Through-hole Filters
High Frequency PCB Filters
API Technologies’ Spectrum Control line of high frequency
PCB filter provides EMI filtering to protect low power
digital circuits, while meeting most government and
industrial specifications for EMI control. With low assembly
and installation costs, the PCB filter helps keep your
project on budget. By mounting the PCB filter at the
source of the problem, we eliminate the need for
additional filtering at other points in the circuit. The filter
mounts directly to a printed circuit board with no mounting
bracket or plate needed, providing you with a lower total
installed cost. In addition, the PCB filter can be flow-
soldered with other components.
API’s PCB filter has built-in standoffs, which allow
for cleaning or coating beneath the filter, and the filter
is encapsulated for environmental protection.
Typical Electrical Characteristics
Current
. . . . . . . . . . . . . . . Max. 10A DC; 0.3A RF
Operating Voltage
. . . . . . . . Max. 50 VDC, -25°C to +85°C
Capacitance
. . . . . . . . . . . . 800 pF min.
Dissipation Factor
. . . . . . . . 0.1 Max.
Dielectric
Withstanding Voltage
. . . . . 125 VDC for 5 seconds
Insulation Resistance.
. . . . . Min. 100 MegOhms at 100 VDC
. . . . . . . . . . . . . . . . . . . . .
for 2 minutes and 25°C
Direct Current
Resistance.
. . . . . . . . . . . . . 0.002 ohms Max.
Minimum No-Load
Insertion Loss
. . . . . . . . . . . Per MIL-STD-220 at 25°C; PCB
mounted, 50 ohm strip line
3dB @ 8 MHz
10dB @ 25 MHz
15dB @ 50 MHZ
20dB @ 100 MHz-1GHz
Features
s
s
s
s
s
Provides EMI filtering to protect low power digital
circuits - helps equipment meet FCC and VDE
specifications
Mounts directly to printed circuit board with no bracket
or plate for lower applied costs - can be flow soldered
with other components
Encapsulated for environmental protection
Mounts on PCB to begin filtering at the source
of the problem
Built-in standoffs permit cleaning or coating
under the filter
Pi
Preformed to Recommended Mounting Configuration
Part Number 842448-2
Recommended Mounting Configuration
.600
±.030
(15.24
±0.76
)
.062
(1.57)
Ref.
1.040
(26.42)
.300
±.010
(7.62
±0.25
)
Circuit Schematic
Input
Output
.600
±.030
(15.24
±0.76
)
.062
Ground
(1.57)
Ref.
.015
(0.38)
Ref.
.015
(0.38)
Ref.
.200
±.010
(5.08
±0.25
)
.240
±.020
Ground.040
(6.10
±0.51
)
(1.02)
.062
(1.57)
Ref.
Lead
Dia.
Recommended PCB Hole Layout
.600
±.010
.600
±.030
(15.24
±0.25
) )
(15.24
±0.76
.062
(1.57)
Ref.
+
.300
±.005
(7.62
±0.13
)
+
+
.015
(0.38)
Ref.
.300
(7.62
±0.38
)
±.015
Ground
Lead
.062
(1.57)
Ref.
.032
(0.81)
Dia.
.300
±.015
Ground
(7.62
±0.38
)
Lead
.520
(13.21)
Ref.
Dimensions in inches
±0.64
)
(3.18
(mm)
.125
±.025
.600
Standard Configuration
)
(15.24
±.010
±0.25
1.040
(26.42)
.300
±.005
±.010 ±0.13
)
(7.62
.300
(7.62
±0.25
)
+
+
.055
±.002
(1.4
±0.05
)
Dia.
Part Number 842448-1
+
.055
±.002
(1.4
±0.005
)
±.020
.040 .240
±0.51
Dia.
(1.02) (6.10 )
Dia.
.200
±.010
(5.08
±0.25
)
.040
±.002
(1.02
±0.05
)
Dia.
.040
±.002
.055
±.002
.055
±.002
(1.4
±0.05
)
(1.02
±0.05
)
(1.4
±0.005
)
Ground Dia.
Dia.
Dia.
Lead
.300
±.015
(7.62
±0.38
)
.062
(1.57)
Ref.
.032
(0.81)
Dia.
Ground
Lead
.520
(13.21)
Ref.
.125
±.025
(3.18
±0.64
)
Dimensions in inches
(mm)
Dimensions in inches
(mm)
SM21
API TECHNOLOGIES
• 8061 Avonia Rd. • Fairview, PA 16415 • Ph: 814-474-1571 • Fax: 814-474-3110 • eis.apitech.com
API TECHNOLOGIES’ SPECTRUM CONTROL GmbH
• Hansastrasse 6 • 91126 Schwabach, Germany • Phone: (49)-9122-795-0 • Fax: (49)-9122-795-58
±.010
.600
(15.24
±0.25
)
Talking
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