Is there a minimum switch current to ensure reliable switching for toggle and push button switches?
I am thinking of using a switch in a delay circuit with a comparator. The more current I design for, the bigger the capacitor I will need. Since the target delay is 0.5 to 1 sec. the capacitor size is not trivial on an SMD PCB with a 1 mA current. Put another way, any opinions on whether a 100 uA current is too low for a mechanical switch.
Some relay specifications give a minimum current, but I could not find such a specification for the toggle switches (CK, E-Switch, Tyco) I reviewed. My thinking is that switches have a different mechanical action that might lead to much lower minimum currents.
Thanks. John
I am thinking of using a switch in a delay circuit with a comparator. The more current I design for, the bigger the capacitor I will need. Since the target delay is 0.5 to 1 sec. the capacitor size is not trivial on an SMD PCB with a 1 mA current. Put another way, any opinions on whether a 100 uA current is too low for a mechanical switch.
Some relay specifications give a minimum current, but I could not find such a specification for the toggle switches (CK, E-Switch, Tyco) I reviewed. My thinking is that switches have a different mechanical action that might lead to much lower minimum currents.
Thanks. John