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Surface Mount EMI Filters
Surface Mount Pi Filters
SBSP
A new range of miniature surface mount pi-filters has been launched
by Syfer Technology. In a size of only 1206, it offers an unbeatable
combination of size and performance. With a 1A current rating, the
SBSP range is available with working voltages up to 100Vdc. The use
of X7R and C0G ceramic dielectrics allows capacitance values from
22pF to 150nF, making it suitable for both signal and power lines
and ensuring impressive EMI filtering performance up to 1GHz and
higher. Ideal for telecoms, power supplies and industrial electronic
equipment, the operating temperature range of -55°C to 125°C
ensures they are also suitable for mil/aerospace applications.
Circuit configuration
Electrical Specifications
mm
(inches)
L
3.2mm ± 0.3
(0.126” ± 0.012”)
W
1.6mm ± 0.2
(0.063” ± 0.008”)
T
1.6mm ± 0.2
(0.063” ± 0.008”)
L1
0.95 ± 0.3
(0.037” ± 0.012”)
L2
0.5 ± 0.25
(0.020” ± 0.010”)
Electrical Configuration Pi Filter
Capacitance Measurement At 1000hr point
Rated Current 1 amp dc
Operating Temperature -55°C to 125°C
DC Resistance 0.5 Ohms Max
Weight 0.5g typical (0.18oz)
Dielectric Withstand Voltage Rated Voltage
Pi
T
DWV
100Vdc
250Vdc
50Vdc
125Vdc
25Vdc
63Vdc
Ferrite Inductance
0.25µH
Type No.
Capacitance
Dielectric
Rated
Typical Insertion Loss (dB) 50 ohm System No Load
Pi Section
(±20%)
Code
Voltage
(Vd.c.)
0.1MHz
1MHz
10MHz
100MHz
1GHz
SBSPP1000220MC#¹
22pF
C0G
100
0
0
0
1
12
SBSPP1000470MC#¹
47pF
C0G
100
0
0
0
3
21
SBSPP1000101MC#¹
100pF
C0G
100
0
0
0
7
32
SBSPP1000221MC#¹
220pF
C0G
100
0
0
1
13
45
SBSPP1000471MC#¹
470pF
C0G
100
0
0
2
22
58
SBSPP1000102MX#¹
1nF
X7R
100
0
0
5
33
60+
SBSPP 1000152MX#¹
1.5nF
X7R
100
0
0
9
40
60+
SBSPP 1000222MX#¹
2.2nF
X7R
100
0
0
11
47
60+
SBSPP 1000332MX#¹
3.3nF
X7R
100
0
0
14
54
60+
SBSPP 1000472MX#¹
4.7nF
X7R
100
0
1
19
57
60+
SBSPP 1000682MX#¹
6.8nF
X7R
100
0
2
24
60+
60+
SBSPP 1000103MX#¹
10nF
X7R
100
0
5
29
60+
60+
SBSPP 1000153MX#¹
15nF
X7R
100
0
7
36
60+
60+
SBSPP 0500223MX#¹
22nF
X7R
50
0
11
42
60+
60+
SBSPP 0500333MX#¹
33nF
X7R
50
0
14
51
60+
60+
SBSPP 0500473MX#¹
47nF
X7R
50
1
16
57
60+
60+
SBSPP 0500683MX#¹
68nF
X7R
50
3
19
60+
60+
60+
SBSPP 0250104MX#¹
100nF
X7R
25
5
21
60+
60+
60+
SBSPP 0250154MX#¹
150nF
X7R
25
8
23
60+
60+
60+
Note #¹ T = Taped, B = Bulk, R = Large Reel
Insertion loss figures quoted are for filters mounted within a partition, it should be noted that some degradation will occur at higher frequencies for filters
which are not fully shielded.
SBSP
Mounting Information and Soldering Procedures
SM Pi chip filter mounted to board and soldered in identical manner to chip capacitor.
Solder connections made to each end (signal lines) and each side band (earth track).
Recommended Pad/Track details
Pad spacing = 2.00 (0.079)
Signal pad overall
minimum = 3.8 (0.149)
Side bands provide earth contact points.
Bands are formed on the sides of the chip only
and are not continuous underneath the chip.
Solder joints must be made to both side bands
to ensure effective filtering.
