The Leading Source for EMI Shielding
Reliable Board, Enclosure and Cable Solutions
B
C
E
A
D
.030"
(0,76)
very high impedance multi-turn sleeve snap
WITH SERPENTINE CABLE THREADING CAPABILITY.
By increasing the number of times the circuit passes through the ferrite core, the
effective magnetic path is lengthened yielding a significant increase in impedance.
See page 4, figures 3 and 4. The gain is equal to N
2
, the square of the number of
turns, and depending on the circuit cable load and frequencies involved, much of
the increase can be realized.
Cables may be “looped back through” as shown at left; or, “looped over the top” as
shown at left (insert).
In an alternate configuration, separate cable circuits can be accommodated without
saturation. Three styles permit different approaches:
The
1-hole
allows two passes of a cable with a diameter up to .365”
(9
,3mm)
or three passes of a cable with a diameter up to .243” (6,2mm).
The
2-hole
allows two passes of a cable with a diameter up to .335” (8,5mm).
The
3-hole
allows three passes of cable with a diameter up to .203” (5,8mm).
Each is available with an optional adhesive foam pad mounting base.
Available in standard colors gray (i.e., SS28B2035) and black (i.e., SS28B2035K)
Patent No. 5,003,278
SS28B2035
1-hole
.030"
(0,76)
Optional adhesive pad
F
C
B
A
D
Optional adhesive pad
B
SS28B2035-2
2-holes
.030"
(0,76)
Optional adhesive pad
E
C
A
D
B
SS28B2035-3
3-holes
.030"
(0,76)
Optional adhesive pad
E
C
A
D
E
PART No.
SS28B2035
SS28B2035-2
SS28B2035-3
w/Adhesive
AS28B2035
AS28B2035-2
AS28B2035-3
Description
A
B
C
D
E
IMPEDANCE IN OHMS ref.
1-hole
1.155
29,3
1.250
31,8
1.125
28,6
.780
19,8
1.230
31,2
1N=129* 2N=2
2
=4NΩ
ref.
2-hole
1.155
29,3
1.250
31,8
1.125
28,6
.335
8,5
1.230
31,2
1N=270* 3N=3
2
=9NΩ
ref.
3-hole
1.155
29,3
1.250
31,8
1.125
28,6
.203
5,2
1.230
31,2
1N=340*
depending on circuit
load and frequency
* @ 100 MHz
performance by part number:
TYPICAL PERFORMANCE
1000
28A0592
28A0593
28B2035-15/28A0434
28B2032/2036/2040/2034
28B2030/2033/2037/2031
28B0375-3
28B2035
1000
28B2035-3
28B1779/0617
28B2041/2042/2035-2
28R0984-0
28B0785/1501/2440
0625-0/0375-3
28B2002/1953
28B3149
TYPICAL PERFORMANCE
IMPEDANCE (Ω)
100
IMPEDANCE (Ω)
100
10
10
1
1M
10M
100M
FREQUENCY (Hz)
1G
1
1M
10M
100M
FREQUENCY (Hz)
1G
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