MPN

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

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Last RS stock RS PRO 2 mH 10 A Common Mode Choke 7 mΩ 250V RS stock no. 123-4268 Subtotal (1 unit) R 427,24(exc. VAT) R 427,24/unit Quantity		2mH	Common Mode Choke	10A	-	-	-	-	10kHz	-	-	-	-	-	-	-	No	250V	Through Hole	-	-	±30 %	-	-	18.5mm	33mm	27.5mm	7mΩ	REACH, RoHS	Solder	-
Last RS stock RS PRO 2 mH 2 A Common Mode Choke 45 mΩ 250V RS stock no. 123-4270 Subtotal (1 pack of 5 units) R 654,34(exc. VAT) R 130,868/unit Quantity		2mH	Common Mode Choke	2A	-	-	-	-	10kHz	-	-	-	-	-	-	-	No	250V	Through Hole	-	-	±30 %	-	-	7.5mm	18mm	15mm	45mΩ	RoHS, REACH	Solder	-
Last RS stock RS PRO 4.7 mH 200 mA Common Mode Choke 860 mΩ RS stock no. 104-8408 Subtotal (1 pack of 5 units) R 457,56(exc. VAT) R 91,512/unit Quantity		4.7mH	Common Mode Choke	200mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	860mΩ	RoHS, REACH, ISO 9001:2015, ISO 14001:2015	Solder Pad	-
Last RS stock RS PRO 100 μH 500 mA Common Mode Choke 260 mΩ RS stock no. 104-8399 Subtotal (1 pack of 5 units) R 346,70(exc. VAT) R 69,34/unit Quantity		100μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	260mΩ	ISO 9001:2015, REACH, RoHS, ISO 14001:2015	Solder Pad	-
Currently unavailable RS PRO 2.2 mH 400 mA Common Mode Choke 450 mΩ RS stock no. 104-8402 Subtotal (1 pack of 5 units) R 353,65(exc. VAT) R 70,73/unit Quantity		2.2mH	Common Mode Choke	400mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	450mΩ	ISO 14001:2015, ISO 9001:2015, RoHS, REACH	Solder Pad	-
Currently unavailable RS PRO 47 μH 500 mA Common Mode Choke 130 mΩ RS stock no. 104-8403 Subtotal (1 pack of 5 units) R 344,83(exc. VAT) R 68,966/unit Quantity		47μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	130mΩ	RoHS, ISO 9001:2015, ISO 14001:2015, REACH	Solder Pad	-
Last RS stock RS PRO 1 mH 500 mA Common Mode Choke 250 mΩ RS stock no. 104-8400 Subtotal (1 pack of 5 units) R 373,16(exc. VAT) R 74,632/unit Quantity		1mH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	250mΩ	RoHS, ISO 14001:2015, ISO 9001:2015, REACH	Solder Pad	-
Last RS stock RS PRO 4.7 mH 200 mA Common Mode Choke 840 mΩ RS stock no. 104-8404 Subtotal (1 pack of 5 units) R 364,71(exc. VAT) R 72,942/unit Quantity		4.7mH	Common Mode Choke	200mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	840mΩ	ISO 14001:2015, ISO 9001:2015, REACH, RoHS	Solder Pad	-
Currently unavailable RS PRO 47 μH 500 mA Common Mode Choke 180 mΩ RS stock no. 104-8407 Subtotal (1 pack of 5 units) R 456,21(exc. VAT) R 91,242/unit Quantity		47μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	180mΩ	RoHS, ISO 14001:2015, ISO 9001:2015, REACH	Solder Pad	-
Last RS stock RS PRO 100 μH 500 mA Common Mode Choke 260 mΩ RS stock no. 104-8399P Subtotal 5 units (supplied on a continuous strip) R 346,70(exc. VAT) R 69,34/unit Quantity		100μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	260mΩ	ISO 9001:2015, REACH, RoHS, ISO 14001:2015	Solder Pad	-
Last RS stock RS PRO 1 mH 500 mA Common Mode Choke 250 mΩ RS stock no. 104-8400P Subtotal 5 units (supplied on a continuous strip) R 373,16(exc. VAT) R 74,632/unit Quantity		1mH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	250mΩ	RoHS, ISO 14001:2015, ISO 9001:2015, REACH	Solder Pad	-
Currently unavailable RS PRO 100 μH 500 mA Common Mode Choke 260 mΩ RS stock no. 173-0176 Subtotal (1 box of 300 units) R 12 529,20(exc. VAT) R 41,764/unit Quantity		100μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	260mΩ	ISO 9001:2015, REACH, RoHS, ISO 14001:2015	Solder Pad	-
Currently unavailable RS PRO 1 mH 500 mA Common Mode Choke 250 mΩ RS stock no. 173-0177 Subtotal (1 box of 300 units) R 13 539,90(exc. VAT) R 45,133/unit Quantity		1mH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface Mount	-	-	-	-	-	5.8mm	4.3mm	7.6mm	250mΩ	RoHS, ISO 14001:2015, ISO 9001:2015, REACH	Solder Pad	-
Temporarily out of stock RS PRO 700 μH 4 A Common Mode Choke 27 mΩ 250V RS stock no. 123-4267 Subtotal (1 pack of 5 units) R 800,17(exc. VAT) R 160,034/unit Quantity		700μH	Common Mode Choke	4A	-	-	-	-	10kHz	-	-	-	-	-	-	-	No	250V	Through Hole	-	-	-30 to 50 %	-	-	17mm	12.5mm	17.5mm	27mΩ	RoHS, REACH	Solder	-
In Stock TDK 600 nH 5 A Common Mode Filter 10 mΩ 80V RS stock no. 916-4147 Mfr. Part No. ACM7060-301-2PL-TL01 Subtotal (1 pack of 5 units) R 145,67(exc. VAT) R 29,134/unit Quantity	TDK	600nH	Common Mode Filter	5A	ACM	-	300Ω	Tape & Reel	100MHz	-	-	-	85°C	-40°C	-	2	No	80V	Surface	-	-	-	-	-	6mm	3.5mm	7mm	10mΩ	REACH, RoHS	Surface Mount	7060
In Stock KEMET 4 mH 35 A Common Mode Choke 0.0147 Ω 1000V RS stock no. 238-5424 Mfr. Part No. SCR25XV-080-1R2A018JH Subtotal (1 unit) R 156,22(exc. VAT) R 156,22/unit Quantity	KEMET	4mH	Common Mode Choke	35A	SCR-XV	7Ht Ferrite Material	-	Tray	100kHz	-	-	-	150°C	40°C	-	-	AEC-Q200	1000V	-	-	-	±30 %	-	-	-	-	-	0.0147Ω	UL 94 V-0, RoHS	-	-
In Stock TDK 51 μH 140 A Common Mode Choke 500 mΩ 42V RS stock no. 246-9874 Mfr. Part No. B82790C0513N201 Subtotal (1 unit) R 44,75(exc. VAT) R 44,75/unit Quantity	TDK	51μH	Common Mode Choke	140A	B82790C0/S0	Ferrite	0.14Ω	Tape & Reel	60Hz	-	-	-	60°C	-	-	-	AEC-Q200	42V	Surface	-	4	±30 %	-	-	6mm	4.9mm	7.1mm	500mΩ	RoHS	-	-
Currently unavailable KEMET 10 mH 200 mA Common Mode Choke 4 Ω 250V ac RS stock no. 863-3835 Mfr. Part No. SU9VF-02100 Subtotal (1 bag of 10 units) R 109,19(exc. VAT) R 10,919/unit Quantity	KEMET	10mH	Common Mode Choke	200mA	SU-9VF	-	-	Tray	1kHz	-	-	-	80°C	-25°C	-	-	No	250V ac	Through Hole	-	-	-	-	-	11mm	17mm	17mm	4Ω	RoHS	Solder Pad	-
In Stock Wurth Elektronik 51 μH 400 mA Common Mode Filter 0.32 Ω 80V RS stock no. 669-4181 Mfr. Part No. 744242510 Subtotal (1 unit) R 54,38(exc. VAT) R 54,38/unit Quantity	Wurth Elektronik	51μH	Common Mode Filter	400mA	WE-SLM	Ferrite	2500Ω	Tape & Reel	100kHz	-	-	-	125°C	-40°C	-	-	No	80V	Surface	-	-	-30 to 50 %	100kHz	-	3.3mm	3.3mm	6mm	0.32Ω	REACH, RoHS	Surface Mount	-
In Stock Bourns 470 μH 0.5 A Common Mode Choke 0.28 Ω 42V ac/dc, 80 V ac/dc RS stock no. 874-9740 Mfr. Part No. DR331-474BE Subtotal (1 bag of 5 units) R 97,93(exc. VAT) R 19,586/unit Quantity	Bourns	470μH	Common Mode Choke	0.5A	DR331	Ferrite	-	-	100kHz	-	-	-	135°C	-40°C	-	-	No	42, 80V ac/dc	Axial	-	-	±25 %	-	-	5.4mm	4.7mm	7.3mm	0.28Ω	EC, EU, 95, RoHS Recast 2011, RoHS Directive 2002	Solder Pad	-