Common Mode Chokes

Common mode (CM) chokes are a type of electrical filter that reduces unwanted interference, by blocking high frequency noise but lets the desired signal to pass. Common mode noise current is usually found in sources such as unwanted radio signals, unshielded electronics, inverters and motors. If this noise is not filtered, then it can cause problems in your electronics and electrical circuits.

RS have a great range of inductors including these common mode chokes with various inductance values and offer high attenuation over a wide frequency range.

Why use common mode chokes?

Common mode chokes can be used to help the prevention of electromagnetic interference and radio frequency interface. By using these chokes you can help stop your electronic devices from malfunctioning.

Things to consider before purchasing a common mode choke:

Impedance
Frequency bandwidth
Current handling

Typical Applications include:

Common mode chokes are often used in electrical, industrial and telecommunication applications to help reduce or remove noise and electromagnetic interference. They can be found in:

Data storage systems
Digital video camera
Industrial systems
Professional audio

1410 Products showing for Common Mode Chokes

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Bourns 2 x 1.8 mH 13 Common Mode Choke 0.008Ω RS Stock No.: 285-0515 Mfr. Part No.: 047701 Datasheets: $7.659 Each (In a Tray of 48)	Bourns	2 x 1.8 mH	04770	-	-	0.008Ω	13	-	-	-	-	-	-	-	-
KEMET 174 μH 20 A Common Mode Choke 11.8mΩ RS Stock No.: 183-6603 Mfr. Part No.: PHBC24W-2R4A0174V Datasheets: $88.846 Each (In a Tray of 9)	KEMET	174 μH	PHBC	-	100 kHz	11.8mΩ	20 A	57.6 (Dia.) x 30.9mm	-40°C → +125°C	2	-	Through Hole	-	Solder Pad	-
TDK-Lambda 6 A Common mode filter 110mΩ 250V RS Stock No.: 181-3298 Mfr. Part No.: RSEV-2006 Datasheets: $39.81 Each	TDK-Lambda	-	RSEV	-	60 Hz	110mΩ	6 A	85 x 39 x 30mm	-25°C → +85°C	-	-	DIN Rail	250V	Screw	-
KEMET 1.3 mH 3 A Common Mode Choke 0.06Ω 250V RS Stock No.: 186-1164 Mfr. Part No.: SSHB21HS-30013 Datasheets: $5.374 Each (In a Pack of 5)	KEMET	1.3 mH	SSHB21HS	-	10 kHz	0.06Ω	3 A	26 x 23 x 15.5mm	-25°C → +130°C	-	-	Through Hole	250V	Solder Pad	-
Abracon 200 μH Common Mode Choke RS Stock No.: 245-0462P Mfr. Part No.: ACMS-Q3225E-201-T Datasheets: $4.266 Each (Supplied on a Reel)	Abracon	200 μH	ACMS	-	100 KHz	-	-	-	-	-	-	-	-	-	-
KEMET 3 mH 2 A Common Mode Choke 85mΩ RS Stock No.: 169-6906 Mfr. Part No.: SC-02-30G Datasheets: $3.016 Each (In a Box of 1300)	KEMET	3 mH	SC-G	-	100 KHz	85mΩ	2 A	17.5 x 14 x 17.5mm	-25°C → +105°C	-	-	Through Hole	-	Solder Pad	-
Schurter 6.5 mH 10 A Common Mode Choke 8mΩ 760V RS Stock No.: 188-9521 Mfr. Part No.: 3-108-433 Datasheets: $53.849 Each (In a Box of 20)	Schurter	6.5 mH	DKIH-4	-	3.2 MHz	8mΩ	10 A	58 (Dia.) x 31mm	-40°C → +100°C	-	-	Flange Mount	760V	Through Hole	-
