SFSWG & SFSWR EMI Panel Filters

Syfer / Knowles SFSWG and SFSWR Electromagnetic Interference (EMI) Panel Filters are feedthrough capacitors featuring a hermetic glass seal with a flange end. These Syfer / Knowles EMI panel filters offer a 10pF to 33nF wide capacitance range and voltage ratings of 100V, 200V, and 500V. The SFSWG and SFSWR provide high insulation resistance of 10GΩ or 1000ΩF and a wide operating temperature range of -55°C to +125°C. Applications include EMI suppression, medical imaging equipment, military communication devices, and high-reliability power and signal lines.

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Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Capacitance
Voltage Rating DC
Termination Style
Tolerance
Number of Terminals
Length
Diameter
Product
Current Rating
Minimum Operating Temperature
Maximum Operating Temperature
Dielectric
Series
Packaging
Knowles Syfer Feed Through Capacitors 100V 33nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

0.033 uF 100 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 200V 15nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

0.015 uF 200 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 200V 22nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

0.022 uF 200 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 10pF -20% +80% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

10 pF 500 VDC Solder - 20 %, + 80 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G Bulk
Knowles Syfer Feed Through Capacitors 500V 100pF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

100 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 1.0nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

1000 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 10nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

0.01 uF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 150pF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

150 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 1.5nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

1500 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 22pF -20% +80% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

22 pF 500 VDC Solder - 20 %, + 80 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G Bulk
Knowles Syfer Feed Through Capacitors 500V 220pF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

220 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 2.2nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

2200 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 33pF -20% +80% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

33 pF 500 VDC Solder - 20 %, + 80 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G Bulk
Knowles Syfer Feed Through Capacitors 500V 330pF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

330 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 3.3nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

3300 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 47pF -20% +80% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

47 pF 500 VDC Solder - 20 %, + 80 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 470pF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

470 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 4.7nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

4700 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 68pF -20% +80% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

68 pF 500 VDC Solder - 20 %, + 80 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 680pF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

680 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 500V 6.8nF +/-20% Flange end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

6800 pF 500 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWG Bulk
Knowles Syfer Feed Through Capacitors 100V 33nF +/-20% Bottom end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

0.033 uF 100 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWR Bulk
Knowles Syfer Feed Through Capacitors 200V 15nF +/-20% Bottom end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

0.015 uF 200 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWR Bulk
Knowles Syfer Feed Through Capacitors 200V 22nF +/-20% Bottom end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

0.022 uF 200 VDC Solder 20 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C X7R SFSWR Bulk
Knowles Syfer Feed Through Capacitors 500V 10pF -20% +80% Bottom end seal
Datasheet
100Expected 23/09/2026
Min.: 1
Mult.: 1

10 pF 500 VDC Solder - 20 %, + 80 % 2 Terminal 3.29 mm 3.25 mm EMI Filter 5 A - 55 C + 125 C C0G SFSWR Bulk