Homemagnetic switch

Littelfuse’s Omnipolar TMR Switches Target Compact, Battery-Powered Electronics

https://www.electronics-lab.com/littelfuses-omnipolar-tmr-switches-target-compact-battery-powered-electronics/

The new LF21173TMR and LF21177TMR switches feature a low 160 nA power consumption and a wide 1.8 V to 5.5 V operating range in a compact LGA4 package.

Lowest power magnetic switch uses nanoamps

https://www.electronics-lab.com/lowest-power-magnetic-switch-uses-nanoamps/

Crocus Technology is introducing its CT832 Digital Magnetic Switch, in the CT83X series, a multi- function switching device with high sensitivity, reliability and new lows in power consumption, that it positions as the industry’s lowest power consuming switch. Lowest power magnetic switch uses nanoamps – [Link]