Common Mode Chokes

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Filter Type	Number of Lines	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
	TCK-075 CMC 33.3UH 4A 2LN TH Traco Power	180 In Stock 1,540 Factory	1 : £3.87000 Tube	-	Tube	Active	-	2	33.3 µH @ 100 kHz	4A	8.5mOhm	500V	-	-40°C ~ 105°C	-	-	-	Through Hole	0.374" L x 0.374" W (9.50mm x 9.50mm)	0.276" (7.00mm)	Horizontal, 4 PC Pin
	TCK-101 CMC 305UH 2LN TH Traco Power	100 In Stock	1 : £5.01000 Tube	-	Tube	Active	-	2	305 µH @ 100 kHz	-	10mOhm	500V	-	-40°C ~ 105°C	-	-	-	Through Hole	-	0.492" (12.50mm)	Horizontal, 4 PC Pin

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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.