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

1423 Products showing for Common Mode Chokes

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Murata 150 mA Common Mode Choke 1.5Ω RS Stock No.: 724-1652 Mfr. Part No.: DLP11SN900HL2L Datasheets: $0.385 Each (In a Pack of 10)	Murata	-	DLP11S	90 Ω	100 MHz	1.5Ω	150 mA	1.25 x 1 x 0.82mm	-40 → +85 °C	-	-	Surface Mount	-	Solder Pad	0504
Murata Common Mode Choke 0.056Ω RS Stock No.: 223-5045 Mfr. Part No.: DLW5ATH112MQ2L Datasheets: $3.188 Each (On a Tape of 5)	Murata	-	DLW5ATH	1100 Ω	100 MHz	0.056Ω	-	-	-	2	-	-	-	-	-
KEMET 47.5 mH 600 mA Common Mode Choke 1.3Ω RS Stock No.: 183-6468 Mfr. Part No.: SSR10H-06475 Datasheets: $1.818 Each (In a Tray of 60)	KEMET	47.5 mH	SSR10H	-	10 kHz	1.3Ω	600 mA	22 x 18 x 13.5mm	-25°C → +120°C	2	-	Through Hole	-	Solder Pad	-
Wurth Elektronik 2 x 51 μH 1 A Common mode filter 2 x 0.16Ω 80V RS Stock No.: 144-9782 Mfr. Part No.: 744227 Datasheets: $3.463 Each (On a Reel of 1000)	Wurth Elektronik	2 x 51 μH	WE-SL2	-	1 KHz	2 x 0.16Ω	1 A	9.2 x 6 x 5mm	-40°C → +125°C	-	-	Surface Mount	80V	Surface Mount	-
Wurth Elektronik 150 μH 5.4 A Common Mode Choke RS Stock No.: 296-211 Mfr. Part No.: 7447055 Datasheets: $2.80 Each (In a Bag of 5)	Wurth Elektronik	150 μH	WE-FI	-	-	-	5.4 A	-	-	-	-	-	-	-	-
Wurth Elektronik 2 μH 5 A Common Mode Choke RS Stock No.: 296-257 Mfr. Part No.: 744710205 Datasheets: $3.378 Each (In a Bag of 5)	Wurth Elektronik	2 μH	WE-SD	-	-	-	5 A	-	-	-	-	-	-	-	-
KEMET 104 μH 20 A Common Mode Choke 10.4mΩ RS Stock No.: 183-6602 Mfr. Part No.: PHBC24N-2R3A0104V Datasheets: $37.219 Each (In a Tray of 12)	KEMET	104 μH	PHBC	-	100 kHz	10.4mΩ	20 A	49.5 (Dia.) x 25.8mm	-40°C → +125°C	2	-	Through Hole	-	Solder Pad	-
Wurth Elektronik 2 μH 2.5 A Common Mode Choke RS Stock No.: 296-238 Mfr. Part No.: 744710203 Datasheets: $3.216 Each (In a Bag of 5)	Wurth Elektronik	2 μH	WE-SD	-	-	-	2.5 A	-	-	-	-	-	-	-	-
TRACOPOWER Common Mode Choke RS Stock No.: 745-1180 Mfr. Part No.: TCK-047 Datasheets: $5.21 Each	TRACOPOWER	-	-	-	-	-	-	-	-	-	-	-	-	-	-
KEMET 47 mH 1.6 A Common Mode Choke 0.327Ω RS Stock No.: 183-6698 Mfr. Part No.: SSRH24NV-16470 Datasheets: $4.31 Each	KEMET	47 mH	SSRH	-	10 kHz	0.327Ω	1.6 A	25.5 x 20 x 31mm	-25°C → +120°C	2	-	Through Hole	-	Solder Pad	-
Schurter 900000 μH Common Mode Choke 5.7mΩ RS Stock No.: 232-2832 Mfr. Part No.: 3-127-598 Datasheets: $774.64 1 Box of 40	Schurter	900000 μH	DKIV-1	-	0.91 MHz	5.7mΩ	-	-	-	2	-	-	-	-	-
TDK 6 A Common mode filter 14mΩ 80V RS Stock No.: 605-9200 Mfr. Part No.: ACM1211-102-2PL Datasheets: $3.26 Each	TDK	-	ACM	1000 Ω	100 MHz	14mΩ	6 A	12 x 11 x 6mm	-40°C → +85°C	2	-	Surface Mount	80V	Surface Mount	1211
KEMET 13 mH 2 A Common Mode Choke 115mΩ RS Stock No.: 863-3768P Mfr. Part No.: SCF-02-1300 Datasheets: $11.476 Each (Supplied in a Bag)	KEMET	13 mH	SC	-	10 KHz	115mΩ	2 A	15 x 12 x 15mm	-25°C → +120°C	-	-	Through Hole	-	Solder Pad	-
Wurth Elektronik 131 nH Common mode filter RS Stock No.: 248-8161P Mfr. Part No.: 784231091 Datasheets: $1.548 Each (Supplied on a Reel)	Wurth Elektronik	131 nH	WE-CNSA	90 Ω	-	-	-	-	-	-	-	-	-	-	-
KEMET 13 mH 2 A Common Mode Choke 115mΩ RS Stock No.: 863-3768 Mfr. Part No.: SCF-02-1300 Datasheets: $11.786 Each (In a Bag of 5)	KEMET	13 mH	SC	-	10 KHz	115mΩ	2 A	15 x 12 x 15mm	-25°C → +120°C	-	-	Through Hole	-	Solder Pad	-
TDK 1.4 μH 5 A Common mode filter 10mΩ 80V RS Stock No.: 916-4144P Mfr. Part No.: ACM9070-701-2PL-TL01 Datasheets: $3.08 Each (Supplied on a Reel)	TDK	1.4 μH	ACM	700 Ω	100 MHz	10mΩ	5 A	9 x 7 x 4.5mm	-40°C → +85°C	2	-	Surface Mount	80V	Surface Mount	9070
KEMET 5.6 mH 2.5 A Common Mode Choke 100mΩ 250V RS Stock No.: 186-0839 Mfr. Part No.: SSHB21H-R25056 Datasheets: $2.916 Each (In a Box of 60)	KEMET	5.6 mH	SSHB-21H	-	10 kHz	100mΩ	2.5 A	26 x 23 x 15.5mm	-25°C → +120°C	-	-	Through Hole	250V	Solder Pad	-
Schurter 500000 μH Common Mode Choke 2.7mΩ RS Stock No.: 232-2836 Mfr. Part No.: 3-127-599 Datasheets: $23.79 Each	Schurter	500000 μH	DKIV-1	-	1.26 MHz	2.7mΩ	-	-	-	2	-	-	-	-	-
Schurter 4 mH 12 A Common Mode Choke 4.33mΩ 760V RS Stock No.: 188-9522 Mfr. Part No.: 3-108-434 Datasheets: $63.962 Each (In a Box of 20)	Schurter	4 mH	DKIH-4	-	4.8 MHz	4.33mΩ	12 A	58 (Dia.) x 31mm	-40°C → +100°C	-	-	Flange Mount	760V	Through Hole	-
Murata 2 A Common Mode Choke 34mΩ RS Stock No.: 122-5342 Mfr. Part No.: DLW5BTM102SQ2L Datasheets: $2.241 Each (On a Reel of 700)	Murata	-	DLW5BT	1000 Ω	100 MHz	34mΩ	2 A	5 x 5 x 2.35mm	-40°C → +85°C	-	-	Surface Mount	-	Solder Pad	2020