Part Number Nomenclature
Ferrite Cable Core Products
28B0250-100
(Part number example in
BOLD)
28
Material Type
B
Product Type Code
0250
Part Size Code
-1
Selected
Dimension
Code
0
Addtional Part
Description
0
Additional Part
Description
28
= Broad Band
Material
HF
=High Frequency
Material
LF
= Low Frequency
Material
A
= Split round cores
(Snap-Ons)
B
= Round Cylindrical
Cores
R
= Ribbon Cable Cores
S
= Split Ribbon Cores
28 material
is usually
measured in
inches for OD.
HF & LF
Material OD
& ID is usually
measured in
mm.
Usually
Length
0
= Standard Part
“A” Product Type Code
A
= Plastic Case
B
= Plastic Case
“S” Product Type Code
0
= No Clip
M
= Metal Clip
P
= Plastic Clip
A
= Hinged Plastic Case
0
= Standard Part
“A” Product Type Code
0
= White Case
2
= Black Case
LF, 28, HF Material Impedance vs Frequency ( 300 KHz - 2 GHz )
Impedance Materials for Cable & Wiring Harness Cores
FERRITE MATERIAL COMPARISON
HF
Impedance ( Z ) in Ohms (
Ω
)
LF Low Freqency
28 Broad Band High Performance
HF High Freqency
28
LF
0.3
0.5
1
5
10
50
100
500
1000
2000
Freqency ( MHz )
www.steward.com
2
www.lairdtech.com
SIP-BRO-PNN-0707