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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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 12 605,10(exc. VAT) R 42,017/unit Quantity		100μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	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 13 621,50(exc. VAT) R 45,405/unit Quantity		1mH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	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 366,87(exc. VAT) R 73,374/unit Quantity		4.7mH	Common Mode Choke	200mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	5.8mm	4.3mm	7.6mm	840mΩ	ISO 14001:2015, ISO 9001:2015, REACH, RoHS	Solder Pad	-
Last RS stock RS PRO 2 mH 10 A Common Mode Choke 7 mΩ 250V RS stock no. 123-4268 Subtotal (1 unit) R 430,13(exc. VAT) R 430,13/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 1 mH 500 mA Common Mode Choke 250 mΩ RS stock no. 104-8400 Subtotal (1 pack of 5 units) R 375,32(exc. VAT) R 75,064/unit Quantity		1mH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	5.8mm	4.3mm	7.6mm	250mΩ	RoHS, ISO 14001:2015, ISO 9001:2015, REACH	Solder Pad	-
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 658,13(exc. VAT) R 131,626/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 100 μH 500 mA Common Mode Choke 260 mΩ RS stock no. 104-8399P Subtotal 5 units (supplied on a continuous strip) R 348,71(exc. VAT) R 69,742/unit Quantity		100μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	5.8mm	4.3mm	7.6mm	260mΩ	ISO 9001:2015, REACH, RoHS, ISO 14001:2015	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	-	-	-	-	-	5.8mm	4.3mm	7.6mm	180mΩ	RoHS, ISO 14001:2015, ISO 9001:2015, 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	-	-	-	-	-	5.8mm	4.3mm	7.6mm	130mΩ	RoHS, ISO 9001:2015, ISO 14001:2015, 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 805,40(exc. VAT) R 161,08/unit Quantity		700μH	Common Mode Choke	4A	-	-	-	-	10kHz	-	-	-	-	-	-	-	No	250V	Through Hole	-	-	-30 to 50 %	-	-	17mm	12.5mm	17.5mm	27mΩ	RoHS, REACH	Solder	-
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 375,32(exc. VAT) R 75,064/unit Quantity		1mH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	5.8mm	4.3mm	7.6mm	250mΩ	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. 104-8399 Subtotal (1 pack of 5 units) R 348,71(exc. VAT) R 69,742/unit Quantity		100μH	Common Mode Choke	500mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	5.8mm	4.3mm	7.6mm	260mΩ	ISO 9001:2015, REACH, RoHS, ISO 14001:2015	Solder Pad	-
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 460,24(exc. VAT) R 92,048/unit Quantity		4.7mH	Common Mode Choke	200mA	CMJ	-	-	-	-	-	-	-	70°C	0°C	-	2	No	-	Surface	-	-	-	-	-	5.8mm	4.3mm	7.6mm	860mΩ	RoHS, REACH, ISO 9001:2015, 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	-	-	-	-	-	5.8mm	4.3mm	7.6mm	450mΩ	ISO 14001:2015, ISO 9001:2015, RoHS, REACH	Solder Pad	-
Unavailable KEMET 1 mH 5 A Common mode filter 50mΩ RS stock no. 863-3793 Mfr. Part No. SC-05-100 Subtotal (1 bag of 5 units) R 87,72(exc. VAT) R 17,544/unit Quantity	KEMET	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Unavailable TDK 22 μH 200 mA Common Mode Choke 1Ω RS stock no. 165-3151 Mfr. Part No. ACT45B-220-2P-TL Subtotal (1 reel of 2500 units) R 33 007,50(exc. VAT) R 13,203/unit Quantity	TDK	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Unavailable Common Mode Choke WE-CMBNC 5mH 21A RS stock no. 816-4865P Mfr. Part No. 7448062105 Subtotal 1 unit (supplied in a box) R 264,88(exc. VAT) R 264,88/unit Quantity	Wurth Elektronik	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Being discontinued Wurth Elektronik 100 mH Common Mode Choke RS stock no. 899-6974 Mfr. Part No. 744866104 Subtotal (1 unit) R 59,85(exc. VAT) R 59,85/unit Quantity	Wurth Elektronik	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Unavailable TDK 2.6 A Common mode filter 0.05Ω 50V RS stock no. 165-3131 Mfr. Part No. ACM4520-231-2P-T000 Subtotal (1 reel of 800 units) R 7 046,40(exc. VAT) R 8,808/unit Quantity	TDK	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Currently unavailable KEMET 2.6 mH 35 A Common Mode Choke 0.0147 Ω 1000V RS stock no. 238-5429 Mfr. Part No. SCT25XV-080-1R2A018JH Subtotal (1 tray of 30 units) R 4 433,07(exc. VAT) R 147,769/unit Quantity	KEMET	2.6mH	Common Mode Choke	35A	SCT-XV	Ferrite	-	Tray	100kHz	-	-	-	120°C	-40°C	-	-	AEC-Q200	1000V	-	-	-	±35 %	-	-	-	-	-	0.0147Ω	RoHS, UL 94 V-0	-	-