Can I use 12V on 5V relay?
1 Answer. Your relay is rated for 5 V and you know its DC resistance is 400 Ω. That means it draws (5 V)/(400 Ω) = 12.5 mA. Yes, a resistor would work to drive this relay from 12 V.
How many amps does a 12v relay use?
The coil of a relay passes a relatively large current, typically 30mA for a 12V relay, but it can be as much as 100mA for relays designed to operate from lower voltages.
How many volts can a relay handle?
Most are rated at 12v, usually a range of 12-15v. Actual voltage required to operate the relay is usually a little under 12v. That is why your accessories can still operate with the key on and engine off, usually making actual voltage a bit under 12v with lights on.
Will a 12 volt relay work with 6 volts?
Some 12 volt relays will energize easily with only 6 volts. They do have a pretty good size electromagnetic in there, ya know. You can also use a small dedicated 6 volt SLA battery that is for the horn, sounds, etc.
Can a 5V circuit trigger a 12V relay?
Will 5v trigger a 12v relay? Usually it’s a 5V circuit to switch a 12V relay. That’s easily done by ground switching (assuming their 0V aka grounds are common). [ FYI: That’s the common technique used for many modules and circuits – ie an input out output low or ground is the “active” state.
What kind of voltage do you need for Arduino relay?
You need 5v to power the relay coil. The input (IN) requires just a few milliamps at anywhere between 2. You can even use the same voltage you are. Both controlled by 12V and 5V input Voltage. Pls tell us you need 12v or 5v for 16 channel relay module.
Can a 5V switch be connected to a 12V switch?
The bulb is connected between output (internally) and a terminal that you connect to GND. Usually GND is the middle terminal with the +12V in and switch output at the ends. ] If it’s a 12V or other illuminated switch connected to a 5V supply, then yes, it will be switching 5V (with a dull bulb).
How much voltage does a Raspberry Pi relay need?
The standard output of Arduino is 5V, so this relay works well with it; however, the standard output of a Raspberry Pi is 3.3V, so you will need some additional circuit to operate this 5V relay.
Will 5v trigger a 12v relay? Usually it’s a 5V circuit to switch a 12V relay. That’s easily done by ground switching (assuming their 0V aka grounds are common). [ FYI: That’s the common technique used for many modules and circuits – ie an input out output low or ground is the “active” state.
What is the current of a 5 volt relay?
Suppose the current was 0.1 amps when the relay is fed at 5 volts- that is the current the resistor will use when it is dropping 7 volts. From Ohms law R=V/R. so R is 7/0.1 which is 70 ohms, That is a resistor not too common in value so use the nearest to it, 68 ohms perhaps.
Can a dropper resistor be added to a 5V relay?
If you know the impedance of the 5V coil, you can add a dropper resistor to compensate for the balance of the 12V (just as we do with LEDs). If you’re unsure, start with a higher resistance and work your way down until the relay operates reliably. You may need to include a diode so that your IC is not damaged by back EMF.
The bulb is connected between output (internally) and a terminal that you connect to GND. Usually GND is the middle terminal with the +12V in and switch output at the ends. ] If it’s a 12V or other illuminated switch connected to a 5V supply, then yes, it will be switching 5V (with a dull bulb).