Wurth Elektronik 2 x 2.2 mH 2 A Common Mode Choke 2 x 0.1Ω RS Stock No.: 904-0366P Mfr. Part No.: 7446622002 Datasheets: $8.35 Each (Supplied in a Bag)	Wurth Elektronik	2 x 2.2 mH	WE-LF	100 mΩ	10 KHz	2 x 0.1Ω	2 A	18 (Dia.) x 13mm	-40°C → +125°C	-	-	Through Hole	-	-	-
Bourns 2 x 2.7 mH 11 Common Mode Choke 0.0104Ω RS Stock No.: 285-0519 Mfr. Part No.: 047703 Datasheets: $7.819 Each (In a Tray of 48)	Bourns	2 x 2.7 mH	04770	-	-	0.0104Ω	11	-	-	-	-	-	-	-	-
Murata Common Mode Choke 0.056Ω RS Stock No.: 223-5060 Mfr. Part No.: DLW5ATH501TQ2L Datasheets: $2.902 Each (On a Reel of 700)	Murata	-	DLW5ATH	500 Ω	100 MHz	0.056Ω	-	-	-	2	-	-	-	-	-
KEMET 174 μH 20 A Common Mode Choke 11.8mΩ RS Stock No.: 183-6630 Mfr. Part No.: SHBC24W-2R4A0174V Datasheets: $26.078 Each (In a Tray of 9)	KEMET	174 μH	SHBC	-	100 kHz	11.8mΩ	20 A	57.6 (Dia.) x 30.9mm	-40°C → +125°C	2	-	Through Hole	-	Solder Pad	-
EPCOS 47 mH 100 mA Common Mode Choke 3.7Ω 42 V ac, 80 V dc RS Stock No.: 185-7607P Mfr. Part No.: B82793C0476N265 Datasheets: $3.772 Each (Supplied on a Reel)	EPCOS	47 mH	B82793C0	24 kΩ	50/60 Hz	3.7Ω	100 mA	7.1 x 6 x 4.8mm	-40°C → +125°C	1	AEC-Q200	Surface Mount	42 V ac, 80 V dc	Solder Pad	-
Bourns 7 μH Common Mode Choke RS Stock No.: 237-1699P Mfr. Part No.: SRF7035A-701Y Datasheets: $2.84 Each (Supplied on a Reel)	Bourns	7 μH	SRF7035A	700 Ω	100 MHz	-	-	-	-	-	-	-	-	-	-
TDK 730 nH 220 mA Common mode filter 500mΩ 50V RS Stock No.: 916-4128P Mfr. Part No.: ACM2012-361-2P-T002 Datasheets: $0.529 Each (Supplied on a Reel)	TDK	730 nH	ACM	360 Ω	100 MHz	500mΩ	220 mA	2 x 1.2 x 1.3mm	-40°C → +85°C	2	-	Surface Mount	50V	Surface Mount	2012
Wurth Elektronik 2 x 700 μH 21.5 A Common Mode Choke 2 x 3.8mΩ RS Stock No.: 126-0968 Mfr. Part No.: 744830007215 Datasheets: $23.51 Each	Wurth Elektronik	2 x 700 μH	WE-CMBHV	-	10 KHz	2 x 3.8mΩ	21.5 A	42.5 x 23 x 39.5mm	-40°C → +125°C	-	-	Through Hole	-	Solder Pad	-
KEMET 91 mH 400 mA Common Mode Choke 2.8Ω RS Stock No.: 183-6491 Mfr. Part No.: SSR10V-04910 Datasheets: $2.328 Each (In a Tray of 100)	KEMET	91 mH	SSR10V	-	10 kHz	2.8Ω	400 mA	23.5 x 13 x 21mm	-25°C → +120°C	2	-	Through Hole	-	Solder Pad	-
Murata Common Mode Choke 4Ω RS Stock No.: 223-5026 Mfr. Part No.: DLM0NSN900HY2D Datasheets: $0.067 Each (On a Reel of 10000)	Murata	-	DLM0NS	90 Ω	100 MHz	4Ω	-	-	-	2	-	-	-	-	-
KEMET 152 μH 12 A Common Mode Choke 20.4mΩ RS Stock No.: 183-6817 Mfr. Part No.: HHBC20-1R7A0152V Datasheets: $17.91 Each	KEMET	152 μH	HHBC	-	100 kHz	20.4mΩ	12 A	41.2 (Dia.) x 20.4mm	-40°C → +125°C	2	-	Through Hole	-	Solder Pad	-
Schurter 450000 μH Common Mode Choke 1.7mΩ RS Stock No.: 232-2842 Mfr. Part No.: 3-127-614 Datasheets: $535.25 1 Box of 20	Schurter	450000 μH	DKIV-1	-	0.5 MHz	1.7mΩ	-	-	-	2	-	-	-	-	-
KEMET 10 μH 20 A Common Mode Choke 8mΩ RS Stock No.: 169-6884 Mfr. Part No.: SC-20-D010 Datasheets: $6.984 Each (In a Box of 200)	KEMET	10 μH	SC-D	-	100 KHz	8mΩ	20 A	34 x 23 x 34mm	-25°C → +105°C	-	-	Through Hole	-	Solder Pad	-