SBSP
Surface Mount EMI Filters
1206
L
W
T
B1
B2
3.2 ± 0.3
(0.126 ± 0.012)
1.6 ± 0.3
(0.063 ± 0.012)
1.6 ± 0.2
(0.063 ± 0.008)
0.95 ± 0.3
(0.037 ± 0.012)
0.5 ± 0.25
(0.02 ± 0.01)
Type
Chip Size
Max Current
Rated
Voltage
SBSPP
1206
1A
Minimum and
maximum
capacitance
values
-
100nF-150nF
-
22nF-68nF
22pF-470pF
1nF-15nF
Dielectric
C0G/NP0
25Vdc
X7R
C0G/NP0
50Vdc
X7R
C0G/NP0
100Vdc
X7R
Effects of mounting method on insertion loss
C and Pi filters are mounted to PCBs and soldered in identical manner to chip capacitors. Solder connections made to each end (signal lines) and
each side band (earth track).
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 (for SBSP, SBSG, SBSM Pi filters), 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. Improved shielding methods (Fig. 2), maintain excellent
suppression characteristics to 1GHz and above. See below for application example.
© Knowles 2014
SBSPDatasheet Issue 4 (P109792) Release Date 04/11/14 Page 1 of 3
Tel: +44 1603 723300 | Email SyferSales@knowles.com | www.knowlescapacitors.com/syfer
Insertion loss tables for surface mount EMI filters - Pi filter
Typical No-Load Insertion Loss (dB)*
Approximate
Resonant
Frequency
(MHz)
1000
620
400
260
180
120
90
72
59
50
38
33
26
21
17
13
10
8.5
7
Product Code
Packing
Capacitance
(±20%)
Dielectric
Rated
Voltage
(dc)
100MHz
0.1MHz
10MHz
1MHz
DWV
(dc)
SBSPP1000220MC
SBSPP1000470MC
SBSPP1000101MC
SBSPP1000221MC
R = Tape-and-Reel (330mm / 13” reels)
T = Tape-and-Reel (178mm / 7” reels)
SBSPP1000471MC
SBSPP1000102MX
SBSPP1000152MX
B = Bulk Packed
SBSPP1000222MX
SBSPP1000332MX
SBSPP1000472MX
SBSPP1000682MX
SBSPP1000103MX
SBSPP1000153MX
SBSPP0500223MX
SBSPP0500333MX
SBSPP0500473MX
SBSPP0500683MX
SBSPP0250104MX
SBSPP0250154MX
22pF
47pF
100pF
220pF
470pF
1.0nF
1.5nF
2.2nF
3.3nF
4.7nF
6.8nF
10nF
15nF
22nF
33nF
47nF
68nF
100nF
150nF
C0G
C0G
C0G
C0G
C0G
X7R
X7R
X7R
X7R
X7R
X7R
X7R
X7R
X7R
X7R
X7R
X7R
X7R
X7R
100
100
100
100
100
100
100
100
100
100
100
100
100
50
50
50
50
25
25
250
250
250
250
250
250
250
250
250
250
250
250
250
125
125
125
125
67.5
67.5
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
3
6
8
0
0
0
0
0
0
0
0
1
2
4
5
8
10
13
16
20
19
24
0
0
0
1
2
4
7
9
13
14
24
24
32
38
46
50
54
52
56
2
4
7
14
25
37
37
37
37
37
37
37
37
37
37
37
37
37
37
22
16
14
12
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
* - Insertion Loss performance quoted is measured on an open board mounted on a brass backplane in a 50Ω system. Performance curves can be supplied on request. Performance in
circuit is liable to be different and is affected by board material, track layout, grounding efficiency and circuit impedances. Shielding can be used to improve high frequency
performance.
Ordering Information
SBS
Type
Surface
mount board
filter
P
Size
P = 1206
P
Configuration
P
= Pi Section
500
Rated Voltage
050 = 50Vdc
100 = 100Vdc
200 = 200Vdc
500 = 500Vdc
0473
Capacitance in Pico farads (pF)
First digit is 0.
Second and third digits are significant
figures of capacitance code. The fourth
digit is number of zeros following.
Example:
0473
= 47nF
M
Tolerance
M = ±20%
X
Dielectric
X = X7R
T
Packaging
T=178mm
(7”) reel
R=330mm
(13”) reel
B = Bulk
Reeled Quantities
178mm (7”) reel
1206
1500
330mm (13”) reel
1206
6000
© Knowles 2014
SBSPDatasheet Issue 4 (P109792) Release Date 04/11/14 Page 2 of 3
Tel: +44 1603 723300 | Email SyferSales@knowles.com | www.knowlescapacitors.com/syfer
1GHz
Surface mount and panel mount solder-in filters
Solder pad layouts are included with the detailed information
for each part.
Recommended soldering profile
260°C. For SBSG, SBSM and SFSS ranges, solder time should
be minimised, and the temperature controlled to a maximum
of 220°C. For SFSR, SFST and SFSU ranges the maximum
temperature is 250°C.
Cooling to ambient temperature should be allowed to occur
naturally. Natural cooling allows a gradual relaxation of
thermal mismatch stresses in the solder joints. Draughts
should be avoided. Forced air cooling can induce thermal
breakage, and cleaning with cold fluids immediately after a
soldering process may result in cracked filters.
Note: The use of FlexiCap™ terminations is strongly
recommended to reduce the risk of mechanical cracking.
Soldering to axial wire leads
Soldering temperature
The tip temperature of the iron should not exceed 300°C.
Dwell time
Dwell time should be 3-5 seconds maximum to minimise the
risk of cracking the capacitor due to thermal shock.
Heat sink
Where possible, a heat sink should be used between the solder
joint and the body, especially if longer dwell times are
required.
Bending or cropping of wire leads
Bending or cropping of the filter terminations should not be
carried out within 4mm (0.157”) of the epoxy encapsulation,
the wire should be supported when cropping.
A more comprehensive application note covering
installation of all Syfer products is available on the
Syfer website.
Soldering of filters
The soldering process should be controlled such that the filter
does not experience any thermal shocks which may induce
thermal cracks in the ceramic dielectric.
The pre-heat temperature rise of the filter should be kept to
around 2°C per second. In practice successful temperature
rises tend to be in the region of 1.5°C to 4°C per second
dependent upon substrate and components.
The introduction of a soak after pre-heat can be useful as it
allows temperature uniformity to be established across the
substrate thus preventing substrate warping. The magnitude
or direction of any warping may change on cooling imposing
damaging stresses upon the filter.
E01, E03, E07 SBSP ranges are compatible with all standard
solder types including lead-free, maximum temperature
© Knowles 2014
SBSPDatasheet Issue 4 (P109792) Release Date 04/11/14 Page 3 of 3
Tel: +44 1603 723300 | Email SyferSales@knowles.com | www.knowlescapacitors.com/syfer
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