What miniature power supply with 220V to 5V is safer and can be used to power the microcontroller?

Looking for the most petite (manufactured/assembled) power supply 220V to 5V (not less than 300 mA) for microcontroller. While staying at option 1 and option 2 (HLK-PM01). The question is in reliability. Is it worth it to use these power supplies for continuous operation the microcontroller + sensors (plug and forget for six months or a year). What other ready-made options with minimum dimensions can be considered for such purposes?
July 8th 19 at 11:43
2 answers
July 8th 19 at 11:45
IMHO, it is better to abandon the switching-mode power supply in favour of the good old transformer. On account of the ready prompt , if the most - there are ready-made toroidal transformers, enclosures for electronics, and of the diode bridge does not find a problem.
What are not satisfied with impulsnykh? - logan66 commented on July 8th 19 at 11:48
: conder can leak, ripple. - colin.Jaskolski commented on July 8th 19 at 11:51
Conder can leak deptno, it's not the type of BP depends surge is not terrible covershenno, 10mV ripple music I do, and they interfere with only in umzch and then filtered without problems. - logan66 commented on July 8th 19 at 11:54
July 8th 19 at 11:47
s.aliexpress.com/ua677fIF
I to myself such ordered. About reliability I do not know, but they are very small.
Link is not working. - logan66 commented on July 8th 19 at 11:50
: corrected. Just sit through the Mobil ... - colin.Jaskolski commented on July 8th 19 at 11:53
: Yes, I stumbled on this, it is more expensive, because of this did not consider. Just think, for the test too, probably gonna order one. - logan66 commented on July 8th 19 at 11:56

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