Mount on board
with Ferrite upwards
Signal
track
Earth pad
overall minimum
= 2.90 (0.114)
Signal track
Chip soldered
to Signal track
at both ends
Signal track width
= 1.60 (0.063")
Earth track
Coloured area to
be solderable and
free from varnish
Earth
track
Signal track width
1.60 (0.063")
Signal
track
Signal
track
Chip
Filter
Chip soldered
to Earth track
both sides
1. For effects of mounting method on Insertion Loss page 82.
2. For details of ordering see page 82.
3. For soldering and installation information see page 75.
#¹ For taping on 7” reel insert “T”, on 13” reel insert “R”, if supplied in
bulk insert “B”. (For taped quantities see page 82).
79
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Surface Mount EMI Filters
Surface Mount C and Pi Filters
SBSG
The SBSG range has a 5A current rating for the Pi type, and 10A rating
for the C type. Suitable for pick-and-place, these miniature surface
mount filters offer assembly savings compared with conventional panel
mounted filters. The combination of high current, high capacitance
and high voltage makes them suitable for a wide range of applications
including telecoms, mil/aerospace and industrial.
Specifications
mm
(inches)
L
5.25 ± 0.4
(0.207 ± 0.015)
W
3.20 ± 0.2
(0.126 ± 0.008)
T
2.50 ± 0.15
(0.098 ± 0.006)
L1
1.50 ± 0.4
(0.059 ± 0.015)
L2
0.30 ± 0.25
(0.012 ± 0.010)
C
Electrical Configuration C & Pi Filters
Capacitance Measurement At 1000hr point
Current Rating Pi Section 5 amps dc
C Section 10 amps dc
Temperature Rating -55°C to 125°C
DC Resistance 0.005 Ohms Max.
Ferrite Inductance, typical 0.5µH (Pi Section only)
Weight
T
Pi
0.2g typical (0.007oz)
Type No.
Capacitance Dielectric Rated
DWV
Typical Insertion Loss (dB) 50 ohm System No Load
C Section Pi Section
0.1MHz 1MHz 10MHz 100MHz 1GHz 0.1MHz 1MHz 10MHz 100MHz 1GHz
0
( * = Preferred Value)
(M = +/-20%) Code
Voltage (Vd.c.)
(Vd.c.)
* SBSG#¹ 5000102MX#² 1.0nF
X7R
500
750
0
4
23
41
0
0
5
33 60+
SBSG#¹ 5000152MX#² 1.5nF
X7R
500
750
0
0
7
26
45
0
0
9
40 60+
* SBSG#¹ 5000222MX#² 2.2nF
X7R
500
750
0
0
10
30
50
0
0
11
47 60+
SBSG#¹ 5000332MX#² 3.3nF
X7R
500
750
0
0
13
33
52
0
0
14
54 60+
* SBSG#¹ 5000472MX#² 4.7nF
X7R
500
750
0
1
16
36
55
0
1
19
57 60+
SBSG#¹ 5000682MX#² 6.8nF
X7R
500
750
0
2
19
39
57
0
2
24 60+ 60+
* SBSG#¹ 5000103MX#² 10nF
X7R
500
750
0
4
22
41 60+
0
5
29 60+ 60+
* SBSG#¹ 5000153MX#² 15nF
X7R
500
750
0
7
25
44 60+
0
7
36 60+ 60+
* SBSG#¹ 5000223MX#² 22nF
X7R
500
750
0
10
29
46 60+
0
11
42 60+ 60+
SBSG#¹ 5000333MX#² 33nF
X7R
500
750
0
13
33
48 60+
0
14
51 60+ 60+
* SBSG#¹ 5000473MX#² 47nF
X7R
500
750
1
16
35
50 60+
1
16
57 60+ 60+
SBSG#¹ 2000683MX#² 68nF
X7R
200
500
2
19
39
54 60+
3
19 60+ 60+ 60+
* SBSG#¹ 1000104MX#² 100nF
X7R
100
250
4
22
41
57 60+
5
21 60+ 60+ 60+
* SBSG#¹ 1000154MX#² 150nF
X7R
100
250
7
25
45 60+ 60+
8
23 60+ 60+ 60+
* SBSG#¹ 0500224MX#² 220nF
X7R
50
125
10
29
49 60+ 60+
11
27 60+ 60+ 60+
Insertion loss figures quoted are for filters mounted within a partition. It should be noted that some degradation will occur at higher
frequencies for filters which are not fully shielded.
SBSG
PAD DIMENSIONS - C & Pi Filter
SM Pi or C filter mounted to board
and soldered in identical manner to
chip capacitor.
