the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

12V Relay Alternatives


Post ReplyPost New Topic
< Prev Topic Next Topic >
itolond 
Copper - Posts: 87
Copper spacespace
Joined: February 13, 2016
Location: Singapore
Posted: January 05, 2020 at 7:12 PM / IP Logged Link to Post Post Reply Quote itolond
Hi Forum,
I am looking to operate car cabin lights (very low power draw) this would be operated from a capacitive touch switch which has a 500ma load max which I am guessing is too small for my needs.
So I am looking for a very simple relay (or alternative ) which can fill this role . Standard relays are too large and over the top for my need (amperage size and wire gauges)
"i thought about the relays used in arduino units" - but not sure
geepherder 
Platinum - Posts: 3,668
Platinum spaceThis member consistently provides reliable informationspace
Joined: October 27, 2003
Posted: January 05, 2020 at 7:55 PM / IP Logged Link to Post Post Reply Quote geepherder
Use a transistor. Have you figured out your total current/power needs?
My ex once told me I have a perfect face for radio.
itolond 
Copper - Posts: 87
Copper spacespace
Joined: February 13, 2016
Location: Singapore
Posted: January 05, 2020 at 7:58 PM / IP Logged Link to Post Post Reply Quote itolond
these will vary but for the most part unde 1.5A tops
geepherder 
Platinum - Posts: 3,668
Platinum spaceThis member consistently provides reliable informationspace
Joined: October 27, 2003
Posted: January 06, 2020 at 6:08 AM / IP Logged Link to Post Post Reply Quote geepherder
You should be able to source a transistor rated at 5-10 amps for cheap enough. Then you just need a base resistor.
My ex once told me I have a perfect face for radio.
eguru 
Copper - Posts: 340
Copper spacespace
Joined: February 04, 2018
Location: Quebec, Canada
Posted: January 06, 2020 at 10:04 PM / IP Logged Link to Post Post Reply Quote eguru
An "Arduino" relay would be more than adequate and is reasonably small. Something like this:
https://abra-electronics.com/electromechanical/relays/pcb-mtg-1a-2a/rdp-140-mini-dip-relay-12vdc-3a-spdt-rdp-140.html
It is much simpler for a novice to use than a transistor for switching the high side from an open drain output from a sensor.

If you wish to post a reply to this topic, you must first login.
If you are not already registered, you must first register.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Friday, April 19, 2024 • Copyright © 1999-2024 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer