Feedthrough Capacitors

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Our selection of feedthrough capacitors includes panel mount, screw mount, surface mount, and through hole types.

What is a feedthrough capacitor?

The feedthrough capacitor is a three-terminal capacitor that is used to reduce high frequencies. Unlike regular three-terminal capacitors, the component is directly installed on the chassis metal panel, resulting in a lower grounding inductance and a negligible effect on the lead inductance. As a result, the component provides good filtering.

Feed-through capacitor uses

Standard capacitors are not suitable for filtering applications because they tend to introduce high impedance. This impedance, usually in the form of shunt inductance, is undesirable and can significantly affect the performance of a filtering circuit. In comparison, feedthrough capacitors do not have this undesirable inductance in the shunt branch of a filter. The inductance of these components is in the series branch.

Feedthrough capacitors are commonly used in today’s AC/DC supply lines to suppress harmful interference. They are also widely used in electronic circuits for base stations, telephone exchanges, shielded rooms, power supplies, and many other applications.

RF feedthrough capacitors are mostly used for high power applications such as dielectric and induction heating equipment, plasma generators, and radio broadcast transmitters. They are also widely used for matching high power tuned circuits, bypassing and coupling RF circuits, and coupling antenna circuits.

SMT feedthrough capacitors are suitable for a wide range of applications including:
  1. Power decoupling in amplifier circuits
  2. High frequency decoupling in power lines
  3. Filtering in digital to rf interfacing circuits
  4. Voltage conditioning in RF amplification circuits
  5. High frequency decoupling in data, clock, and control lines
 
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4400-093LF
4400-093LF - Feedthrough Capacitor, Chassis, 10000 pF, 50 V, 10 A, Screw Mount, -20%, +80%

25M3897

Feedthrough Capacitor, Chassis, 10000 pF, 50 V, 10 A, Screw Mount, -20%, +80%

TUSONIX

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10000pF - 10A - Screw Mount -20%, +80% -55°C 125°C - 10Gohm - -
2499-003-X5W0-103ZLF
2499-003-X5W0-103ZLF - CAPACITOR, FEED THROUGH, 10000PF

25M1971

CAPACITOR, FEED THROUGH, 10000PF

TUSONIX

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10000pF 500V 20A - Screw Mount -20%, +80% -55°C 85°C - 10Gohm X5W 2499-003
NFM21CC223R1H3D
NFM21CC223R1H3D - FILTER, SUPPRESSION, 0805, 22NF, 50V

84R0167

FILTER, SUPPRESSION, 0805, 22NF, 50V

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22000pF 50V 2A 0805 [2012 Metric] Surface Mount ± 20% -55°C 125°C 0.3ohm 1Gohm - NFM
NFM21PC105B1C3D
NFM21PC105B1C3D - Feedthrough Capacitor, Three Terminal, 1 µF, 16 V, 4 A, 0805 [2012 Metric], Surface Mount, ± 20%

45P3789

Feedthrough Capacitor, Three Terminal, 1 µF, 16 V, 4 A, 0805 [2012 Metric], Surface Mount, ± 20%

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1µF - 4A 0805 [2012 Metric] Surface Mount ± 20% -40°C 85°C 0.02ohm 0.5Gohm - NFM Series
2499-003-X5U0-102PLF
2499-003-X5U0-102PLF - Feedthrough Capacitor, Chassis, 1000 pF, 500 V, 20 A, Screw Mount, 0%, +100%

25M1970

Feedthrough Capacitor, Chassis, 1000 pF, 500 V, 20 A, Screw Mount, 0%, +100%

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1000pF - 20A - Screw Mount 0%, +100% -55°C 85°C - 10Gohm X5U -
NFM21CC221R1H3D
NFM21CC221R1H3D - FILTER, POWER LINE, EMI, 700MA

31Y3215

FILTER, POWER LINE, EMI, 700MA

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220pF 50V 700mA 0805 [2012 Metric] Surface Mount ± 20% -55°C 125°C 0.3ohm 1Gohm - NFM
DSS1NB32A222Q91A
DSS1NB32A222Q91A - CAP, 2200PF, 10%, 100V, 6A, RADIAL, TH ROHS COMPLIANT: YES

