Thick film resistor materials
On the page describing thick film resistors, it is stated that the resistive element is based on carbon. As far as I know, this is not true for any new components that you can buy. My information is that a metal oxide is used. I have seen Ruthenium oxide mentioned for this application.
In the days when I regularly bought leaded resistors for general use, I would always use metal oxide types. Only a cheapskate would use carbon film.
The black colour of the resistor body is nothing to do with a carbon element. The resistive element is protected with a film (glass?), that is coloured black to provide contrast with white text printed on it. I have seen dark green SMD resistors.
Grateful for the correction! Not sure where that incorrect data came from. Possibly the Tanqueray bottle...
Here is a page that shows RuO2 as well:
We updated the page:
Send corrections any time, and let my know if you want to receive a Microwaves101 gift for your troubles...
Sign in or register to add a comment.
Add a Comment
About Our Site
Biological Effects and Applications
Computer Aided Design
Emerging Applications and Technology
Filters and Passives
MMIC and RFIC
Packaging and Materials
Sources and Receivers
Test and Measurement
Max. Power dissipation per unit area of thin film materials
Wilkinson resistor test
N stage wilkinson
Modified Wilkinson HFSS
Terms of Service
Useful Hints and Tips
Created with PlushForums
© 2022 Microwaves 101 Discussion Board