From: tnp@invalid.invalid   
      
   On 20/01/2025 07:41, mm0fmf wrote:   
   > On 20/01/2025 06:26, R.Wieser wrote:   
   >> Do*NOT*  use stuff above its voltage rating.   
   >   
   > Look at the damn pictures of the relays, you can see the ratings and the   
   > model number used.   
   >   
   > SR-05VDC-SL-C   
   >   
   >      5V DC SONGLE Power Relay SRD-05VDC-SL-C  (5 Pin mit NC / NO)   
   >      Contact form: 1a, 1b, 1c   
   >      Rated load: 10A 250VAC/28VDC,10A 125VAC/28VDC,10A 125VAC/28VDC   
   >      Contact resistance: <= 100 mOhm   
   >      Electrical life: 100,000   
   >      Mechanical life: 10,000,000   
   >      Coil rated voltage: 3-48VDC   
   >      Coil power: 0.36W, 0.45W   
   >      Coil pick-up voltage: <= 75%   
   >      Coil drop-out voltage: >=10%   
   >      Ambient temperature: -25 degrees Celsius to +70 degrees Celsius   
   >      Coil and contacts:1500VAC/min   
   >      Contact and contacts: 1000VAC/min   
   >      Insulation resistance: >=100M (ohm)   
   >   
   > https://www.play-zone.ch/de/5v-dc-power-relay-songle-srd-5vdc-sl-c.html   
   >   
   I'm using these (relays) to control my central heating from a Pi Zero.   
   They are OK   
      
   Driving a relay via a transistor is very simple and the code is minimal   
      
   --   
   No Apple devices were knowingly used in the preparation of this post.   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)