Relay coil polarity?

[Flyback]

This Relay...

Relay (farnell 4444942)
https://www.electro-tech-online.com/custompdfs/2013/07/1717946.pdf

Is their a polarity on the coil connection (A1 & A2 pins)?

 

[KMoffett]

Generally DC relays only have a polarity if they have built-in anti-flyback diodes. I don't see any in the spec sheet. So, no.

Ken

 

[mvs sarma]

At times , they have a magnet placed inside(we call polarised relay and was used in telegraph and it is very sensitive)
In case diode is placed inside, it could be checked by diode function with a DMM.

 

[Flyback]

If i drive the coil of the 12V version of this relay from 24V, then is all i have to do is put a 1200R resistor in series with the relay's coil?

 

[blueroomelectronics]

They do make a 24VDC version.

 

[Flyback]

The 24VDC version is not in stock

 

[blueroomelectronics]

Farnell Canada has 16,039 of the 24V 3A in stock, same day. They also have 1,299 of the 5A version.

 

[Flyback]

ok thanks ,but can anyone in the world buy from farnell Canada?
I've heard of "Newark" in Canada and USA, and often wonder if i can buy from them?, as they appear better stocked

 

[mvs sarma]

Add relay resistance, and new resistor value. Then calculated current with 24V drive, should not exceed the permitted current of relay as per its datasheet.

perhaps you would be helping by indicating your location. You can well find that I am from Hyderabad, India, without asking , !!

 

[davenn]

ok thanks ,but can anyone in the world buy from farnell Canada?

You order it from your local Farnell and they will source and ship it from where-ever they need to

Dave

 

[blueroomelectronics]

ok thanks ,but can anyone in the world buy from farnell Canada?
I've heard of "Newark" in Canada and USA, and often wonder if i can buy from them?, as they appear better stocked

Sure why not. What country are you in?