Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [temperature]

Temperature is a property of a substance related to the amount of heat energy it contains.

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Why do electronics have a low temperature limit?

Apart from condensation why do electronic components usually have a low temperature limit? For example my laptop says something along the lines of -10 °C to 75 °C temperature while in use. I can understand the high temperature limit, as things will…
George
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How to make electronic systems which work below −40°C (−40°F)?

I notice on a lot of electronic products that most of them work down to −40°C. Glaring example with Microchip microprocessors page: https://www.microchip.com/ParamChartSearch/chart.aspx?branchID=1012 (check last columns). What I want I would like…
AmateurDAero
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Electronics in high temperature - operating 30 mins - 2 hours, up to 500 °F - possible?

Would electronics survive if the ambient temperature of the environment was between 120 °C (250 °F) and 260 °C (500 °F) and the operating time was between 30 minutes and 2 hours? After this time the electronics would cool back to room…
Dave
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What limits most integrated circuits to 150°C junction temperature?

As in the title. What limits most integrated circuits to 150°C junction temperature? I know it's not good practice to run chips very hot (as it shows you are wasting a lot of energy) but I'm curious as to what actually limits them to around 150°C.
Thomas O
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How hot can electronics get?

How hot can my mouse get before it stops working? Assume the plastic is removed so it doesn't melt. I'm really trying to gauge the max operating temperature for electronics that have no moving parts (ex. would the silicon circuit board melt at 1000…
wizlog
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Cheap way of temperature testing my boards

I want to make sure my product will work over a large temperature range of -40C to +75C. I can verify on the low end down to about -18C using a household freezer (which is probably good enough) but I'm not sure how to test it on the high end. Any…
Thomas O
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Why the difference between maximum junction temp (150°C) and storage temp (165°C)?

Many integrated circuits I have seen have the specification of maximum junction temperature (150°C) but storage temperature is invariably higher (165°C) and often lower, e.g. -55°C. Why the discrepancy? Surely the junction will be damaged whether or…
Thomas O
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ppm/K to ppm/°C formula

How can I transform the variation over temperature: 25 ppm/K to ppm/°C? I was searching for the formula and all I could find was that 100 ppm/K = 100 ppm/°C. Is this true?
electricalEN
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Storing electronics in low temperatures

Is there any disadvantages in storing electronics in cold storage (min. temperature about -30 °C/-22 °F)? I am speaking about non-assembled components and assembled (consumer) electronics. I am aware that condensation is a problem, but it can be…
jerry_c
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How does temperature affect voltage references, resistors etc.?

I have a 0.1% 3V reference with a temperature coefficient of 100ppm/°C. Does this mean it will be off by 8500ppm (0.085%) on top of my 0.1% when operating in an environment at 85°C? Does something similar apply to resistors?
Thomas O
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How to make a device that keeps water in sink and bath at desired temperature?

I have tight taps in my sinks and bathroom which are difficult to control — it's either too hot or too cold and never easy to manually set the preferrable temperature. I'd like to solve this old problem electronically. I figure I'd need (per sink) a…
user1306322
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How can I make a thermostat?

I would like to make a threshold-temperature on-off switch (a.k.a. a thermostat). Short of buying a commercial sensor like an LM335Z (I know that it's super cheap) and figuring out how to use the output, I thought that it could be a fairly simple…
ErikE
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Graph of Thermistor against Temperature

Assume that I had a circuit as such above. I was wondering, if I increased the temperature of the surroundings, what would a graph of the temperature/PD graph look like? I know that Resistance decreases with temperature, as more electrons 'escape'…
vik1245
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My product PC board malfunction on moderate temperature

We have been developing a product to work outdoors. During the winter months we have had no problems on our product and now in the summer the following problem came up: Our product charges in a vehicle and we discovered that when the vehicle is…
JJ Swart
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1-Wire sensor to high temperature about 200 C

I'm using 1-wire network temperatures in the furnishing and now I would like to measure the solar thermal collector in the upper end of the temperature of 1-wire sensor attached to the network. But the Dallas DS1820 series runs for 125 C. What to…
Paksi
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