MrDEB
Well-Known Member
am building a project that controls a truck radio that allows the driver to have the radio on for a selected amount of time in 5 miniute increments (uses a 7555, that uses 8.2M/33uf tantalum cap for timing) .The rancher wants to run his radio while feeding his cattle.
problem is I ran acreoo a lighted switch that has a confusing data sheet.(see pic)https://www.electro-tech-online.com/custompdfs/2009/02/MS-101102.pdf
the sheet shows 3 terminals but the data sheet also shows the switch has 4 pins (the 4th pin for the led)
another quandry I am having to decide is a 5v relay or a 12v relay.
the circuit can run on 12v but an automotive electrical system varies from 12 - 14 v.
If I go with a regulator then we may have a heat problem?? but the circuit will draw very little current.
the contacts on the relay, to be safe, are rated at 5A
any thoughts
problem is I ran acreoo a lighted switch that has a confusing data sheet.(see pic)https://www.electro-tech-online.com/custompdfs/2009/02/MS-101102.pdf
the sheet shows 3 terminals but the data sheet also shows the switch has 4 pins (the 4th pin for the led)
another quandry I am having to decide is a 5v relay or a 12v relay.
the circuit can run on 12v but an automotive electrical system varies from 12 - 14 v.
If I go with a regulator then we may have a heat problem?? but the circuit will draw very little current.
the contacts on the relay, to be safe, are rated at 5A
any thoughts