Hi All,
I haven’t a clue what I am looking at here and wondering if anyone can help.
This looks like a custom encapsulated part that only the OEM would know what it is. Sorry, I was not able to locate anything about the part.
Might be a small DC-DC converter. The non-isolated sort are often found in 3-pin form, but I can’t say I remember seeing any in that form factor recently.
A person could probably get some additional clues by looking at what it was doing in the circuit.
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Good call Rick.
Two pins go to antenna wires wrapped around the face of the unit. Two separate antenna wires.
The third pin I am not sure. Possibly power? I will have to find the connector diagrams for this unit. But the third pin goes through a fuse to an external connector, which is why I believe it is power.
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This is DC\AC Inverter MKS E12-051N from company Quantaflex Printed Electronics, Inc.
https://www.quantaflex.com/products_info.htm
DC/AC Inverters: Electronic devices converting DC to AC, are essential for powering lamps and other electronic devices.
Red wire + black wire -12V DC.
Blue wire + black wire – 60-120V or 40-200V AC (In your case, there may be a different AC voltage.)
The red wire is usually positive +12V.
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Ok, but does that make sense that two of the pins just terminate in what appears to be in-laid antenna wires? They don’t connect to a circuit that I can see.
I sent a request in to Quantaflex to see if they can provide info also. We’ll see what happens.
I don’t see any sense about this.
This is a DC-AC converter.
It converts DC voltage from a 12 volt battery to AC voltage.
Do you have an active or passive antenna?
If it is active, there should be an electronic unit that is powered by AC voltage.
Hi Adam7, that is not a pin there. This unit only has 3 pins.
I will upload pictures of the circuit it is in and what the inlaid antennas look like. Maybe I am totally off on them.
Hi, Byron T,
I meant this plus sign + or something else?
Here are some more pictures:
The back of the circuit board with the three pin locations
The face plate where the connections go to, with what I assumed was antennas
I am sorry to say that I seeing that we have board mounted DC to AC items that would have 3 pins.
Did Quantaflex respond with information? Are they able to supply one?
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Hi ByronT,
So, what type of device did your part come out of?
Everything you’ve shown us points toward your little block being a DC-AC inverter circuit which would be used to drive an EL (electro-luminescent) back-light. The two “antenna wires” you mention are typical of the two contacts present on an EL backlight membrane. The area between those two wires would glow when powered with the appropriate AC voltage (typically several hundred volts and a tiny current).
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Ok, that is something I was not aware of.
I did get some information from Quantaflex.
Attached is the pdf datasheet.
E12-051N.pdf (376.2 KB)
The rep said this in his reply email: This is a DC to AC Inverter. It is used to drive an Electroluminescent Lamp. It transforms DC voltage (12VDC nominal) to AC (100-120 VAC, 400-800 Hz.)
So, it looks like you helpful people really know your stuff! 
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Hello ByronT,
Thank you for the documentation.
It looks like the only inverters we have would be the more finished module style with AC outlets.
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