IRF3205 Replacement for 3D Printer: Need Advice

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Discussion Overview

The discussion revolves around finding a replacement for the IRF3205 MOSFET used in a 3D printer. Participants explore options for suitable replacements and share insights on the specifications and characteristics needed for compatibility.

Discussion Character

  • Technical explanation, Debate/contested, Experimental/applied

Main Points Raised

  • One participant notes that the additional numbers and letters on the MOSFET are likely lot or date codes.
  • Another participant identifies the IRF3205 as a now obsolete N Channel MOSFET and suggests looking for alternatives with similar characteristics based on power dissipation.
  • A participant shares a link to a datasheet for a similar part that may serve as a replacement.
  • One participant recommends using the manufacturer's selector guide to find a MOSFET with matching voltage and current ratings.
  • A question is raised about whether the replacement is for a single damaged FET or for a larger production design.

Areas of Agreement / Disagreement

Participants generally agree on the need to find a compatible replacement for the IRF3205, but there are differing opinions on the best approach and specific alternatives available.

Contextual Notes

There are limitations regarding the exact specifications required for a suitable replacement, as well as the potential for variations in performance among different MOSFETs.

Who May Find This Useful

This discussion may be useful for individuals seeking to replace MOSFETs in 3D printers or those interested in electronics repair and component selection.

c d
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I need to replace a mosfet for a 3D printer. The seller and manufacturer were contacted on this but were not able to fulfill a replacement.

See this on mosfet:
IRF3205
P705D
KCAB

Here is photo:

https://plus.google.com/photos/photo/103754471497291178620/6538401194800693618

Unable to find exactly this one described above. Could any IRF 3205 work?

Your thoughts?
 
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Yes. Those other numbers and letters are lot/date codes.

BoB
 
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Thanks for the recommendations. Just ordered a set of replacements. Thanks everyone!
 
The way to start is with manufacturer's selector guide. Look for one with same voltage and current ratings.
from http://www.irf.com/product-info/fact_sheet/farnell/10527.pdf

upload_2018-8-19_20-54-9.png

have you tried searching for that part number ?

https://www.digikey.com/product-detail/en/infineon-technologies/IRF3205PBF/IRF3205PBF-ND/812033

upload_2018-8-19_20-56-32.png
 

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Are you trying to replace one or a few damaged FETs or are you replacing this on a design that you will be making in large quantity?

BoB
 

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