76AH5239

CAP, 2200PF, 10%, 100V, 6A, RADIAL, TH ROHS COMPLIANT: YES

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2200pF - 6A Radial Through Hole ± 10% -40°C 85°C - 1Gohm - EMIFIL DSS1
DSS1NB32A223Q91A
DSS1NB32A223Q91A - CAP, 0.022UF, 10%, 100V, 6A, RADIAL, TH ROHS COMPLIANT: YES

76AH5240

CAP, 0.022UF, 10%, 100V, 6A, RADIAL, TH ROHS COMPLIANT: YES

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22000pF - 6A Radial Through Hole ± 10% -40°C 85°C - 1Gohm - EMIFIL DSS1
NFM3DPC223R1H3L
NFM3DPC223R1H3L - FILTER, SUPPRESSION, 1206, 22NF, 50VDC

45P3793

FILTER, SUPPRESSION, 1206, 22NF, 50VDC

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22000pF - 2A 1206 [3216 Metric] Surface Mount ± 20% -55°C 125°C 0.05ohm 1Gohm - NFM
YFF18SC1H471MT0H0N
YFF18SC1H471MT0H0N - FILTER, FEED THROUGH, 470PF, 1A, 0603

14AC7727

FILTER, FEED THROUGH, 470PF, 1A, 0603

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470pF - 1A 0603 [1608 Metric] Surface Mount ± 20% -55°C 125°C 0.3ohm - - YFF-SC
DSS1NB32A103Q91A
DSS1NB32A103Q91A - CAP, 0.01UF, 10%, 100V, 6A, RADIAL, TH ROHS COMPLIANT: YES

76AH5237

CAP, 0.01UF, 10%, 100V, 6A, RADIAL, TH ROHS COMPLIANT: YES

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10000pF - 6A Radial Through Hole ± 10% -40°C 85°C - 1Gohm - EMIFIL DSS1
YFF31AH2A104MT0Y0N
YFF31AH2A104MT0Y0N - Feedthrough Capacitor, 0.1 µF, 100 V, 10 A, 1206 [3216 Metric], Surface Mount, ± 20%

71AH6873

Feedthrough Capacitor, 0.1 µF, 100 V, 10 A, 1206 [3216 Metric], Surface Mount, ± 20%

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0.1µF 100V 10A 1206 [3216 Metric] Surface Mount ± 20% -55°C 125°C 0.0025ohm - - YFF-AH Series
NFM41PC155B1E3L
NFM41PC155B1E3L - Feedthrough Capacitor, Three Terminal, 1.5 µF, 25 V, 6 A, 1806 [4516 Metric], Surface Mount, ± 20%

49P5423

Feedthrough Capacitor, Three Terminal, 1.5 µF, 25 V, 6 A, 1806 [4516 Metric], Surface Mount, ± 20%

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1.5µF - 6A 1806 [4516 Metric] Surface Mount ± 20% -55°C 85°C 0.009ohm 0.3Gohm - NFM Series
W3F15C2228AT1A
W3F15C2228AT1A - Multilayer Ceramic Capacitor, 2200 pF, 50 V RoHS Compliant: Yes

01M9472

Multilayer Ceramic Capacitor, 2200 pF, 50 V RoHS Compliant: Yes

KYOCERA AVX

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2200pF - 300mA 1206 [3216 Metric] Surface Mount -20%, +50% -55°C 125°C 0.6ohm 1Gohm X7R W3F
YFF31HC2A104MT000N
YFF31HC2A104MT000N - Feedthrough Capacitor, 0.1 µF, 100 V, 10 A, 1206 [3216 Metric], Surface Mount, ± 20%

69AH3877

Feedthrough Capacitor, 0.1 µF, 100 V, 10 A, 1206 [3216 Metric], Surface Mount, ± 20%

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0.1µF 100V 10A 1206 [3216 Metric] Surface Mount ± 20% -55°C 125°C 0.0015ohm - - YFF-HC Series
DSS1NB32A103Q55B
DSS1NB32A103Q55B - CAPACITOR, 0.01UF, 6A, 100V, TH ROHS COMPLIANT: YES

