F
erri
S
hield
F
erriteS
BISECTED & SOLID BEAD STYLES
FOR ROUND AND FLAT CABLES & WIRES
• World’s Largest In-Stock Selection
• Frequency-Specific Formulations
• Flexible Mounting Options
The Leading Edge in EMI Shielding Technology
1
Welcome to FerriShield
For more than 25 years, FerriShield ferrites have been the preferred cable
shielding solution for many of the world’s leading EMI Shielding Distributors,
Sales Representatives and OEM’s. Since acquiring the company in 2006,
Leader Tech has embraced the FerriShield philosophy of maintaining the
world’s largest in-stock selection of bisected and solid core ferrites.
The addition of cable mounted ferrites to Leader Tech’s existing EMI shielding
product line has significantly increased value for our customers. Backed
by unparalleled service and engineering support, Leader Tech now offers
the market’s most reliable selection of board, enclosure and cable shielding
solutions.
Shielded enclosures, even the most robust designs, will permit
electromagnetic energy to enter or exit along the main cabling. FerriShield
Ferrites are one of the most versatile and cost-effective cable shielding
methods available today. Our ferrites attack unwanted RF right on the circuit
wiring, eliminating the need for more costly forms of RFI control. Available
in solid and bisected designs, each style can make the task of regulatory
compliance quicker and less troublesome.
Our bisected styles use FerriShield’s innovative, quick-snap clamshell
enclosures. This unique design concept offers engineers the ultimate in
adaptability and easy installation. The RF absorbing core material interacts
directly with unwanted high-frequency energy and dissipates it effectively
while allowing data signals to pass unimpeded.
2
table of contents
ferrites for flat and round cables
RFID shielding
28
29
RFID overview
13.56, 433.32, 860-930 MHz; 2.45 & 5.8 GHz
Universal Wideband Material (28 Material)
10
12
13
14
14
15
15
16
16
19
19
21
cable snaps
for round cables
frequency-specific ferrites
13.56, 433.32, 860-930 MHz; 2.45 & 5.8 GHz
sleeve snaps
for round cables
USB cable sleeve snap
cable bundle clamps
for wire and cable groups
for flat-oval cables
for round cables
electrical and mechanical specifications
7
9
32
33
33
insertion loss formula
technical information
for specifying products
simple engineering calculation model
with universal variable diameter
telecom cable snaps
solid beads and toroids
extra large toroids
flat cable clamps
attenuation by part number
material properties
impedance performance by frequency
typical performance characteristics
up to 6.66” inside diameter
for flat cables and flex circuits
cable size by part number
recommended cable sizes
low profile flat cable clamps
for flat cables and flex-circuits
testing aids
30
34
engineering kits and test equipment
test fixtures, test probes
low profile solids
for flat cables and flex-circuits
rectangular solids
test probes
for flat cables and flex circuits
electric and magnetic near-field detectors
universal wideband bus bar ferrites
extra large openings for most sizes
installation, ordering, part # reference
35
36
39
installation guidelines for ferrites
cable size, positioning, attachment options
all catalog items in stock at all times
Low-Frequency Material (33 Material)
22
23
low frequency cable snaps
for round cables
all part numbers by page number
ordering
low frequency cable clamps
for flat cables and flex circuits
High-Frequency Material (25 Material)
24
25
high frequency cable snaps
for round cables
general information, customer samples,
ISO 9001:2008 Quality System Registration, RoHS
high frequency cable clamps
for flat cables and flex circuits
Bluetooth/Microwave Material (20 Material)
26
27
bluetooth/microwave cable snaps
for round cables
for flat cables
bluetooth/microwave cable clamps
3
ISO 9001: 2008
CERTIFIED
RoHS
✔
COMPLIANT
FerriShield Ferrites
Simply one of the most flexible
and cost-effective cable shielding
solutions on the market
PRODUCT OVERVIEW:
4 Frequency-Specific Ferrite Formulations
• 28 Material
• 33 Material
• 25 Material
• 20 Material
Wideband Ferrite (Most Popular)
Low-Frequency Ferrite
High-Frequency Ferrite
Bluetooth/Microwave Ferrite
1,000s of Styles and Sizes
• Solid and Bisected Styles
• I.D.’s from .034” to 6.6”
• Round, Square & Flat Shapes
• Special application designs
10 Flexible, Quick Mounting Options
Integrated Mounting Options:
•
•
•
•
•
Snug Cable-Fit
Button Mount
Adhesive Mount
Screw Mount
Flexible-Grip End Ports
2-Piece Mounting Options:
•
•
•
•
•
Cable Tie Base
Press Fit Base
Adhesive Mount Base
Screw Mount Base
Screw Mount Strap
www.leadertechinc.com
ISO 9001:2008 registered
4
HOW TO
select a FerriShield Ferrite for your application
1
Choose a ferrite material
Ferrite
28 Material- Most Popular Wideband
33 Material- Low-Frequency Ferrite
25 Material- High-Frequency Ferrite
20 Material- Bluetooth/Microwave
FerriShield ferrites are offered in (4) unique formulations. The chart below offers an overview
of typical material properties and catalog page references.
Performance
10MHz-1GHz (250MHz peak)
1MHz-60MHz (30MHz peak)
1MHz-1.2GHz (700MHz peak)
2.45GHz peak
Catalog Pages
10 to 21
22 to 23
24 to 25
26 to 27
For detailed Attenuation and Material Properties see page 32 and 33
2
Select a mounting option
Each section of this catalog features multiple mounting options for bisected and solid
bead ferrites. FerriShield Ferrites are recognized for their ease of installation and reliable
performance over time.
3
Select the inside diameter of your ferrite
FerriShield Ferrites are designed to fit tight against the cable or wiring bundle that requires
shielding. Ideally, you should select a ferrite with an inside diameter that is slightly less
(+/- .04”) than the outside diameter of your cable.
For quick reference, all part numbers in this catalog have an accompanying technical drawing
and specifications chart that illustrates dimensions and impedance for the selected ferrite.
For a more detailed technical explanation see page 33.
Helpful Tips and Insider Hints
• Ferrite performance typically increases as ferrite volume increases. The larger the
ferrite mass, the better the RF attenuation.
• Smaller cables can be looped through larger ferrites to increase performance.
Impedance increase by the square of the number of loops. For example, by
looping a cable through a ferrite 2 times (2
2
), impedance increases by a factor of 4.
For a detailed explanation see page 6- Electromagnetic Characteristics
• Ferrite installation guidelines and recommendations are shown on page 35
• Attenuation properties by part number can be referenced on page 32
• Maximum recommend cable size by part number can be found on page 33
5
FPGA/CPLD
