser.com/Search/m_ProductDetail.aspx?International-Rectifier/IRLB3034PBF/&qs=9%2bKlkBgLFf0jZeWnRhawEQ==
Irl3034 . They are available all over the interwebs and They are perfect for the job and are widely used. Put them in parallel on top of each other and it only needs one resistor.

 

[BornToDie423]

Either a 3034 or a 3036. The difference is the volt limit. 3034 is 40v 195a.. the 3036 is 60v 195a. They are the same price. You should be okay with two 3034 in parallel.

 

[DIY FancyLights]

You can save some (specially in shipping) by buying my eBay 3034's. We actually bought them in bulk from Mouser.

Qty 1: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=261799403031
Qty 5: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=251784662270

We also put up a Qty 5 plus 15K resistor (a common value for vapes to use for pulldowns) since we had so many vape buyers. You only need one resistor even if you put a pair of MOSFET's in parallel.

Qty 5: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=251888293101

We also have a slightly more expensive board + 'better; MOSFET + resistor that are easy to put in parallel by stacking them up and running the wires through both boards. They offer convenience as well as taking up less space.

Qty 1: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=261960134586
Qty 5: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=261960164740
Qty 5 + wire + heatshrink: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=252096055090

In ref to the earlier post, the 3036's to have slightly higher resistance then 3034's, but not enough to be a factor usually. The PSMN0R9-25 we used in the microFET boards has a lower RDSon resistance and a 25V rating.