What is this component?

[DJPGold]

I couldn’t find any information googling for this. I’ve got quite a few hundred boards with at least one on them and they appear to be gold plated on the top with a thin layer in between. If anyone can refer me to a recover video or yield I’d be very appreciative.

The “f700” with 501x on it. The 501x part varies between boards from the same devices

 

[butcher]

My guess is a fusible link, below the resistor pack and electrolytic capacitor, left of the diode.

The letter/number printed on the board can help somewhat in identifying components.

A volt/ ohmmeter is also useful in the identification of components.

 

[DJPGold]

My guess is a fusible link, below the resistor pack and electrolytic capacitor, left of the diode.

The letter/number printed on the board can help somewhat in identifying components.

A volt/ ohmmeter is also useful in the identification of components.

 

[DJPGold]

Awesome thank you, ever seen them on this forum before? Unfortunately I’m not too well versed on components. I’m pretty good at ripping out PCBs and hoarding the usual things like IC chips etc but these stump me sometimes.

 

[galenrog]

“F”, on circuit cards and schematics, designates both “fuse” and “fusible link”. Visually, yours is a fusible link.

Time for more coffee.

 

[DJPGold]

“F”, on circuit cards and schematics, designates both “fuse” and “fusible link”. Visually, yours is a fusible link.

Time for more coffee.

Thank you. I’ve been scouring google for results like “gold plated fusible link 501x f700” and similar variations to no avail.
If someone is able to find a damn thing about this on google I pinky swear I’ll post the yield from a few hundred grams of them

 

[galenrog]

I did electronic repair in the military from 1976 until retirement in the 1990s. It has the appearance of a fusible link.

If the specific component has been obsolete for much more than a decade, it may be very difficult to find any internet reference.

Also, F700 is the space designation on the board, a good repair manual on the equipment the board came from will show data on the component that belongs in that position on the board. Any internet search should refer to a 501X fuse or fusible link. Without a manufacturer name, however, the search may prove fruitless.

Time for more coffee.

 

[DJPGold]

I did electronic repair in the military from 1976 until retirement in the 1990s. It has the appearance of a fusible link.

If the specific component has been obsolete for much more than a decade, it may be very difficult to find any internet reference.

Also, F700 is the space designation on the board, a good repair manual on the equipment the board came from will show data on the component that belongs in that position on the board. Any internet search should refer to a 501X fuse or fusible link. Without a manufacturer name, however, the search may prove fruitless.

Time for more coffee.

Okay cool. All these hundreds of boards I have came from Polycom CX600 office phones. I’ll see if I can find a manual soon.
I assume they at least have some gold in them given the gold plating that’s visible but whether or not they’re worth collecting, I’ve got no idea.

 

[galenrog]

An operator’s manual will probably be useless. A repair manual may be of use. Some equipment manuals will help the repair technician identify subsystems to be replaced, rather than identify individual components.

The world of an electronics technician is not what it was 40+ years ago.

Good luck.

Time for more coffee.

 

[GoIdman]

I couldn’t find any information googling for this. I’ve got quite a few hundred boards with at least one on them and they appear to be gold plated on the top with a thin layer in between. If anyone can refer me to a recover video or yield I’d be very appreciative.

The “f700” with 501x on it. The 501x part varies between boards from the same devices

Hi DJPGold,

Those are fast "melting" fuses, it means their purpose is to protect the main component on the board from voltage and current surges . You can find those in PC`s mainly on graphic cards.

I have quite a few of those, but never attempted to recover gold from it since i believe you need to have a considerable amount to be worth the effort.

Be safe

Pete.

 

[justprofessor49]

That component designation is "F" for fuse. Other info is "L" for coil / inductor, "C" for capacitor, "R" for Resistor, "D" for Diode, "S" for switch, "J" for jack, "XTAL" or "X" for crystal, "Ju" for Jumper, "IC" for integrated circuit, "RA" for resistor array, ...

Hope that helps