Filter Concepts Inc.

SF SERIES

High Performance Switch Mode EMI Filter

SF Seriessection filters are designed to effectively attenuate differential (L/L) and common mode (L/G) noise from switch mode power conversion & regulation circuits subject to FCC Class B or CISPR/EN Class A conducted EMI limits.

Providing maximum attenuation from 150 KHz and above, the SF Series is also available with the "A" circuit option to enhance its performance in applications with high source impedance (see Filter Order Information).

 

Schematic


 

 click on the to go the mechanical drawing

Part Number1
Current
Flange
Connector
End Mount
Leakage2

SF3
3.0A
--
.80mA

SF7
7.5A
--
.80mA

SF10
10.0A
--
--
.80mA

SF15
15.0A
--
--
.80mA

SF15L
15.0A
--
--
.80mA

SF20
20.0A
--
--
.80mA

SF20L
20.0A
--
--
.80mA

SF24L
24.0A
--
1.0mA

SF24L(alt)
24.0A
--
--
1.0mA

SF30
30.0A
--
1.4mA

SF45
45.0A
--
1.4mA

SF45L
45.0A
--
1.4mA

SF60
60.0A
--
1.6mA

Rated Voltage: 250VAC, 50/60Hz

Test Voltage: Line to Line: 1.7 KVDC
Line to Gnd: 2.2 KVDC

Insertion Loss: (50 ohms, typical)

.05MHz
.15MHz
.50MHz
1.5MHz
5.0MHz
20MHz
L/L
15db
45db
60db
60db
65db
60db
L/G3
8db
45db
65db
65db
65db
60db

1 Suffix "L" calls out low profile case, see Filter Order Information for complete part number
2 Each line to ground @ 250VAC/5OHz
3 "A" option can add up to 6db in application

 

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