Wire Wound Common Mode Choke - YLM4520 Series

The YLM4520 Series is a wire wound common mode choke designed for EMI noise suppression. It features a Surface Mount Device (SMD) construction with a low profile, high impedance, excellent frequency characteristics, self-electromagnetic shielding, and low magnetic flux leakage. This series is ideal for applications such as LED lighting, TV games, and monitors to mitigate common-mode noise.

Product Attributes

Brand: YJY ()
Origin: Shenzhen, China
Material List: CORE: FERRITE (SINCORES OR EQ), WIRE: 2UEW P180 (PACIFIC OR EQ), TAPE: DM TAPE (HENGRENXIN OR EQ), SOLDER: Sn Cu (SHENMAO OR EQ), INK: Black (BON MARK)

Technical Specifications

Part Number	Impedance () @100MHz/0.1V (Min)	Impedance () @100MHz/0.1V (Typ)	DC Resistance (m) Max.	Rated Current (A) Max.	Rated Volt. (V) Max.	IR (M) Min.	Marking	Dimensions (A x B x C) (mm)	Taping Dimensions (W x A x B x D x P x K x T) (mm)	Reel Dimensions (W x W1 x A x B x C x D) (mm)
YLM4520-301T	100	300	45	3.0	50	10	301	4.70.5 x 4.50.5 x 2.0	16.00.3 x 6.90.3 x 8.40.3 x 7.50.1 x 120.1 x 4.20.1 x 0.400.05	3302.0 x 16.42.0 x 13.00.50 x 21.00.80 x 2.00.50 x 100Min
YLM4520-401T	200	400	50	2.5	50	10	401	4.70.5 x 4.50.5 x 2.0	16.00.3 x 6.90.3 x 8.40.3 x 7.50.1 x 120.1 x 4.20.1 x 0.400.05	3302.0 x 16.42.0 x 13.00.50 x 21.00.80 x 2.00.50 x 100Min
YLM4520-701T	500	700	59	2.2	50	10	701	4.70.5 x 4.50.5 x 2.0	16.00.3 x 6.90.3 x 8.40.3 x 7.50.1 x 120.1 x 4.20.1 x 0.400.05	3302.0 x 16.42.0 x 13.00.50 x 21.00.80 x 2.00.50 x 100Min
YLM4520-901T	700	900	68	2.1	50	10	901	4.70.5 x 4.50.5 x 2.0	16.00.3 x 6.90.3 x 8.40.3 x 7.50.1 x 120.1 x 4.20.1 x 0.400.05	3302.0 x 16.42.0 x 13.00.50 x 21.00.80 x 2.00.50 x 100Min
YLM4520-102T	800	1000	68	2.1	50	10	102	4.70.5 x 4.50.5 x 2.0	16.00.3 x 6.90.3 x 8.40.3 x 7.50.1 x 120.1 x 4.20.1 x 0.400.05	3302.0 x 16.42.0 x 13.00.50 x 21.00.80 x 2.00.50 x 100Min
YLM4520-122T	1000	1200	74	2.0	50	10	122	4.70.5 x 4.50.5 x 2.0	16.00.3 x 6.90.3 x 8.40.3 x 7.50.1 x 120.1 x 4.20.1 x 0.400.05	3302.0 x 16.42.0 x 13.00.50 x 21.00.80 x 2.00.50 x 100Min
YLM4520-142T	1200	1400	81	1.9	50	10	142	4.70.5 x 4.50.5 x 2.0	16.00.3 x 6.90.3 x 8.40.3 x 7.50.1 x 120.1 x 4.20.1 x 0.400.05	3302.0 x 16.42.0 x 13.00.50 x 21.00.80 x 2.00.50 x 100Min

Reliability Testing

Test Item	Condition
Operating Temperature	-30 to +100 (Contain Heating coil)
Appearance Inspection	No external defects by visual inspection
Terminal Strength	After soldering, between copper plate and terminals of coils, push in two directions of X, Y with standing 10N(1.02kg) for 10+/-2 sec. Terminal should not peel off.
Heat endurance of reflow soldering	Refer to figure
Insulating resistance	Over 100 M at 100V D.C. between wire and core.
Dielectric Strength	Apply at 0.5KV 3mA for 1 minute between wire and core.
Temperature characteristics	Inductance coefficient (0~2,000) 10 / (-30 ~ +100 )
Humidity characteristics	Inductance deviation within 10%, after 96 hours in 90~95% relative humidity at 40 2 and 1 hours drying under normal condition. A test is made under the above mentioned condition, and it is kept for 2 hours in the normal.

Soldering Temperature Graph

Recommended soldering temperature graph is provided (refer to figure).

Taping and Reel Dimensions

Taping dimensions and Reel dimensions are specified in millimeters.

Cover Tape Peel Off Condition

Cover tape peel force shall be 0.1N to 1.3N. Reference peel speed 30010mm/min.

2409280232_YJYCOIN-YLM4520-102T_C2839957.pdf

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