CIL21J inductor surface mount Series

The CIL21J series from Samsung is a line of shielded multi-layer inductors designed for surface-mount applications. These inductors are typically used in high-frequency circuits, power supplies, and RF filtering applications where space is limited and electromagnetic interference (EMI) suppression is critical. If you're working on designs that require compact, high-performance inductors with good EMI characteristics, these components are a solid choice.

One thing worth noting is their ability to provide excellent shielding against magnetic fields. This makes them particularly useful in environments where EMI compliance is a concern, such as in consumer electronics or medical devices. Engineers tend to reach for this when they need to fit a lot of functionality into a small form factor while maintaining performance and minimizing interference.

Another practical benefit is their robustness and reliability. They are designed to handle high currents and operate efficiently over a wide temperature range, making them suitable for both consumer and industrial applications. Their multi-layer construction also contributes to their stability and consistent performance across different manufacturing batches.

Mfr Part #	Quantity Available	Price	Category	MOQ	Unit Pack	Standard Package	EU RoHS	Automotive	Qualification	Leadfree Defin	Protection Features	Q @ Freq	Tolerance	Inductance	Test Frequency	Current - Output	Voltage - Supply	DC Resistance (DCR)	Current Rating (Max)	Frequency - Self Resonant	Resistance - Initial (Ri) (Min)	Size	Depth	Width	Height	Length	Packaging	Core Material	Mounting Type	Package / Case	Length - Overall	Type	Design	Matchcode	Technology	Standard Leadtime	Temperature - Test	Operating Temperature	Rad Hardened	Military Standard	Current - DC Forward (If) (Max)	Diameter	Shielding	Failure Rate
CIL21J1R0KNE Ind Chip Shielded Multi-Layer 1uH 10% 10MHz 45Q-Factor Ferrite 50mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 1uH 10% 10MHz 45Q-Factor Ferrite 50mA 300mOhm DCR 0805 Embossed T/R CIL21J 1µH 50mA 10% MLT samsung electro-mechanics	3200	1924: ¥0.0884	-	4000	4000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	1 uH	10MHz	50mA	75MHz	0.3Ohm	50 mA	75 MHz	300 mOhm	0805Inch	1.45 mm	1.25mm	1.05 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2 mm	Chip	SHIELDED	INDC1,0U0805	Multi-Layer	14 weeks	-55°C	-55C to 125C	No	Not Required	50 mA	Not Required mm	Shielded	Not Required
CIL21J1R2KNE Ind Chip Shielded Multi-Layer 1.2uH 10% 10MHz 45Q-Factor Ferrite 50mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 1.2uH 10% 10MHz 45Q-Factor Ferrite 50mA 400mOhm DCR 0805 Embossed T/R samsung electro-mechanics	10	4000: ¥0.0768	-	40000	4000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	1.2 uH	10MHz	50mA	65MHz	0.4Ohm	50 mA	65M	400 mOhm	0805Inch	1.45 mm	1.25mm	1.05 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC1,2U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-
CIL21J1R5KNE Ind Chip Shielded Multi-Layer 1.5uH 10% 10MHz 45Q-Factor Ferrite 50mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 1.5uH 10% 10MHz 45Q-Factor Ferrite 50mA 400mOhm DCR 0805 Embossed T/R CIL21J 1,5uH 50mA 10% MLT samsung electro-mechanics	10	4000: ¥0.0768	-	20000	4000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	1.5 uH	10MHz	50mA	60MHz	0.4Ohm	50 mA	60M	400 mOhm	0805Inch	1.45 mm	1.25mm	1.05 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC1,5U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-
