I am modifying my intercom phone by adding an on/off switch for the intercom doorbell outside. The live wire of this doorbell is connected to a pin on a circuitboard and looks like this:
According to ChatGPT this is a female spade crimp connector. But this connector is connected to a pin, not a spade shaped connector. Does anyone know the name of this crimp connector? I'd also like to know if perhaps i could use a different kind of crimp connector to attach to the pin on the circuit board. Here's a photo of the opened intercom phone. The pin is indicated with a blue arrow.
EDIT: Here's a close-up of the round pins on the circuit board. I've also added a second photo of the crimp connector, showing the back side.
crimp from the other side:
I'll also add that this house is very old, including the circuit board. The house was built in 1982. Back then they still used brown as the color of circuit boards. It could be that this particular crimp connector is no longer made. If that's indeed the case, does anyone know a good alternative crimp connector that can fit on a round pin with a bullet shaped end?
EDIT 16/10
I've measured the diameter of the pins. I believe they are 1 mm in diameter (i measured pin 9, see photo). I've also added a clearer photo of the pins that was taken from the side. All pins are about 4 mm to 5 mm in length.
Best Answer
While I can't identify the exact connector used (which appears to be some unusual one designed to mate to both faston-style flat blades and round pins), I can suggest some connectors that will mate to the pins on this board. Since you say they're "1 mm in diameter" (looks like a bit more than that in the picture, though...), here's a connector that will work for pins in the range 0.813 to 1.168 mm (0.032 to 0.046 inch), to be crimped or soldered onto 18-22 AWG wire.
If you have smaller wires, this one is for the same range of pin sizes, for 22-26 AWG wire. It's also a bit cheaper.
Since it looks to me like the pins are a little larger than 1 mm in diameter, here's another connector that's designed for pins in the range 1.143 to 1.651 mm (0.045 to 0.065 inch), for 18 to 22 AWG wire. And again, here's the equivalent for 22-26 AWG.
I found all of these using Mill-Max's product finder, which is very handy when you need some pin receptacles like this.
Disclaimer: I have no affiliation with Mill-Max beyond as a customer; I've just used their parts a lot in the past and know how to navigate their website to find suitable parts. You should be able to find similar parts from Preci-Dip as well, and probably a handful of other manufacturers, if you prefer.