FireWire 1814 broken inductor

[vr_fox]

I have a FireWire 1814 and the Inductor I7 broked i don't why, anyway. The ferrite core got broke.

The value is 470uH.
Height 15mm
Diammeter 15mm

But i need to know the impedance to buy a new one.
210 Ohms
377 Ohms
etc

Anyone knows this value.

Yes the value was 470uH i wrote it wrong


Thank you

[Darryl Ramm]

Originally Posted by vr_fox

I have a FireWire 1814 and the Inductor I7 broked i don't why, anyway. The ferrite core got broke.

The value is 740uH.
Height 15mm
Diammeter 15mm

But i need to know the impedance to buy a new one.
210 Ohms
377 Ohms
etc

Anyone knows this value.

Thank you

740 uH, you mean 470 uH?

What is this doing? A power supply filter choke? It's not impedance that is usually quoted (or you'd need to spec a frequency). It's DC resistance, so if you are worried about it measure the coil of the one you have with a multimeter.

What will matter is getting one that fits with the same mount type however this one is mounted. Look though DigiKey and Mouser for what you need.

[vr_fox]

This are the Inductors 470uH in mouser.

http://www.mouser.mx/Passive-Compone...yzvqm3Z1z0x280

I did measure the coil but its broken and measure 8 Ohms.

You can see the photos.

[vr_fox]

This is the Mouser list of inductor 470 uH 14 -16 mm (same size as original)

http://www.mouser.mx/Passive-Compone...yzvqm3Z1z0x280

You can see in the photos that the core is broken. I mesure the impedance and its 8 Ohms, but don't know if the value is wrong because is broken. It also measures 364 uH.