Resistors/caps with high temperature tolerance

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SUMMARY

This discussion focuses on sourcing resistors and capacitors that can withstand high temperatures, specifically up to 125 degrees Celsius. Resistors can typically handle temperatures up to 155 degrees Celsius, while ceramic capacitors, particularly X7R types, are suitable for applications at 125 degrees Celsius. Users are advised to consult the temperature coefficient (tempco) graphs for ceramic capacitors to ensure compatibility with their circuits. Digikey is recommended as a resource for finding these components.

PREREQUISITES
  • Understanding of resistor and capacitor temperature ratings
  • Familiarity with ceramic capacitor types, especially X7R
  • Knowledge of temperature coefficient (tempco) graphs
  • Experience with electronic component sourcing, particularly using Digikey
NEXT STEPS
  • Research specific resistor types rated for temperatures above 155 degrees Celsius
  • Explore the characteristics and applications of X7R ceramic capacitors
  • Learn how to interpret temperature coefficient graphs for capacitors
  • Investigate alternative suppliers for high-temperature electronic components
USEFUL FOR

Electrical engineers, electronics hobbyists, and anyone involved in designing circuits that require high-temperature tolerance in components.

LM741
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Hi guys,

need to purchase some resisters and caps that can tolerate temperatures upto 125 deg. cel.

any ideas where i can find some - or what type i should be looking for??

thanks!
 
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Resistors are routinely rated up to 155C. What power levels are you talking about?

Caps are a different matter, depending on the value and type. Ceramic caps are rated up to 125C -- you just have to look at the tempco graph for each ceramic type in order to see if the variation will be tolerated by your circuit. If you can use X7R ceramic caps, they are pretty flat up to 125C.

Just look in your Digikey catalog for some examples.
 

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