Common Mode Chokes

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Filter Type	Number of Lines	Impedance @ Frequency	Inductance @ Frequency	Current Rating (Max)	DC Resistance (DCR) (Max)	Voltage Rating - DC	Voltage Rating - AC	Operating Temperature	Ratings	Approval Agency	Features	Mounting Type	Size / Dimension	Height (Max)	Package / Case
744212510 CMC 51UH 300MA 2LN 300 OHM SMD Würth Elektronik	4,635 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $4.53722 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Signal Line	2	300 Ohms @ 300 MHz	51 µH @ 100 kHz	300mA	160mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead
744212221 CMC 220UH 300MA 2LN 1.2K OHM SMD Würth Elektronik	4,082 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $4.53722 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Signal Line	2	1.2 kOhms @ 35 MHz	220 µH @ 100 kHz	300mA	280mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead
744212331 CMC 330UH 300MA 2LN 2K OHM SMD Würth Elektronik	2,424 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $4.53722 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Power, Signal Line	2	2 kOhms @ 20 MHz	330 µH @ 100 kHz	300mA	300mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead
744212100 CMC 10UH 300MA 2LN 1.2K OHM SMD Würth Elektronik	1,312 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $5.04135 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Signal Line	2	1.2 kOhms @ 135 MHz	10 µH @ 100 kHz	300mA	240mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead
744212181 CMC 180UH 300MA 2LN 1K OHM SMD Würth Elektronik	121 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $4.53722 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Signal Line	2	1 kOhms @ 40 MHz	180 µH @ 100 kHz	300mA	250mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead
744212470 CMC 47UH 300MA 2LN 300 OHM SMD Würth Elektronik	1,832 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $5.04135 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Signal Line	2	300 Ohms @ 300 MHz	47 µH @ 100 kHz	300mA	160mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead
744212820 CMC 82UH 300MA 2LN 440 OHM SMD Würth Elektronik	1,731 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $5.04135 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Power, Signal Line	2	440 Ohms @ 180 MHz	82 µH @ 100 kHz	300mA	200mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead
744212101 CMC 100UH 300MA 2LN 500 OHM SMD Würth Elektronik	896 In Stock	1 : $6.20000 Cut Tape (CT) 1,000 : $4.53722 Tape & Reel (TR)	WE-SL1	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Power, Signal Line	2	500 Ohms @ 60 MHz	100 µH @ 100 kHz	300mA	220mOhm	80V	-	-40°C ~ 105°C	-	-	-	Surface Mount	0.256" L x 0.142" W (6.50mm x 3.60mm)	0.071" (1.80mm)	Horizontal, 4 J-Lead

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A common mode choke is an electrical filter that blocks high frequency noise common to two or more data or power lines while allowing the desired DC or low-frequency signal to pass. Common mode (CM) noise current is typically radiated from sources such as unwanted radio signals, unshielded electronics, inverters and motors. Left unfiltered, this noise presents interference problems in electronics and electrical circuits.