Not sure just how to do non-destructive testing of any of the other PJ88's installed to see what it's characteristics are.
Hope there's still enough protection with this TVS now absent.
Hany_national, professional Technician : 1188 : : 38 : exzandria : 66 : : : : SMD Code book 16, 2013 3:46 pm : 66 : : : : SMD Code book 30, 2013 4:11.
It sits just past a power supply decoupling stage on the daughter board of the CAT 5 switch.Here you can download the SMD code book that shows SMD marking codes for almost every surface-mount device available on the market.Circuit consists of.4 ohm thermistor, a dual-inductor and a 100uF/100V electrolytic cap, with the TVS sitting across.I searched thru other SMD code books, have a 2007 copy of the Tutura SMD Code book, but didn't find it in there.You can use the ctrl F shortcut to search for a certain SMD code because it will be hard to look through 3400 codes, with type numbers, characteristics or equivalents and pinout information.Next look up the code in the alphanumeric listing which forms the main part of the pdf book by looking for the first character in the left column.If anyone comes across that code and it's true identity, or know what would bypically be a suitable part for that function, I'd be pleased to know.With the shorted TVS removed, everything powers.To identify a particular device, first identify the package style and note the ID code printed on the device.I assume it fired and failed shorted from some high transient that came thru and past the external smps 'wallwart'.Preview of the SMD Code Book download the SMD codebook.The part is most likely a Transient Voltage Supressor as suggested.
I don't know what would be an appropriate TVS part to install there, not knowing what WAS selected.