William At MyBlueRoom
New Member
Are there any brands of small signal coil based relays (reed or magnetic) that can be directly hooked up to a PIC I/O pin without a driving transistor?
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there are internal diodes that can act as clamping diodesdocel said:Some miniature PCB mount DIP relays are <30ma. But is it prudent enough to load the Pic port with an inductive load??
Correct clamping of the transients is essential to guarantee the Pic' s life-cycle!
akg said:there are internal diodes that can act as clamping diodesdocel said:Some miniature PCB mount DIP relays are <30ma. But is it prudent enough to load the Pic port with an inductive load??
Correct clamping of the transients is essential to guarantee the Pic' s life-cycle!
kjennejohn said:http://www.cotorelay.com/9000_Series.pdf
This will take you to a data sheet for a SIP (Single Inline Package) relay. This can be activated with less than 5V. Since the coil is 500 Ohms, this means your activation current is well within the PIC's capabilities.
These are available with an optional protective diode. DigiKey has them. Their P/N is 306-1066-ND, $4.00 each.
Hope this is what you wanted.
kenjj