Review on Pack of 6 Tnisesm Power Relay HK19F 8P 5V by Charles Butler

I keep ordering sets of these tiny Hui-Kes for low current projects (and blue songle relays for anything >1A). For both HK and Songles, there's always one in each pack that doesn't work as well as the others. Nothing changed this time: five of the six relays showed 25 mΩ (+/- 10%) on all contacts, and one measured 60-80 mΩ even after several open/close cycles. Interestingly, a contact that is always closed has a high resistance. All in all, even if one relay in the package performs less than ideal, they're still great value for money. I've been using them for years and none of them have worked for me.