Electronic – Can anyone indentify this component

componentsidentification

I have no clue of the PCB where this component was.
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The reference H400 60 and a logo that is unreadable are located in the top of the package.
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I didn't found any datasheet or valuable information in google.
There's a metal holder and a small cylinder inside the part.
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The small cilinder appears to be made by two materials.

The inside material is condutive.

The outside material is isolant.

I can't measure any capacitance in the cylinder.

Thanks in advance.

Best Answer

This looks very much a like a power PTC used for example for demagnetizing cathode-ray tubes. The ceramic gets high-resistance when it heats up.

And indeed, googling for "H400 PTC" yields e.g. this link at a random seller offering a component looking alike, but I was unable to quickly find a data sheet.