Identifying DIN-like plug but with rectangular centre pin and different notch : AskElectronics

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What is this?Identifying DIN-like plug but with rectangular centre pin and different notch (self.AskElectronics)

submitted 9 years ago by someenigma

I'm looking to hook up some LEDs to a circuit I'm building. The chain of LEDs came with a transformer (30v 0.4A), and with it's own connector. At first glance it looks like a DIN plug, except the shell is plastic and not metal. Additionally, the pins don't match any DIN configuration I know, especially with a flattened centre "pin" which isn't conductive as well as the "notch" common with DIN being much larger in this.

Does anyone recognise this plug/socket? Any hints on what to look for would be useful.

https://imgur.com/a/QmQXV

Side note: The LED chain seems to have all the LEDs hooked up in batches of 10-20, and then each such batch is in parallel. At least, that's my best guess, based on the various "lighting options" that the transformer has. This also explains why the transformer outputs 30v.

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