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

1490 Products showing for Common Mode Chokes

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Wurth Elektronik 367 nH Common mode filter RS Stock No. 248-8168 Mfr. Part No. 784231261 Each (On a Tape of 5) Kr. 9,862 Quantity	Wurth Elektronik	367 nH	WE-CNSA	260 Ω	-	-	-	-	-	-	-	-	-	-	-
KEMET 50 mH 0.5 A Common Mode Choke 1.70Ω 250V RS Stock No. 186-1052 Mfr. Part No. SSHB10H-R05500 Each (In a Pack of 5) Kr. 21,086 Quantity	KEMET	50 mH	SSHB10H	-	10 kHz	1.70Ω	0.5 A	22 x 17 x 15.5mm	-25°C → +120°C	-	-	Through Hole	250V	Solder Pad	-
Wurth Elektronik 367 nH Common mode filter RS Stock No. 248-8168P Mfr. Part No. 784231261 Each (Supplied on a Reel) Kr. 9,862 Quantity	Wurth Elektronik	367 nH	WE-CNSA	260 Ω	-	-	-	-	-	-	-	-	-	-	-
Wurth Elektronik 350 μH Common Mode Choke RS Stock No. 245-8538 Mfr. Part No. 7448226404 Each (In a Box of 90) Kr. 56,519 Quantity	Wurth Elektronik	350 μH	WE-CMBHC	-	50 Hz	-	-	-	-	-	-	-	-	-	-
TDK 1.5 μH 4 A Common mode filter 15mΩ 80V RS Stock No. 916-4140 Mfr. Part No. ACM7060-701-2PL-TL01 Each (In a Pack of 5) Kr. 17,132 Quantity	TDK	1.5 μH	ACM	700 Ω	100 MHz	15mΩ	4 A	7 x 6 x 3.5mm	-40°C → +85°C	2	-	Surface Mount	80V	Surface Mount	7060
Wurth Elektronik 252 nH Common mode filter RS Stock No. 248-8164 Mfr. Part No. 784231181 Each (On a Reel of 2000) Kr. 5,958 Quantity	Wurth Elektronik	252 nH	WE-CNSA	180 Ω	-	-	-	-	-	-	-	-	-	-	-
Wurth Elektronik 478 nH Common mode filter RS Stock No. 248-8170P Mfr. Part No. 784231371 Each (Supplied on a Reel) Kr. 9,862 Quantity	Wurth Elektronik	478 nH	WE-CNSA	370 Ω	-	-	-	-	-	-	-	-	-	-	-
Bourns 100 μH 300 mA Common Mode Choke 0.22Ω RS Stock No. 811-8720 Mfr. Part No. SRF0602-101Y Each (In a Bag of 5) Kr. 22,788 Quantity	Bourns	100 μH	SRF0602	260 Ω	3 → 660 MHz	0.22Ω	300 mA	6.5 x 3.6 x 1.65mm	-40°C → +105°C	-	-	Surface Mount	-	Surface Mount	0602
Wurth Elektronik 2 x 2 mH 600 mA Common mode filter 2 x 0.42Ω 80V RS Stock No. 124-1876P Mfr. Part No. 744221 Each (Supplied on a Reel) Kr. 27,064 Quantity	Wurth Elektronik	2 x 2 mH	WE-SL2	-	1 KHz	2 x 0.42Ω	600 mA	9.2 x 6 x 5mm	-40°C → +125°C	-	-	Surface Mount	80V	Surface Mount	-
Murata Common Mode Choke 0.056Ω RS Stock No. 223-5061P Mfr. Part No. DLW5ATH501TQ2L Each (Supplied on a Reel) Kr. 15,898 Quantity	Murata	-	DLW5ATH	500 Ω	100 MHz	0.056Ω	-	-	-	2	-	-	-	-	-
Wurth Elektronik 245 pH Common Mode Choke 2.5Ω RS Stock No. 217-7630 Mfr. Part No. 748020024 Each (On a Reel of 2000) Kr. 4,956 Quantity	Wurth Elektronik	245 pH	WE-MK	2 Ω	100 MHz	2.5Ω	-	-	-	-	-	-	-	-	-
Wurth Elektronik 2 x 1.8 mH 6 A Common Mode Choke 2 x 0.02Ω RS Stock No. 904-0331P Mfr. Part No. 7446326002 Each (Supplied in a Box) Kr. 58,77 Quantity	Wurth Elektronik	2 x 1.8 mH	WE-LF	23 mΩ	10 KHz	2 x 0.02Ω	6 A	26.5 x 18.5 x 30.5mm	-40°C → +125°C	-	-	Through Hole	-	-	-
TRACOPOWER 2.2 μH Common Mode Choke RS Stock No. 249-6696 Mfr. Part No. TCK-059 1 Tape of 10 Kr. 367,43 Quantity	TRACOPOWER	2.2 μH	TCK	25 mΩ	1 kHz	-	-	-	-	-	-	-	-	-	-
Abracon Common Mode Choke RS Stock No. 240-3532P Mfr. Part No. ACM-21-900M-T Each (Supplied on a Reel) Kr. 3,226 Quantity	Abracon	-	ACM	90 Ω	100 MHz	-	-	-	-	-	-	-	-	-	-
Wurth Elektronik 2 x 2.2 mH 2 A Common Mode Choke 2 x 0.1Ω RS Stock No. 163-7903 Mfr. Part No. 7446622002 Each (In a Box of 90) Kr. 37,76 Quantity	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	-	-	-
Wurth Elektronik 4 x 4.7 mH 200 mA Common Mode Choke 0.85Ω 80V RS Stock No. 881-3176P Mfr. Part No. 744201 Each (Supplied on a Reel) Kr. 35,83 Quantity	Wurth Elektronik	4 x 4.7 mH	WE-SL	-	100 KHz	0.85Ω	200 mA	9.65 x 10.5 x 5.75mm	-40°C → +125°C	-	-	Surface Mount	80V	Surface Mount	-
Wurth Elektronik 2 x 1.8 mH 6 A Common Mode Choke 2 x 0.02Ω RS Stock No. 163-7895 Mfr. Part No. 7446326002 Each (In a Box of 66) Kr. 56,19 Quantity	Wurth Elektronik	2 x 1.8 mH	WE-LF	23 mΩ	10 KHz	2 x 0.02Ω	6 A	26.5 x 18.5 x 30.5mm	-40°C → +125°C	-	-	Through Hole	-	-	-
Wurth Elektronik 250 μH Common Mode Choke 1.6Ω RS Stock No. 217-7250 Mfr. Part No. 744235251 Each (On a Reel of 500) Kr. 11,199 Quantity	Wurth Elektronik	250 μH	WE-CNSW SMT	10 kΩ	10 kHz	1.6Ω	-	-	-	-	-	-	-	-	-
Wurth Elektronik 280 mA Common mode filter 0.45mΩ 50V RS Stock No. 500-3026P Mfr. Part No. 744231371 Each (Supplied on a Reel) Kr. 10,00 Quantity	Wurth Elektronik	-	WE-CNSW SMD	370 Ω	100 MHz	0.45mΩ	280 mA	2 x 1.2 x 1.2mm	-40°C → +125°C	-	-	Surface Mount	50V	Surface Mount	0805 (2012M)
Wurth Elektronik 88 nH Common mode filter RS Stock No. 248-8158P Mfr. Part No. 784231061 Each (Supplied on a Reel) Kr. 9,862 Quantity	Wurth Elektronik	88 nH	WE-CNSA	67 Ω	-	-	-	-	-	-	-	-	-	-	-