Common Mode Filters / Chokes – Mouser United Kingdom

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Common Mode Chokes

Eaton Common Mode Chokes feature a closed magnetic path that reduces conductive EMI emissions. These chokes feature robust construction, independent winding sections, and high-voltage isolation. The common mode chokes support inductance ranges from 5.5µH to 60,000µH and current ratings up to 7A, with low DCR for efficient operation. These chokes operate within the -40°C to 125°C (ECMT) and -40°C to 160°C (CMS) temperature ranges and comply with RoHS and halogen-free standards. Typical applications include industrial IoT equipment, power supplies, renewable energy systems, smart meters, medical devices, and consumer electronics.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (GBP) Filter the results in the table by unit price based on your quantity.	Qty.	Mounting Style	Number of Channels	Series	Termination Style	Inductance	Maximum DC Current	Maximum DC Resistance	Self Resonant Frequency	Minimum Operating Temperature	Maximum Operating Temperature	Length	Width	Height	Packaging	Product	Type
Common Mode Chokes / Filters 25uH 5.35A 0.005ohms CMS2-1-R Eaton Electronics 1: £3.06 1,261In Stock	Mfr. Part No. CMS2-1-R Mouser Part No 704-CMS2-1-R	Eaton Electronics	Common Mode Chokes / Filters 25uH 5.35A 0.005ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	1,261In Stock	Cut Tape £3.06 £2.69 £2.53 £2.28 View Reel £2.07 £2.09 £2.07 £2.07 MouseReel Available	Min.: 1 Mult.: 1 : 800	PCB Mount	1 Channel	CMS	SMD/SMT	25 uH	5.35 A	5 mOhms		- 40 C	+ 160 C	11.43 mm	11.43 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 1340uH 0.5A 0.62ohms CMS2-14-R Eaton Electronics 1: £3.02 775In Stock	Mfr. Part No. CMS2-14-R Mouser Part No 704-CMS2-14-R	Eaton Electronics	Common Mode Chokes / Filters 1340uH 0.5A 0.62ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	775In Stock	Cut Tape £3.02 £2.49 £2.30 £2.17 £2.07 Reel £2.07 MouseReel Available	Min.: 1 Mult.: 1 : 800	PCB Mount	1 Channel	CMS	SMD/SMT	1.34 mH	500 mA	620 mOhms		- 40 C	+ 160 C	8.89 mm	8.89 mm	6 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes	Common Mode Inductor
Common Mode Chokes / Filters 40uH 4.4A 0.008ohms CMS2-2-R Eaton Electronics 1: £2.82 699In Stock	Mfr. Part No. CMS2-2-R Mouser Part No 704-CMS2-2-R	Eaton Electronics	Common Mode Chokes / Filters 40uH 4.4A 0.008ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	699In Stock	Cut Tape £2.82 £2.32 £2.15 £2.07 Reel £2.07 MouseReel Available	Min.: 1 Mult.: 1 : 800	PCB Mount	1 Channel	CMS	SMD/SMT	40 uH	4.4 A	8 mOhms		- 40 C	+ 160 C	11.43 mm	11.43 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 518uH 1.45A 0.076ohms CMS3-10-R Eaton Electronics 1: £3.97 641In Stock	Mfr. Part No. CMS3-10-R Mouser Part No 704-CMS3-10-R	Eaton Electronics	Common Mode Chokes / Filters 518uH 1.45A 0.076ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	641In Stock	Cut Tape £3.97 £3.27 £3.05 Reel £3.05 MouseReel Available	Min.: 1 Mult.: 1 : 600	PCB Mount	1 Channel	CMS	SMD/SMT	518 uH	1.45 A	76 mOhms		- 40 C	+ 160 C	13.97 mm	13.97 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 88uH 3.95A 0.01ohms CMS3-4-R Eaton Electronics 1: £4.22 788In Stock	Mfr. Part No. CMS3-4-R Mouser Part No 704-CMS3-4-R	Eaton Electronics	Common Mode Chokes / Filters 88uH 3.95A 0.01ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	788In Stock	Cut Tape £4.22 £3.47 £3.21 £3.13 Reel £3.13 £3.10 MouseReel Available	Min.: 1 Mult.: 1 : 600	PCB Mount	1 Channel	CMS	SMD/SMT	88 uH	3.95 A	10 mOhms		- 40 C	+ 160 C	13.97 mm	13.97 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 258uH 2.45A 0.027ohms CMS3-7-R Eaton Electronics 1: £4.00 387In Stock	Mfr. Part No. CMS3-7-R