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Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510
http://electrooptical.net
http://hobbs-eo.com
I think they have some other parts in that series. Looks ferrite-epoxy filled, or maybe just a ferrite rod.
We have a new board, a Mach-Zender modulator driver, that uses conicals. They are giving us a lot of grief, and we need to spin the board anyhow, so maybe we'll use these, probably with a tiny additional inductor. The TDR rise time of these parts is a little slow, around 100 ps.
I should TDR a conical too.
My ole 11802 is being weird about reflection coefficients and impedances at the cursors, so I'm not sure what the impedance of that initial plateau is, but it's a lot more than 50 ohms.
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