Tnisesm/6pcs Coil DPDT PCB Power Relay DC 9V 8 Pins Mini Power Relay PCB Relay HK19F-8P-9V

Works as expected. Triggers well on 3.3v Warning! No documentation or markings whatsoever. It is a DPDT, but you need to use a multimeter to figure out which pins go where.Here is what I found: the pins for the relay coil are located clearly separate at one end. As you move inwards away from these pins, the COMMON pins are next. Then the N/C (Normally Closed) pins and lastly (outermost) the N/O (Normally Open) pins.

I keep ordering packs of these tiny Hui-Kes for low-power projects (and the blue Songle relays for anything >1A). For both HKs and Songles, there's always one in each pack that's not performing as well as the others. It wasn't any different this time: five out of six relays measured ~25 mOhm (+/- 10%) on all contacts, while one measured ~60-80 mOhm even after multiple open/close cycles. Interestingly, it's always the normally-closed contact that shows high resistance.Overall, even with one relay per pack showing less than perfect performance, these are still great value. I've used them for years and never had a single one quit on me.

I only tried 4 of the 6 but they all worked so far. Time will tell how reliable they will be. Nice size and good price.

For now it's working fine

As advertised

Always work great. 2nd order

Works

Relays are duds. When the relay is energized I hear the click but there is no connection.

Pour ma Pinball machine (home made ). Mais je préfère le relais 5 volts, que j'ai aussi acheté .

Controlling high current device. Works well.