Ferrite Cross Reference

Construction articles in magazines and books often use part numbers of firms no longer in business or whose parts are hard to find. Many Palomar Engineers parts are identical or can be used as replacements. Use these tables to find substitutes.

FERRITE TOROIDS

Ferrite cross reference for Palomar Engineers, AVX, Neosid, EPCOS, Fair-Rite, Hitachi, Indiana General, Magnetics, Ferroxcube/Phillips. () = mix number

FERRITE MATERIALS

Note:    Mix 67 replaces old 63.    Mix 77 replaces old 73.
To order cores specify both size and material. Example: F50-61

Comparing data for Philips and Palomar ferrite core material:

AMIDON CROSS REFERENCE

Iron Powder Cores: Amidon and Palomar part numbers are the same.
Ferrite Ring Cores: Amidon “FT” cores are the same as Palomar “F” cores.
Ferrite Beads: Table below shows bead size. To complete part number add Mix number. Amidon puts Mix first.
Palomar puts Mix at end.              Example: Amidon FB-43-101 is Palomar FB1-43.

Snap On Split Beads: See examples in table below.

Ferrite Rods: Palomar Engineers R61-12-050 (12″ long, 1/2″ diameter, Material 61) is same as Amidon R61-050-1200

Binocular Cores: Palomar Engineers BLN-68-61 is equivalent to Amidon BN-61-6802

Palomar Coax Feed line Chokes