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Phone:          760-747-3343 FAX:              760-747-3346 Mail:            PO Box 462222 Escondido CA   92046                  e-mail         Info@ Palomar- Engineers.com

PPalomar® Engineers
Toroid 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 parts are identical. Use these tables to find substitutes.

FERRITE TOROID SIZE

Outside Diameter

Palomar Part Number

Indiana General Part Number

Indiana General Old Part No.

2.4”    61mm

F-240

F568-1

CF-123

1.14”    29mm

F-114

F626-12

CF-114

.82”    21mm

F-82

F624-19

CF-111

.50”   12.7mm

F-50A

F627-8

CF-108

.37”    9.5mm

F-37

F625-9

CF-102

.23”    6mm

F-23

F303-1

CF-101

FERRITE MATERIALS

u

Palomar

Indiana General

Stackpole

Ferroxcube

125

61

Q1

C/11

4C4

40

63

Q2

C/12

  

40

67

Q2

C/12

  

20

68

Q3

C/14

  

850

43

H

C/7D

3D3

5000

75

O6

  

3E2A

1800

77

TC9

C/24B

3B7/3B9

1800

73

  

C/24

3C8

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

AMIDON CROSS REFERENCE

Iron Powder Cores: Amidon and Palomar part numbers are the same.          Ferrite Cores: Amidon “FT” cores are the same as Palomar “F” cores.        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.

Amidon Beads

Palomar

FB-101

FB-1

FB-201

FB-2

FB-301

FB-3

FB-801

FB-8

FB-1801

FB-18

FB-2401

FB-24

Amidon Beads

Palomar

FB-6301

FB-63

FB-43-5621

FB-56-43

FB-43-1020

FB-102-43

2X-43-251

FSB-1/4

2X-43-151

FSB-1/2

BLN-43-2402

BLN-24-43

www.Palomar-Engineers.com          Updated 12-15-08