Mouser Part No 704-CMS3-7-R	Eaton Electronics	Common Mode Chokes / Filters 258uH 2.45A 0.027ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	387In Stock	Cut Tape £4.00 £3.29 £3.19 Reel £3.19 £3.15 MouseReel Available	Min.: 1 Mult.: 1 : 600	PCB Mount	1 Channel	CMS	SMD/SMT	258 uH	2.45 A	27 mOhms		- 40 C	+ 160 C	13.97 mm	13.97 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters ECMS1V0704-102-R, 1000 ?, 3.0 A, 125 V, SMT ECMS1V0704-102-R Eaton Electronics 1: £0.705 145In Stock 6,000On Order	Mfr. Part No. ECMS1V0704-102-R Mouser Part No 504-ECMS1V0704-102-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0704-102-R, 1000 ?, 3.0 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	145In Stock 6,000On Order On Order Ship Dates Mfr. No: ECMS1V0704-102-R Stock: 145 Can Dispatch Immediately On Order: 1,500 Expected 24/11/2026 4,500 Expected 07/12/2026 Factory Lead Time: 12 Weeks	Cut Tape £0.705 £0.579 £0.505 £0.477 View Reel £0.382 £0.426 £0.406 £0.382 £0.382 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	PCB Mount	1 Channel	ECMS-R	SMD/SMT		3 A	17 mOhms		- 40 C	+ 125 C	7 mm	6 mm	3.8 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0704-132-R, 1300 ?, 2.5 A, 125 V, SMT ECMS1V0704-132-R Eaton Electronics 1: £0.661 801In Stock	Mfr. Part No. ECMS1V0704-132-R Mouser Part No 504-ECMS1V0704-132-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0704-132-R, 1300 ?, 2.5 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	801In Stock	Cut Tape £0.661 £0.546 £0.477 £0.465 £0.392 Reel £0.391 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	PCB Mount	1 Channel	ECMS-R	SMD/SMT		2.5 A	21 mOhms		- 40 C	+ 125 C	7 mm	6 mm	3.8 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0704-141-R, 140 ?, 9.0 A, 125 V, SMT ECMS1V0704-141-R Eaton Electronics 1: £0.676 2,048In Stock	Mfr. Part No. ECMS1V0704-141-R Mouser Part No 504-ECMS1V0704-141-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0704-141-R, 140 ?, 9.0 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	2,048In Stock	Cut Tape £0.676 £0.555 £0.485 £0.457 View Reel £0.388 £0.423 £0.399 £0.388 £0.388 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	PCB Mount	1 Channel	ECMS-R	SMD/SMT		9 A	10 mOhms		- 40 C	+ 125 C	7 mm	6 mm	3.8 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0704-272-R, 2700 ?, 1.0 A, 125 V, SMT ECMS1V0704-272-R Eaton Electronics 1: £0.638 1,016In Stock	Mfr. Part No. ECMS1V0704-272-R Mouser Part No 504-ECMS1V0704-272-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0704-272-R, 2700 ?, 1.0 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	1,016In Stock	Cut Tape £0.638 £0.523 £0.457 £0.43 View Reel £0.382 £0.398 £0.382 £0.382 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	PCB Mount	1 Channel	ECMS-R	SMD/SMT		1 A	63 mOhms		- 40 C	+ 125 C	7 mm	6 mm	3.8 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0704-302-R, 3000 ?, 0.9 A, 125 V, SMT ECMS1V0704-302-R Eaton Electronics 1: £0.713 256In Stock 3,000Expected 13/01/2027	Mfr. Part No. ECMS1V0704-302-R Mouser Part No 504-ECMS1V0704-302-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0704-302-R, 3000 ?, 0.9 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	256In Stock 3,000Expected 13/01/2027	Cut Tape £0.713 £0.586 £0.512 £0.482 View Reel £0.388 £0.446 £0.421 £0.39 £0.388 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	PCB Mount	1 Channel	ECMS-R	SMD/SMT		900 mA	75 mOhms		- 40 C	+ 125 C	7 mm	6 mm	3.8 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0704-451-R, 450 ?, 5.0 A, 125 V, SMT ECMS1V0704-451-R Eaton Electronics 1: £0.713 1,492In Stock 1,500Expected 26/10/2026	Mfr. Part No. ECMS1V0704-451-R Mouser Part No 504-ECMS1V0704-451-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0704-451-R, 