AZDelivery 5 x 220V to 5V Mini Power Supply Module compatible with Raspberry Pi

Works perfectly. Build quality is good, as with all AZ Delivery products I bought. Used for automatic aquarium top up, powering monostable vibrator and relay.

I bought a single unit initially, which worked fine for about 18 hours, then it started making odd clicking noises, then the output started flickering on and off, then it died completely. I thought that maybe I'd got a duff sample, so, having checked my very minimal circuit over for shorts (none) and checked the power draw using a bench power supply and ammeter, I could see that my circuit was fine and that it was only drawing 100mA during normal running and only about 220mA at peak load, supposedly well within the 600mA capabilities of the device. I also checked for transients on my oscilloscope and there were none. I liked the form factor, and single ones were on three week delivery from Amazon, so I ordered a 3 Pack, which was available next day. The first AC-DC convertor I tried from the new batch lasted only about 6 hours, before failing in the same way as the first one. So, I'm giving up on these AC-DC convertors and will try to get my money back off Amazon :-( Anyway, even if there had been a problem with my circuit, the device supposedly has both over-current and short-circuit protection, but both units now give off a low and unstable voltage (1 - 1.8 volts) when connected to the mains whether connected to, or isolated from, my circuit :-( I've always had good experiences with A-Z Delivery stuff, but this product is a lemon!

I had a stair light that used a PIR sensor and a solid state relay in my stairwell. It used to be powered by a 9v PP3 battery that I would have to replace every 6 months. No More. Really good if you know what you want it for.

Despite some reviews saying these seem to fail, I bought three of these for a project I am working on. Because I was slightly skeptical about their lifetime, I decided to solder one onto its own board so I could test it with my project before considering using it on the main project board. I left it on for a few days and all seemed ok. However, after being switched off for a while, it immediately failed when switched back on again, supplying irratic voltages (0.3 - 1.5v) which is of no use. So definately not reliable. Annoying thing is that, after the initial test, I bought another three, thinking they seemed ok. So I intend to take the failed one apart to find out what is going on in the hope that I can replace the faulty component! However, I would not recommend these power supplies if you need a reliable 5v supply. I really should have not bought them based on the reviews on Amazon of them.

Nice to power your arduino from nearby mains with this doing the heavy lifting. BUT it can't be used on ESP32/ESP8266/ESP D1 boards because they die if you touch them with more than 3.3V (except via the USB socket). The pins are too short and very narrow, this means you can't use wires with female sockets on (too loose) and soldering is a nightmare because the block is made of a kind of soldering anti-matter that if you touch it with your solder tip it spreads to everything you touch preventing any solder adhering, even at temperatures not witnessed outside the seventh circle of Hell. Longer, thicker pins would be a massive improvement, and a 3.3V pin in addition would make it perfect.

I am in love with this AC/DC converters.

I bought these PSUs for the little project shown in the photo. Worked really well, much more suited to the project than something bigger. I did a burn-in at home before the project was installed on-site. The PSU failed. Have replaced the PSU with one from the same batch, I'll be doing an extended burn-in before taking it to site - some 70 miles away. The second PSU failed within 30 minutes. Looking at another poor review I checked a 39-ohm resistor within the PSU - open circuit. I had more issues, so I have scrapped ALL five the I bought!

This is a neat, small encapsulated PSU which mounts well on to vero board. It was being used to supply a maximum load of less than 100mA to run a logic IC and a small relay but failed after a couple of days use. Shame really but I note others had a similar experience. I should have bought a multipack I suppose.

A tought it was a good idea to use this in a small circuit containing an lm324, some LEDs and a small realay driven by a bd137. After the first click the relay did a sort of explosion occured in the ps and then no more power. I repaced by the second and the same thing happened. The third didnt last very long either. Now in stead i used an old nikia 3310 charger and that just keeps working. Makes it even harder for me to clean up my basement. That old stuff is just better.

Marche parfaitement, bonne résistance aux soudures répétées... Tension stable et résiste aux micro-coupures de courant. Le format est génial pour les projets DIY de contrôle à distance en 220v. Je l'ai utilisé avec un contrôleur ESP32.

Werkt goed en stabiel. Puntje om de 220 Aan te solderen is wat klein. Ik zou er volgende keer een groen schroef contactje opzetten. Ik heb geen idee hoe die dingen heten maar je kan van een header een schroef contactje maken.nu had ik een deadline…

Me han salvado el pellejo para un tema de undervoltaje. 'Remember' unir todas las GND si lo añaden a una rPI. No he notado que se calentasen apenas. Y sobre todo , que después de usarlas con un soldador de estaño , con lo berraquil/bestia que soy no las he dañado. Para placas PCB con vías/agujeros puede que haya que mover un pelín algún pin pero entran perfectamente.

Trasformatori che fanno quanto descritto. Di ottima qualità, e molto compatti. Mi tornava comoda una modifica/trasformazione di una ciabatta per avere disponibile, e integrate, 2 prese USB per alimentare vari utilizzatori (Cell, auricolari, Smart watch, cam, ecc. ecc.), e evitare di inserire ed estrarre alimentatori travel che mi occupavano prese della stessa. Ho estratto le schede dal contenitore per ridurre ulteriormente l'ingombro, ho praticato 2 asole per l'alloggio delle 2 prese USB e un LED per capire quando sono attive. Un minimo di manualità due saldature e il gioco è fatto. Risultato ottimo come si vede in foto.