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.	1,242 In Stock	1 : €0.23000 Cut Tape (CT) 2,000 : €0.16643 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
SRF2012-361YA CMC 300MA 2LN 360 OHM SMD Bourns Inc.	14,273 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	360 Ohms @ 100 MHz	300mA	500mOhm	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
SRF2012-121YA CMC 400MA 2LN 120 OHM SMD Bourns Inc.	1,225 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	120 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
SRF2012-900YA CMC 400MA 2LN 90 OHM SMD Bourns Inc.	130,486 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 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
SRF2012-901YA CMC 100MA 2LN 900 OHM SMD Bourns Inc.	11,090 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	900 Ohms @ 100 MHz	100mA	880mOhm	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
SRF2012-261YA CMC 300MA 2LN 260 OHM SMD Bourns Inc.	4,987 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	260 Ohms @ 100 MHz	300mA	400mOhm	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
SRF2012-201YA CMC 300MA 2LN 200 OHM SMD Bourns Inc.	2,208 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	200 Ohms @ 100 MHz	300mA	400mOhm	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
SRF2012-671YA CMC 140MA 2LN 670 OHM SMD Bourns Inc.	1,572 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	670 Ohms @ 100 MHz	140mA	600mOhm	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
SRF2012-181YA CMC 350MA 2LN 180 OHM SMD Bourns Inc.	1,292 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	180 Ohms @ 100 MHz	350mA	350mOhm	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
SRF2012-371YA CMC 300MA 2LN 370 OHM SMD Bourns Inc.	921 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	370 Ohms @ 100 MHz	300mA	500mOhm	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
SRF2012-300YA CMC 400MA 2LN 30 OHM SMD Bourns Inc.	627 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	30 Ohms @ 100 MHz	400mA	200mOhm	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
SRF2012-161YA CMC 350MA 2LN 160 OHM SMD Bourns Inc.	927 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	160 Ohms @ 100 MHz	350mA	350mOhm	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
SRF2012-501YA CMC 300MA 2LN 500 OHM SMD Bourns Inc.	85 In Stock	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	500 Ohms @ 100 MHz	300mA	500mOhm	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
SRF2012-670YA CMC 400MA 2LN 67 OHM SMD Bourns Inc.	0 In Stock Check Lead Time	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	67 Ohms @ 100 MHz	400mA	250mOhm	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
SRF2012-221YA CMC 300MA 2LN 220 OHM SMD Bourns Inc.	0 In Stock Check Lead Time	1 : €0.24000 Cut Tape (CT) 2,000 : €0.12602 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	-	2	220 Ohms @ 100 MHz	300mA	400mOhm	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
SRF2012-301YA CMC 300MA 2LN 300 OHM SMD Bourns Inc.	0 In Stock Check Lead Time	2,000 : €0.12890 Tape & Reel (TR)	SRF2012A	Tape & Reel (TR)	Active	-	2	300 Ohms @ 100 MHz	300mA	500mOhm	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.