450 ?, 5.0 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	1,492In Stock 1,500Expected 26/10/2026	Cut Tape £0.713 £0.589 £0.514 £0.485 View Reel £0.388 £0.448 £0.423 £0.403 £0.388 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	PCB Mount	1 Channel	ECMS-R	SMD/SMT		5 A	10 mOhms		- 40 C	+ 125 C	7 mm	6 mm	3.8 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0704-701-R, 700 ?, 4.0 A, 125 V, SMT ECMS1V0704-701-R Eaton Electronics 1: £0.615 697In Stock 1,500Expected 04/12/2026	Mfr. Part No. ECMS1V0704-701-R Mouser Part No 504-ECMS1V0704-701-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0704-701-R, 700 ?, 4.0 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	697In Stock 1,500Expected 04/12/2026	Cut Tape £0.615 £0.509 £0.444 £0.419 View Reel £0.388 £0.41 £0.388 £0.388 MouseReel Available	Min.: 1 Mult.: 1 : 1,500	PCB Mount	1 Channel	ECMS-R	SMD/SMT		4 A	15 mOhms		- 40 C	+ 125 C	7 mm	6 mm	3.8 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0905-272-R, 2700 ?, 2.0 A, 80 V, SMT ECMS1V0905-272-R Eaton Electronics 1: £0.668 715In Stock	Mfr. Part No. ECMS1V0905-272-R Mouser Part No 504-ECMS1V0905-272-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0905-272-R, 2700 ?, 2.0 A, 80 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	715In Stock	Cut Tape £0.668 £0.547 £0.478 £0.45 £0.416 Reel £0.398 MouseReel Available	Min.: 1 Mult.: 1 : 700	PCB Mount	1 Channel	ECMS-R	SMD/SMT					- 40 C	+ 125 C				Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0905-301-R, 300 ?, 6.0 A, 80 V, SMT ECMS1V0905-301-R Eaton Electronics 1: £0.661 1,275In Stock	Mfr. Part No. ECMS1V0905-301-R Mouser Part No 504-ECMS1V0905-301-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0905-301-R, 300 ?, 6.0 A, 80 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	1,275In Stock	Cut Tape £0.661 £0.54 £0.471 £0.444 Reel £0.416 View £0.442 £0.414 £0.392 MouseReel Available	Min.: 1 Mult.: 1 : 700	PCB Mount	1 Channel	ECMS-R	SMD/SMT					- 40 C	+ 125 C				Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V0905-601-R, 600 ?, 5.5 A, 80 V, SMT ECMS1V0905-601-R Eaton Electronics 1: £0.676 266In Stock 700On Order	Mfr. Part No. ECMS1V0905-601-R Mouser Part No 504-ECMS1V0905-601-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V0905-601-R, 600 ?, 5.5 A, 80 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	266In Stock 700On Order	Cut Tape £0.676 £0.554 £0.484 £0.457 Reel £0.395 View £0.422 £0.392 MouseReel Available	Min.: 1 Mult.: 1 : 700	PCB Mount	1 Channel	ECMS-R	SMD/SMT					- 40 C	+ 125 C				Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V1306-102-R, 1000 ?, 6.0 A, 125 V, SMT ECMS1V1306-102-R Eaton Electronics 1: £0.773 485In Stock	Mfr. Part No. ECMS1V1306-102-R Mouser Part No 504-ECMS1V1306-102-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V1306-102-R, 1000 ?, 6.0 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	485In Stock	Cut Tape £0.773 £0.636 £0.555 £0.523 £0.485 Reel £0.478 MouseReel Available	Min.: 1 Mult.: 1 : 500	PCB Mount	1 Channel	ECMS-R	SMD/SMT					- 40 C	+ 125 C				Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMS1V1306-801-R, 800 ?, 8.0 A, 125 V, SMT ECMS1V1306-801-R Eaton Electronics 1: £0.818 481In Stock	Mfr. Part No. ECMS1V1306-801-R Mouser Part No 504-ECMS1V1306-801-R	Eaton Electronics	Common Mode Chokes / Filters ECMS1V1306-801-R, 800 ?, 8.0 A, 125 V, SMT Learn More about Eaton Electronics eaton ecms r common mode chokes	Datasheet	481In Stock	Cut Tape £0.818 £0.67 £0.585 £0.552 Reel £0.512 View £0.543 £0.494 £0.478 MouseReel Available	Min.: 1 Mult.: 1 : 500	PCB Mount	1 Channel	ECMS-R	SMD/SMT					- 40 C	+ 125 C				Reel, Cut Tape, MouseReel	Common Mode Chokes
