Author Topic: Got a lesson in Flame Proof vs Flame Retardant resistors  (Read 1189 times)

0 Members and 1 Guest are viewing this topic.

Offline pilotplaterTopic starter

  • Newbie
  • Posts: 8
  • Country: ca
Got a lesson in Flame Proof vs Flame Retardant resistors
« on: January 06, 2020, 11:00:31 pm »
Hobbyist here

Seems obvious reading the listings and datasheets after the fact, but not digging into the details I didn't think much about the term flame retardant before placing some orders. Flame retardant meaning they won't sustain a flame once heat (power) is REMOVED.

Having dealt with self-extinguishing 3d print plastics normally this is well good enough, overkill even, but given a resistor is the heat source, it will sustain a flame while overloaded.

My very non-scientific tests to assess the short-circuit behavior of two resistors I got. A flame proof Yageo part, and a flame retardant coated stackpole part. Suffice it to say, don't want to let it get this far in-circuit. This is way beyond the rated spec obviously:
https://photos.app.goo.gl/aeMLaQYQAbZmiqmi9
« Last Edit: January 06, 2020, 11:02:19 pm by pilotplater »
 
The following users thanked this post: thm_w, hamster_nz, unitedatoms

Offline thm_w

  • Super Contributor
  • ***
  • Posts: 7521
  • Country: ca
  • Non-expert
Re: Got a lesson in Flame Proof vs Flame Retardant resistors
« Reply #1 on: January 07, 2020, 01:23:06 am »
Flame retardant meaning they won't sustain a flame once heat (power) is REMOVED.

hm you'd hope that would be the case with all modern resistors, although they may not wish to guarantee it.
Good demo.
Profile -> Modify profile -> Look and Layout ->  Don't show users' signatures
 


Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf