Welcome! Log In Create A New Profile

Advanced

Different MOSFET for RAMPS

Posted by Chris Martin 
Forum List Message List New Topic
Chris Martin
Different MOSFET for RAMPS
May 01, 2011 06:07PM
Can someone with more electronics knowledge than me recommend a different MOSFET for the RAMPS board? It looks like the STP55NF06L is completely out of stock from Digikey.

[search.digikey.com]〈=en&WT.z_cat_cid=Dxn_US_US2011_Catlink&name=497-6742-5-ND

Anyone who can recommend a product that will perform the same will be greatly appreciated.
Reply Quote
jcabrer
Re: Different MOSFET for RAMPS
May 01, 2011 07:52PM
[ultimachine.com]
Reply Quote
Chris Martin
Re: Different MOSFET for RAMPS
May 01, 2011 10:00PM
Yea, I know where to get the exact one from a few places. I am looking for a comparable one that Digikey specifically keeps in stock.
Reply Quote
Sublime
Re: Different MOSFET for RAMPS
May 02, 2011 11:17PM
If you looked through the rest of the ramps forum you would see this MTP30N06 mosfet instead of STP55NF06 as the title to this thread [forums.reprap.org]

FFF Settings Calculator Gcode post processors Geometric Object Deposition Tool Blog
Tantillus.org Mini Printable Lathe How NOT to install a Pololu driver
Reply Quote
Chris Martin
Re: Different MOSFET for RAMPS
May 03, 2011 10:16PM
Saw that, not quite what I am looking for. As you obviously noticed, the posted mentioned that the MTP30N06 he asked about is obsolete at the time of posting. I am looking for a current model or at least the specs that are important.
Reply Quote
brupje
Re: Different MOSFET for RAMPS
May 04, 2011 03:07AM
any TO-220 N-type MOSFET rated for >=60v and >=50A should do.


Look like the STP55NF06 is in stock though, just not de L version.
[search.digikey.com]

Edited 1 time(s). Last edit at 05/04/2011 03:11AM by brupje.


reprapworld.com
PLA, ABS, PETG multiple colors (3 and 1.75 mm) €16,49 / kg
Megatronics 3.0 €79.99 / Minitronics €37,19
Reply Quote
Chris Martin
Re: Different MOSFET for RAMPS
May 04, 2011 07:14PM
Awesome. Thanks. I am not electronics savvy enough to know if that mattered.
Reply Quote
Sublime
Re: Different MOSFET for RAMPS
May 04, 2011 07:25PM
I'm not sure that is correct. I believe I have read a thread somewhere mentioning not all transistors are capable of running at the frequencies required for PID. A tip120 I believe is only good for bang/bang control. You may want to start a thread in the general electronics forum to confirm.

FFF Settings Calculator Gcode post processors Geometric Object Deposition Tool Blog
Tantillus.org Mini Printable Lathe How NOT to install a Pololu driver
Reply Quote
Triffid_Hunter
Re: Different MOSFET for RAMPS
May 08, 2011 11:04PM
IRL3803 is my favourite. seems perfectly happy being driven at 62.5KHz PWM direct from my avr's output, and can carry about 15A with no heatsink

-----------------------------------------------
Wooden Mendel
Teacup Firmware
Reply Quote
brupje
Re: Different MOSFET for RAMPS
May 09, 2011 05:01AM
I don't think it is a good idea to draw 15A over the ramps board though.


reprapworld.com
PLA, ABS, PETG multiple colors (3 and 1.75 mm) €16,49 / kg
Megatronics 3.0 €79.99 / Minitronics €37,19
Reply Quote
VDX
Re: Different MOSFET for RAMPS
May 09, 2011 05:35AM
... it's no real issue, when the tracks are wide enough - i have a high-power LED-driver that can output until 100 Watts (or more than 20 Ampere's: [www.linear.com] ) with 4 small SMD-MOSFETS without coolers winking smiley

Viktor
--------
Aufruf zum Projekt "Müll-freie Meere" - [reprap.org] -- Deutsche Facebook-Gruppe - [www.facebook.com]

Call for the project "garbage-free seas" - [reprap.org]
Reply Quote
Newer Topic Older Topic
Sorry, only registered users may post in this forum.

Click here to login