Some sort of supressor/spark gap?

[Chris56000]

Hi!

Does anyone recognise this?

It's a surface-mount component consisting of two metal electrodes soldered to the PCB power input lands, normally an open-circuit, with about three thin layers of brown insulating material between the electrodes, and has a logo consisting of an capital 'X' where the halves overlap slightly then "A03F" and "BSGZ" underneath on the second line?

Sorry for the poor quality of the photos!

Chris Williams

[pbarton]

PolySwitch Resettable Devices
Littelfuse 0.3A Surface Mount Resettable Fuse, 60V dc
https://in.rsdelivers.com/product/littelfuse/rf0323-000/littelfuse-03a-resettable-surface-mount-fuse-60v/1740463

[Chris56000]

Hi!

Member PBarton - thank you very much for your time - that's why myself and my friend couldn't seem to find it - we both thought it was some sort of spark-gap or suppressor across the lines rather than a fuse in series with them!

Kind regards,

Chris Williams

[Chris56000]

Hi

Just a quickie update to say my friend has successfully repaired the unit that the Littlefuse 60V polyswitch shown in my photo came from – the new replacement suggested by Member PBarton was an exact match, and the fault was traced to another 27–36V T.V.S. suppressor diode across the power input s/c, and the unit, some sort of industrial network router, now been shipped out serviced & tested!

Member PBarton, thank you once again for your help Sir!

Chris Williams