STEMMA NON-LATCHING MINI RELAY max operating control voltage

Breakout boards, sensors, other Adafruit kits, etc.

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
dyones
 
Posts: 3
Joined: Wed Mar 10, 2021 3:21 pm

STEMMA NON-LATCHING MINI RELAY max operating control voltage

Post by dyones »

Hello all,

I want to use the STEMMA NON-LATCHING MINI RELAY to control power to a sensor. Now, the controller can provide 12V and 80ma. Is it possible to power and control the relay from 12V? I downloaded the schematics but there is no voltage ratings for the capacitors and resistors used. Transistor and diode look OK.

Thanks
D Yones

User avatar
adafruit_support_bill
 
Posts: 88037
Joined: Sat Feb 07, 2009 10:11 am

Re: STEMMA NON-LATCHING MINI RELAY max operating control voltage

Post by adafruit_support_bill »

The relay coil is rated for a nominal 3v and has a resistance of 64 ohms. Activating the relay with 12v will draw about 188mA and result in considerable heating.

User avatar
dyones
 
Posts: 3
Joined: Wed Mar 10, 2021 3:21 pm

Re: STEMMA NON-LATCHING MINI RELAY max operating control voltage

Post by dyones »

Thanks for the help. Does Adafruit have another relay module that can run from 12V?

User avatar
adafruit_support_bill
 
Posts: 88037
Joined: Sat Feb 07, 2009 10:11 am

Re: STEMMA NON-LATCHING MINI RELAY max operating control voltage

Post by adafruit_support_bill »

All the relays we carry are designed for use with control voltages in the 3v-5v range. I'd check with Mouser or DigiKey. They both carry extensive ranges of relays.

User avatar
dyones
 
Posts: 3
Joined: Wed Mar 10, 2021 3:21 pm

Re: STEMMA NON-LATCHING MINI RELAY max operating control voltage

Post by dyones »

No problem. Thanks for your help.

Locked
Please be positive and constructive with your questions and comments.

Return to “Other Products from Adafruit”