Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12) x

Thread Closed
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Metal Film vs. Carbon film resistors
#1

Are there specific applications for the two types, or is it a matter of personal preference between these resistors?

I have been buying the metal film type. Now I am in need of some 75K and 750K which I have found at Mouser. So I am wondering which to get.

Thanks for any input.

Gene
#2

metal film is good and cheaper than carbon.
I like metal oxide as it is the cheapest and at 5% tolerance has the highest working temp up to 200 C (metal film - up to 155C). Metal film has better stability over temperature.
#3

I've noticed that often one is cheaper then the other depending on the resistance value, both are far cheaper then carbon comp resistors though.
Supposedly they also have voltage ratings, but I have never had a 1/2 Watter arc over in any radio that I repaired so I guess the 400 v rating is high enough.
Regards
Arran
#4

Thanks for the replies!

Gene
#5

Standard 1/2 metal film are rated for 350 volts, but you can also get them at 500 and 700 for about the same price.

Here is Mouser's selection of 1/2W, 700v metal film resistors.
http://www.mouser.com/Passive-Components...pyZ1z0x85h




Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Electrolytic restuffing/internals
I don’t have a vise so I had to hold it in my hand. Not optimal but covered up by the hvac tape in the end. I have a few...bridkarl — 11:52 PM
Electrolytic restuffing/internals
Bridkarl A question. For a hacksaw the cut looks a little...jagged. Why?morzh — 11:45 PM
The list of my radio & TV collection!
As usual, an interesting post from you, Peter. This seems to be similar to the RCA 3-BX-671 and the Zenith Transoceanic...MrFixr55 — 11:41 PM
The list of my radio & TV collection!
Hello Peter, Thank you for sharing your new video and looks like your weather is nice their too. it was like 25 Cel...radiorich — 11:05 PM
Electrolytic restuffing/internals
hello bridkarl, I will post some better photos ! Sincerely Richardradiorich — 10:14 PM
Electrolytic restuffing/internals
I just taped the two pieces of the cap together, but I can see your method is better. I just held the lead in with solde...bridkarl — 08:18 PM
Electrolytic restuffing/internals
hello bridkarl, Well done ! Here is a Photo of the base of Philco capacitor that I cut open you can see how I glued th...radiorich — 08:14 PM
philco predicta
Hi CGL18, Here is a link for the schematic from the Early television Foundation: WARNING!! One side of the Chassis i...MrFixr55 — 08:09 PM
The list of my radio & TV collection!
Peter; I like Canadian General Electric sets, whilst the model numbers are often the same as their U.S General Electr...Arran — 05:44 PM
Electrolytic restuffing/internals
Did as suggested. Cut can with hacksaw, removed internals, attached new 8mf cap - with ample use of cardboard and elec...bridkarl — 03:36 PM

[-]
Who's Online
There are currently no members online.

>