Fair-Rite Product's Catalog
Part Data Sheet, 5961000501
Printed: 2013-07-03
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
Part Number:
5961000501
Frequency Range: Low Permeability, 61 (ui=125) material
Description:
Application:
Where Used:
Part Type:
61 TOROID
Inductive Components
Closed Magnetic Circuit
Toroids
Mechanical Specifications
Weight:
12.000 (g)
Part Type Information
A ring configuration provides the ultimate utilization of the intrinsic ferrite material properties. Toroidal cores are
used in a wide variety of applications such as power input filters, ground-fault interrupters, common-mode filters and
in pulse and broadband transformers.
-Toroids are listed by initial permeability classes and increasing dimension of the inside diameter.
-All toroidal cores are supplied burnished to break sharp edges.
-Toroids are tested for AL values at 10 kHz.
-Toroids with an outside diameter of 9.5mm (.375'') or smaller can be supplied Parylene C coated. The Parylene coating will
increase the 'A' and 'C' dimensions and decrease the 'B' dimension a maximum of 0.038mm (.0015''). The ninth digit of a
Parylene coated toroid part number is a '1'. See the material characteristics of Parylene C in our online catalog.
-Toroids with an outside diameter of 9.5mm (.375'') or larger can be supplied with a uniform coating of thermo-set plastic
coating. This coating will increase the 'A' and 'C' dimensions and decrease the 'B' dimension a maximum of 0.5mm (.020'').
The 9th digit of the thermo-set plastic coated toroid part number is a '2'. Thermo-set plastic coating is RoHS compliant.
-Thermo-set plastic coated parts can withstand a minimum breakdown voltage of 1000 Vrms, uniformly applied across the 'C'
dimension of the toroid.
-The ''C'' dimension may be modified to suit specific applications.
-For any toroidal core requirement not listed in the catalog, please contact our customer service department for
availability and pricing.
-Explaination of Part Numbers: Digits 1&2 = product class, 3&4 = material grade, 9th digit 1 = Parylene coating,
2 = thermo-set plastic coating.
Fair-Rite Product's Catalog
Part Data Sheet, 5961000501
Printed: 2013-07-03
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
Mechanical Specifications
Dim
mm
mm
tol
A
B
C
D
E
F
G
H
J
K
21.00
13.20
11.90
-
-
-
-
-
-
-
±0.35
±0.30
±0.40
-
-
-
-
-
-
-
nominal inch
inch
0.825
0.520
0.468
-
-
-
-
-
-
-
misc.
-
-
-
-
-
-
-
-
-
-
Land Patterns
V
W
ref
-
-
-
-
-
-
-
-
-
-
X
Y
Z
Winding Information
Turns
Tested
-
-
Wire
Size
-
1st Wire
Length
-
2nd Wire
Length
Reel Information
Tape Width Pitch
mm
-
mm
-
Parts 7 ''
Reel
-
Parts 13 '' Parts 14 ''
Reel
-
Reel
-
Electrical Specifications
Typical Impedance ( )
Package Size
Pkg Size
-
(-)
Electrical Properties
A
L
(nH)
Ae(cm
2
)
l/A(cm )
l
e
(cm)
V
e
(cm )
3
-1
135 ±25%
0.46000
11.40
5.20
2.36000
Connector Plate
# Holes
-
# Rows
-
Legend
+ Test frequency
Preferred parts, the suggested choice for new designs,have shorter lead times and are more readily available.
The column H(Oe) gives for each bead the calculated dc bias field in oersted for 1 turn and 1 ampere direct current. The actual dc H field in
the application is this value of H times the actual NI (ampere-turn) product. For the effect of the dc bias on the impedance of the bead material,
see figures 18-23 in the application note How to choose Ferrite Components for EMI Suppression.
A ½ turn is defined as a single pass through a hole.
l/A - Core Constant
Ae : Effective Cross-Sectional Area
L
AL - Inductance Factor
(
__ 2
)
N
N/AWG - Number of Turns/Wire Size for Test Coil
l e : Effective Path Length
Ve : Effective Core Volume
Nl - Value of dc Ampere-turns
Fair-Rite Product's Catalog
Part Data Sheet, 5961000501
Printed: 2013-07-03
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
See next page for further material specifications.
Fair-Rite Product's Catalog
Part Data Sheet, 5961000501
Printed: 2013-07-03
Fair-Rite Products Corp. PO Box J,One Commercial Row, Wallkill, NY 12589-0288
Phone: (888) 324-7748 www.fair-rite.com
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