Common Mode Chokes

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Filter Type	Number of Lines	Impedance @ 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
	SRF2012A-801Y CMC 300MA 2LN 800 OHM SMD Bourns Inc.	1,542 In Stock	1 : £0.20000 Cut Tape (CT) 2,000 : £0.14409 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	800 Ohms @ 100 MHz	300mA	880mOhm	50V	-	-55°C ~ 125°C	-	-	-	Surface Mount	0.079" L x 0.047" W (2.00mm x 1.20mm)	0.055" (1.40mm)	Horizontal, 4 PC Pad
	SRF2012-900YA CMC 400MA 2LN 90 OHM SMD Bourns Inc.	130,486 In Stock	1 : £0.20000 Cut Tape (CT) 2,000 : £0.10910 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	90 Ohms @ 100 MHz	400mA	300mOhm	50V	-	-40°C ~ 125°C	-	-	-	Surface Mount	0.079" L x 0.047" W (2.00mm x 1.20mm)	0.055" (1.40mm)	Horizontal, 4 PC Pad

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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.