Solder connections made to each
end (signal lines) and each side
band (earth track).
Side bands provide earth contact points.
Bands are formed on the sides of the chip only
and are not continuous underneath the chip.
Solder joints must be made to both side bands
to ensure effective filtering.
Signal track
Earth pad overall minimum = 5.80 (0.228")
Earth track
Signal track width = 3.2mm (0.126")
Signal track width
3.2 (0.126")
Signal track
Coloured area to be solderable
and free from varnish
Mount on board with
Ferrite Bead / slot upwards
Signal pad overall minimum = 8.00 (0.315")
Signal track
Notes on pad design
1. Pad / track design assumes 2oz copper track material.
2. Track width quoted allows for operation at max. rated current at 125°C.
3. Different operating conditions may allow alternative track designs to be
used. Although any pad must be able to support continuous opertating
current at max. operating temperature.
Chip soldered
to Signal track
at both ends
Earth track
Chip soldered to Earth
track at (both sides)
Signal track
Chip Filter
1. For effects of mounting method of Insertion Loss see page 82.
2. For details of ordering see page 82.
3. For soldering and installation information see page 75.
#¹ For C Filter insert “C”, for Pi Filter insert “P”.
#² For taping on 7” reel insert “T”, on 13” reel insert “R”, if supplied in
bulk insert “B”. (For taped quantities see page 82).
80
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Surface Mount EMI Filters
Surface Mount C and Pi Filters
SBSM
The SBSM range of surface mount EMI filters has been designed for
use on pcbs, and is suitable for both signal and power lines.
Capacitance values up to 470nF are available, with a 10A current
rating for pi-section filters and 20A rating for ‘C’ types. The high
capacitance, high current and high voltage ratings make them
suitable for a wide range of applications including telecoms,
mil/aerospace and industrial.
Specifications
mm
(inches)
L
6.6 ± 0.4
(0.260 ± 0.015)
W
5.0 ± 0.4
(0.197 ± 0.015)
T
3.18 ± 0.13
(0.125 ± 0.005)
L1
2.25 ± 0.4
(0.088 ± 0.015)
L2
0.3 ± 0.25
(0.012 ± 0.01)
C
Electrical Configuration C & Pi Filters
Capacitance Measurement At 1000hr point
Current Rating Pi Section 10 amps dc
C Section 20 amps dc
Temperature Rating -55°C to 125°C
DC Resistance 0.005 ohms max
Ferrite Inductance, typical 0.5µH (Pi section only)
Weight
T
Pi
0.5g typical (0.18oz)
Type No.
Capacitance Dielectric Rated
DWV
Typical Insertion Loss (dB) 50 ohm System No Load
C Section Pi Section
0.1MHz 1MHz 10MHz 100MHz 1GHz 0.1MHz 1MHz 10MHz 100MHz 1GHz
0
( * = Preferred Value)
(M = +/-20%) Code
Voltage (Vd.c.)
(Vd.c.)
* SBSM#¹ 5000102MX#² 1.0nF
X7R
500
750
0
4
23
41
0
0
5
33 60+
SBSM#¹ 5000152MX#² 1.5nF
X7R
500
750
0
0
7
26
45
0
0
9
40 60+
* SBSM#¹ 5000222MX#² 2.2nF
X7R
500
750
0
0
10
30
50
0
0
11
47 60+
* SBSM#¹ 5000332MX#² 3.3nF
X7R
500
750
0
0
13
33
52
0
0
14
54 60+
* SBSM#¹ 5000472MX#² 4.7nF
X7R
500
750
0
1
16
36
55
0
1
19
57 60+
SBSM#¹ 5000682MX#² 6.8nF
X7R
500
750
0
2
19
39
57
0
2
24 60+ 60+
* SBSM#¹ 5000103MX#² 10nF
X7R
500
750
0
4
22
41 60+
0
5
29 60+ 60+
* SBSM#¹ 5000153MX#² 15nF
X7R
500
750
0
7
25
44 60+
0
7
36 60+ 60+
* SBSM#¹ 5000223MX#² 22nF
X7R
500
750
0
10
29
46 60+
0
11
42 60+ 60+
SBSM#¹ 5000333MX#² 33nF
X7R
500
750
0
13
33
48 60+
0
14
51 60+ 60+
* SBSM#¹ 5000473MX#² 47nF
X7R
500
750
1
16
35
50 60+
1
16
57 60+ 60+
SBSM#¹ 5000683MX#² 68nF
X7R
500
750
2
19
39
54 60+
3
19 60+ 60+ 60+
* SBSM#¹ 2000104MX#² 100nF
X7R
200
500
4
22
41
57 60+
5
21 60+ 60+ 60+
SBSM#¹ 2000154MX#² 150nF
X7R
200
500
7
25
45 60+ 60+
8
23 60+ 60+ 60+
* SBSM#¹ 1000224MX#² 220nF
X7R
100
250
10
29
49 60+ 60+
11
27 60+ 60+ 60+
* SBSM#¹ 1000334MX#² 330nF
X7R
100
250
13
33
52 60+ 60+
14
35 60+ 60+ 60+
* SBSM#¹ 0500474MX#² 470nF
X7R
50
125
16
35
55 60+ 60+
17
41 60+ 60+ 60+
Insertion loss figures quoted are for filters mounted within a partition. It should be noted that some degradation will occur at higher frequencies for filters
which are not fully shielded.