Common Mode Chokes / Filters ECMT1V1717S-330-R, 33.0 mH, THT, Std Mnt ECMT1V1717S-330-R Eaton Electronics 1: £1.62 668In Stock	Mfr. Part No. ECMT1V1717S-330-R Mouser Part No 504-ECMT1V1717S-330R	Eaton Electronics	Common Mode Chokes / Filters ECMT1V1717S-330-R, 33.0 mH, THT, Std Mnt Learn More about Eaton Electronics eaton ecmt r common mode chokes	Datasheet	668In Stock	£1.62 £1.33 £1.16 £1.10	Min.: 1 Mult.: 1	PCB Mount	1 Channel	ECMT-R	Through Hole	33 mH	500 mA	2.7 Ohms	240 kHz	- 40 C	+ 125 C				Bulk	Common Mode Chokes
Common Mode Chokes / Filters 166uH 1.0A 0.138ohms CMS1-13-R Eaton Electronics 1: £2.57 114In Stock 2,000Expected 28/09/2026	Mfr. Part No. CMS1-13-R Mouser Part No 704-CMS1-13-R	Eaton Electronics	Common Mode Chokes / Filters 166uH 1.0A 0.138ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	114In Stock 2,000Expected 28/09/2026	Cut Tape £2.57 £2.11 £1.96 £1.84 View Reel £1.62 £1.74 £1.63 £1.62 £1.62 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	PCB Mount	1 Channel	CMS	SMD/SMT	166 uH	1 A	138 mOhms		- 40 C	+ 160 C	9.4 mm	7.2 mm	2.6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 700uH 0.8A 0.23ohms CMS2-11-R Eaton Electronics 1: £3.21 365In Stock	Mfr. Part No. CMS2-11-R Mouser Part No 704-CMS2-11-R	Eaton Electronics	Common Mode Chokes / Filters 700uH 0.8A 0.23ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	365In Stock	Cut Tape £3.21 £2.65 £2.44 £2.30 View Reel £2.07 £2.17 £2.09 £2.07 £2.07 MouseReel Available	Min.: 1 Mult.: 1 : 800	PCB Mount	1 Channel	CMS	SMD/SMT	700 uH	800 mA	230 mOhms		- 40 C	+ 160 C	11.43 mm	11.43 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 102uH 2.8A 0.019ohms CMS2-4-R Eaton Electronics 1: £3.08 485In Stock 1,600Expected 14/12/2026	Mfr. Part No. CMS2-4-R Mouser Part No 704-CMS2-4-R	Eaton Electronics	Common Mode Chokes / Filters 102uH 2.8A 0.019ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	485In Stock 1,600Expected 14/12/2026	Cut Tape £3.08 £2.58 £2.38 £2.24 Reel £2.10 View £2.11 £2.10 £2.09 MouseReel Available	Min.: 1 Mult.: 1 : 800	PCB Mount	1 Channel	CMS	SMD/SMT	102 uH	2.8 A	19 mOhms		- 40 C	+ 160 C	11.43 mm	11.43 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 270uH 1.6A 0.06ohms CMS2-7-R Eaton Electronics 1: £3.03 377In Stock 800Expected 28/09/2026	Mfr. Part No. CMS2-7-R Mouser Part No 704-CMS2-7-R	Eaton Electronics	Common Mode Chokes / Filters 270uH 1.6A 0.06ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	377In Stock 800Expected 28/09/2026	Cut Tape £3.03 £2.50 £2.30 £2.17 £2.07 Reel £2.07 MouseReel Available	Min.: 1 Mult.: 1 : 800	PCB Mount	1 Channel	CMS	SMD/SMT	270 uH	1.6 A	60 mOhms		- 40 C	+ 160 C	8.89 mm	8.89 mm	6 mm	Reel, Cut Tape, MouseReel	Common Mode Chokes	Common Mode Inductor
Common Mode Chokes / Filters 28uH 5.7A 0.005ohms CMS3-1-R Eaton Electronics 1: £3.99 13In Stock 1,200Expected 22/12/2026	Mfr. Part No. CMS3-1-R Mouser Part No 704-CMS3-1-R	Eaton Electronics	Common Mode Chokes / Filters 28uH 5.7A 0.005ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	13In Stock 1,200Expected 22/12/2026	Cut Tape £3.99 £3.28 £3.05 Reel £3.05 MouseReel Available	Min.: 1 Mult.: 1 : 600	PCB Mount	1 Channel	CMS	SMD/SMT	28 uH	5.7 A	5 mOhms		- 40 C	+ 160 C	13.97 mm	13.97 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal
Common Mode Chokes / Filters 790uH 1.0A 0.145ohms CMS3-12-R Eaton Electronics 1: £3.72 135In Stock	Mfr. Part No. CMS3-12-R Mouser Part No 704-CMS3-12-R	Eaton Electronics	Common Mode Chokes / Filters 790uH 1.0A 0.145ohms Learn More about Eaton Electronics eaton common mode chokes	Datasheet	135In Stock	Cut Tape £3.72 £3.06 £3.05 Reel £3.05 MouseReel Available	Min.: 1 Mult.: 1 : 600	PCB Mount	1 Channel	CMS	SMD/SMT	790 uH	1.05 A	145 mOhms		- 40 C	+ 160 C	13.97 mm	13.97 mm	6 mm	Reel, Cut Tape, MouseReel	EMI Filters	Toroidal