67AJ1303

CAPACITOR, 0.01UF, 6A, 100V, TH ROHS COMPLIANT: YES

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10000pF 100V 6A Radial Through Hole ± 10% -40°C 85°C - 1Gohm - EMIFIL DSS1
NFM21CC102R1H3D
NFM21CC102R1H3D - FILTER, SUPPRESSION, 0805, 1NF, 50V

84R0165

FILTER, SUPPRESSION, 0805, 1NF, 50V

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1000pF 50V 1A 0805 [2012 Metric] Surface Mount ± 20% -55°C 125°C 0.3ohm 1Gohm - NFM
DLT/10000/ROHS
DLT/10000/ROHS - Multilayer Ceramic Capacitor, DLT Series, 0.01 - F, 100 V RoHS Compliant: Yes

96M8072

Multilayer Ceramic Capacitor, DLT Series, 0.01 - F, 100 V RoHS Compliant: Yes

OXLEY

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10000pF - - - - - -40°C 85°C - - - DLT
4600-000LF
4600-000LF - Feedthrough Capacitor, Chassis, 1.4 µF, 100 V, 15 A, Screw Mount

25M4021

Feedthrough Capacitor, Chassis, 1.4 µF, 100 V, 15 A, Screw Mount

TUSONIX

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1.4µF - 15A - Screw Mount - -55°C 125°C - 10Gohm X7W -
NFM18PS105R0J3D
NFM18PS105R0J3D - Feedthrough Capacitor, Three Terminal, 1 µF, 6.3 V, 2 A, 0603 [1608 Metric], Surface Mount, ± 20%

49P5421

Feedthrough Capacitor, Three Terminal, 1 µF, 6.3 V, 2 A, 0603 [1608 Metric], Surface Mount, ± 20%

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1µF - - 0603 [1608 Metric] Surface Mount ± 20% -55°C 105°C 0.03ohm 0.5Gohm - NFM Series
NFM18CC222R1C3D
NFM18CC222R1C3D - FILTER, POWER LINE, EMI, 700MA

31Y3212

FILTER, POWER LINE, EMI, 700MA

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2200pF 16V 700mA 0603 [1608 Metric] Surface Mount ± 20% -55°C 125°C 0.3ohm 1Gohm - NFM
W2H15C4738AT1A
W2H15C4738AT1A - Multilayer Ceramic Capacitor, W2H Series, 0.047 - F, +50%, -20%, X7R, 50 V, 0805 [2012 Metric] RoHS Compliant: Yes

13M5683

Multilayer Ceramic Capacitor, W2H Series, 0.047 - F, +50%, -20%, X7R, 50 V, 0805 [2012 Metric] RoHS Compliant: Yes

KYOCERA AVX

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47000pF - 2A 0805 [2012 Metric] Surface Mount -20%, +50% -55°C 125°C 0.15ohm 1Gohm X7R W2H
W3F15C2238AT1A
W3F15C2238AT1A - Multilayer Ceramic Capacitor, 0.022 F, 50 V RoHS Compliant: Yes

01M9473

Multilayer Ceramic Capacitor, 0.022 F, 50 V RoHS Compliant: Yes

KYOCERA AVX

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22000pF - 300mA 1206 [3216 Metric] Surface Mount -20%, +50% -55°C 125°C 0.6ohm 1Gohm X7R W3F
YFF21AC1H470MT0Y0N
YFF21AC1H470MT0Y0N - FEEDTHROUGH CAPACITOR, 47PF, 50V, 0805 ROHS COMPLIANT: YES

71AH6870

FEEDTHROUGH CAPACITOR, 47PF, 50V, 0805 ROHS COMPLIANT: YES

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47pF - 1A 0805 [2012 Metric] Surface Mount ± 20% -55°C 125°C 0.3ohm - - YFF-AC
YFF21AC1E104MT0Y0N
YFF21AC1E104MT0Y0N - FEEDTHROUGH CAPACITOR, 0.1UF, 25V, 0805 ROHS COMPLIANT: YES

71AH6862

FEEDTHROUGH CAPACITOR, 0.1UF, 25V, 0805 ROHS COMPLIANT: YES

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0.1µF - 1A 0805 [2012 Metric] Surface Mount ± 20% -55°C 125°C 0.08ohm - - YFF-AC