SBSM
PAD DIMENSIONS - Pi Filter
SM Pi or C filter mounted to board
and soldered in identical manner to
chip capacitor.
Solder connections made to each
end (signal lines) and each side
band (earth track).
Side bands provide earth contact points.
Bands are formed on the sides of the chip only
and are not continuous underneath the chip.
Solder joints must be made to both side bands
to ensure effective filtering.
Earth track width = 2.0mm (0.079")
Earth pad overall minimum = 7.80 (0.307")
Signal track width = 5.0mm (0.197")
Signal track
Coloured area to be solderable
and free from varnish
Signal pad overall minimum = 9.40 (0.370")
Earth track
PAD DIMENSIONS - C Filter
Signal track width
5.0 (0.197")
Signal track
Earth pad overall minimum = 7.80 (0.307")
Earth track width
= 2.0mm (0.079")
5.0mm (0.197")
Signal track
Chip soldered
to Signal track
at both ends
Signal track width = 10.0mm (0.394")
Earth track
Coloured area to be solderable
and free from varnish
Chip soldered to Earth
track at (both sides)
Signal track
Signal pad overall minimum = 9.40 (0.370")
Chip Filter
1. For effects of mounting method on Insertion Loss page 82.
2. For details of ordering see page 82.
3. For soldering and installation information see page 75.
#¹ For C Filter insert “C”, for Pi Filter insert “P”.
#² For taping on 7” reel insert “T”, on 13” reel insert “R”, if supplied in
bulk insert “B”. (For taped quantities see page 82).
81
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Surface Mount EMI Filters
Surface Mount C and Pi Filters
SBSP/SBSG/
SBSM
Effects of mounting method on Insertion Loss
Whilst SBSG, SBSM and SBSP filters can be mounted conventionally
on pcbs, they are also suitable for mounting in a wall or partition on
a board. This greatly improves the screening between filter input
and output, thereby enhancing the high frequency response.
The following insertion loss curves, based on actual measurements,
show the effect. It can be seen that the filters conventionally
mounted (Fig. 1) exhibit a drop in attenuation at higher
frequencies. The types mounted in a partition, however (Fig. 2),
maintain excellent suppression characteristics to 1GHz and above.
Figure 1. Filters mounted on open pcb
Figure 2. Filters mounted in wall or partition
Frequency (MHz)
Frequency (MHz)
Comparison of insertion loss curves for SBSP, SBSG, SBSM Pi Filters
Ordering Information
SBSP, SBSG, SBSM & Ranges
SB
Syfer
Board
Filter
M
Size
P =
1206
G =
5.25 x
3.2mm
M =
6.6 x
5.0mm
P
Electrical
Configuration
C=C Section
P=Pi Section
500
Voltage
025 = 25Vdc
050 = 50Vdc
100 = 100Vdc
200 = 200Vdc
500 = 500Vdc
0102
M
Capacitance
Tolerance
M=±20%
(Standard)
X
Dielectric
C=C0G
X=X7R
T
Packaging
T=Taped on
178mm
(7”) reel
R=Taped on
330mm
(13”) reel
B=Bulk
Capacitance
Expressed in picofarads (pF).
First digit is 0.
Second and third digits are significant
figures of capacitance code.
The fourth digit is number of zeros
following.
Example: 0472=4700pF.
Taped Quantities
SBSP
SBSG/SBSM
Reel size
Qty
Qty
178mm (7”)
1500
500
330mm (13”)
6000
2000
82
S
Mounting
S= Surface
Mount
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