CIL21J1R8KNE Ind Chip Shielded Multi-Layer 1.8uH 10% 10MHz 45Q-Factor Ferrite 50mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 1.8uH 10% 10MHz 45Q-Factor Ferrite 50mA 400mOhm DCR 0805 Embossed T/R samsung electro-mechanics	4000	4000: ¥0.0748	-	40000	4000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	1.8 uH	10MHz	50mA	55MHz	0.4Ohm	50 mA	55M	400 mOhm	0805Inch	1.45 mm	1.25mm	1.05 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC1,8U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-
CIL21J2R2KNE Ind Chip Shielded Multi-Layer 2.2uH 10% 10MHz 45Q-Factor Ferrite 30mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 2.2uH 10% 10MHz 45Q-Factor Ferrite 30mA 500mOhm DCR 0805 Embossed T/R samsung electro-mechanics	10	4000: ¥0.0768	-	20000	4000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	2.2 uH	10MHz	30mA	50MHz	0.5Ohm	30 mA	50M	500 mOhm	0805Inch	1.45 mm	1.25mm	1.05 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC2,2U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-
CIL21J2R7KNE Ind Chip Shielded Multi-Layer 2.7uH 10% 10MHz 45Q-Factor Ferrite 30mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 2.7uH 10% 10MHz 45Q-Factor Ferrite 30mA 600mOhm DCR 0805 Embossed T/R samsung electro-mechanics	10	20000: ¥0.1004	-	20000	2000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	2.7 uH	10MHz	30mA	45MHz	0.6Ohm	30 mA	45M	600 mOhm	0805Inch	1.45	1.25mm	1.45 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC2,7U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-
CIL21J3R3KNE Ind Chip Shielded Multi-Layer 3.3uH 10% 10MHz 45Q-Factor Ferrite 30mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 3.3uH 10% 10MHz 45Q-Factor Ferrite 30mA 600mOhm DCR 0805 Embossed T/R samsung electro-mechanics	10	2000: ¥0.0816	-	10000	2000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	3.3 uH	10MHz	30mA	41MHz	0.6Ohm	30 mA	41M	600 mOhm	0805Inch	1.45	1.25mm	1.45 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC3,3U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-
CIL21J3R9KNE Ind Chip Shielded Multi-Layer 3.9uH 10% 10MHz 45Q-Factor Ferrite 30mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 3.9uH 10% 10MHz 45Q-Factor Ferrite 30mA 800mOhm DCR 0805 Embossed T/R CIL21J 3,9µH 30mA 10% MLT samsung electro-mechanics	10	40000: ¥0.1055	-	40000	2000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	3.9 uH	10MHz	30mA	38MHz	0.8Ohm	30 mA	38M	800 mOhm	0805Inch	1.45	1.25mm	1.45 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC3,9U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-
CIL21J4R7KNE Ind Chip Shielded Multi-Layer 4.7uH 10% 10MHz 45Q-Factor Ferrite 30mA 0805 Embossed T/R Inductor Chip Shielded Multi-Layer 4.7uH 10% 10MHz 45Q-Factor Ferrite 30mA 900mOhm DCR 0805 Embossed T/R CIL21J 4,7µH 30mA 10% MLT samsung electro-mechanics	10	2000: ¥0.0707	-	10000	2000	Tape & Reel	Compliant	NO	45	RoHS-conform	Shielded	45@10MHz	10 %	4.7 uH	10MHz	30mA	35MHz	0.9Ohm	30 mA	35M	900 mOhm	0805Inch	1.45	1.25mm	1.45 mm	2mm	Embossed Tape and Reel	Ferrite	SMD	0805	2.2	Chip	SHIELDED	INDC4,7U0805	Multi-Layer	14 weeks	-55°C	125	-	-	-	-	-	-

cigen-CIL21J

Documents & Media

Frequently Asked Questions

CIL21J inductor surface mount - Part List

Inductance

Voltage - Supply

Frequency - Self Resonant

Matchcode

DC Resistance (DCR)

Resistance - Initial (Ri) (Min)

MOQ

Unit Pack

Current - Output

Current Rating (Max)

Depth

Height

Length - Overall

Operating Temperature