T
treez
Guest
Hello,
We are using the following relay to switch incandescent car indicators (21W) on a 12V car…
JSM1a-12V-4 Relay datasheet
https://www.farnell.com/datasheets/1702843.pdf
This relay is rated for 10A contact current, and we only have about 2A contact current.
However, the relay will obviously last longer if it has less contact current. Therefore, would it not be a good idea to put in a 'contact-current-limiter' comprising a power resistor in series with the indicator bulb, which gets shorted out by a FET 30ms after the relay has closed?
Also, the datasheet doesn't say what is the contact bounce time, do you know? Does it depend on the current being contacted/broken?
We are using the following relay to switch incandescent car indicators (21W) on a 12V car…
JSM1a-12V-4 Relay datasheet
https://www.farnell.com/datasheets/1702843.pdf
This relay is rated for 10A contact current, and we only have about 2A contact current.
However, the relay will obviously last longer if it has less contact current. Therefore, would it not be a good idea to put in a 'contact-current-limiter' comprising a power resistor in series with the indicator bulb, which gets shorted out by a FET 30ms after the relay has closed?
Also, the datasheet doesn't say what is the contact bounce time, do you know? Does it depend on the current being contacted/broken?