I just found a must read tutorial for magnetic door lock users. You might like to read and give your comments.

Just a quick suggestion, after reading Progeny's article: (1) Use 30+V MOV, (2) Use a couple of high power Schottky flybacks in parallel. (2) It might not easy to find low voltage MOVs, but 110V MOV might also work, because the Back EMF voltage in your case might be much higher than 100+V. Good luck and cheers.

@AhtishamAshraf Talk is cheap, if all my talkshop suggestions fail, in order not to damage EESE's reputation, I might consider getting a real cheapy magnetic lock, tear it down, measure the magnetic field etc (I do have a RF meter! :), and see why the little yellow duck's suggestions are so crappy!

@AhtishamAshraf You are welcome. Actually smart home and building automation has been one of my electronics hobbies in the last couple of years. My place is promoting smart city, so it is easy for me to find maker friends doing similar projects. You might like to skim old posts on solenoid door lock in rpi.org.forum:

Yeah if you have any group of Whatsapp or any other platform you can add me there @tlfong01

I have ordered 3 solenoid locks as well to test them

As I said earlier, I know quite a lot about relays, solenoids, and solenoid door lock, but very little about magnetic lock. So it is a good opportunity to add this part of knowledge to my knowledge/skills set, hoping that one day I might find a freelance job, in doing or teaching about home automation.

I am finding fun in doing pair programming/development with you, in this seemingly more and more challenging problem solving exercise. I also hoping to upgrade myself to hobbyist developer, from hobbyist programmer. But I am in no hurry at all, because electronics is still a hobby for me, and all my electronics projects so far are for charity work. Cheers.

@AhtishamAshraf Ha, glad to hear that "I have ordered 3 solenoid locks as well to test them". It is enjoyable doing pairing work with you, because we are learning new things from each other, and most important of all not seem to work under pressure or with a tight deadline. Often many of the OPs in this forum under pressure to complete an assignment for their school or work place. I was once in such an occasion and appreciate the pressure of meeting a tight deadline. Cheers.

I am a programmer myself but i don't have quite good knowledge about the Electronic Circuits and stuff @tlfong01

I have to deliver it for the company i am working in LOL as i am the manager so there is no time restriction one me @tlfong01

Sure and thanks for the help @tlfong01

@AhtishamAshraf Ah, I always use ...@gmail.com. The "..." is the last line of my profile.