Automotive relay question
On 17.10.14 15:38, DaveC wrote:
I have a 12V SPST cube relay in my junque box. The diagram molded into the
relayıs housing includes a component connected in parallel with the coil
which looks suspiciously like a resistor.
Itıs not a back-emf diode: I connected the relay coil using both polarities
(using a current-limited power supply) and the same current draw is measured.
What is the purpose of this resistor?
Thanks,
Dave
Congratulations.
You found the perfect way of killing a protection diode.
After this the diode will bother you no more.
Dont touch my car please.
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