Low DC Resistance Unshielded SMD Power Inductors LanTu Micro SCD3521-220MT for Power Conversion Solutions

Price Negotiable

Price: Negotiable

MOQ: Negotiable

Delivery Time: Negotiable

Product Description

Unshielded SMD Power Inductors - SCD3521 Series

Product Overview

The SCD3521 Series from SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD. offers unshielded SMD power inductors designed for surface mounting equipment. These low-cost, silver-plated inductors feature a small size with high rated current capability and low DC resistance. They are suitable for various applications including power supplies for VTRs, LCD televisions, notebook PCs, portable communication equipment, and DC/DC converters. The series is RoHS, Halogen Free, and REACH compliant.

Product Attributes

Brand: SHENZHEN LANTU MICRO ELECTRIC TECHNOLOGY CO., LTD.
Series: SCD3521
Type: Unshielded SMD Power Inductors
Design: Silver plated type, Low cost design
Certifications: RoHS, Halogen Free and REACH Compliance
Packaging: Bulk Package (B) or Tape & Reel (T)

Technical Specifications

Part No.	Inductance (H)	Inductance Tolerance	Test Freq @0A	SRF Typ (MHz)	DCR Typ () Max	Saturation Current (A) Max (Isat)	Temperature Rise Current (A) Max (Irms)	Dimensions (LWH) (mm)
SCD3521-1R0M	1.0	M (20%)	100KHz	120	0.045	3.30	2.20	3.52.1
SCD3521-1R2M	1.2	M (20%)	100KHz	100	0.050	3.00	2.10	3.52.1
SCD3521-1R5M	1.5	M (20%)	100KHz	85	0.055	2.70	1.70	3.52.1
SCD3521-1R8M	1.8	M (20%)	100KHz	75	0.070	2.50	1.65	3.52.1
SCD3521-2R2M	2.2	M (20%)	100KHz	62	0.085	2.30	1.60	3.52.1
SCD3521-2R7M	2.7	M (20%)	100KHz	53	0.100	2.20	1.40	3.52.1
SCD3521-3R3M	3.3	M (20%)	100KHz	47	0.120	1.95	1.04	3.52.1
SCD3521-3R9M	3.9	M (20%)	100KHz	41	0.125	1.85	1.00	3.52.1
SCD3521-4R7M	4.7	M (20%)	100KHz	38	0.135	1.60	1.00	3.52.1
SCD3521-5R6M	5.6	M (20%)	100KHz	33	0.145	1.55	0.95	3.52.1
SCD3521-6R8M	6.8	M (20%)	100KHz	31	0.200	1.40	0.95	3.52.1
SCD3521-8R2M	8.2	M (20%)	100KHz	27	0.250	1.20	0.92	3.52.1
SCD3521-100M	10	M (20%)	100KHz	23	0.320	1.05	0.90	3.52.1
SCD3521-120M	12	M (20%)	100KHz	21	0.350	1.00	0.85	3.52.1
SCD3521-150M	15	M (20%)	100KHz	19	0.460	0.90	0.75	3.52.1
SCD3521-180M	18	M (20%)	100KHz	17	0.520	0.80	0.70	3.52.1
SCD3521-220M	22	M (20%)	100KHz	15	0.650	0.75	0.60	3.52.1
SCD3521-270M	27	M (20%)	100KHz	14	0.750	0.70	0.55	3.52.1
SCD3521-330M	33	M (20%)	100KHz	12	0.920	0.60	0.50	3.52.1
SCD3521-390M	39	M (20%)	100KHz	11	1.120	0.55	0.48	3.52.1
SCD3521-470M	47	M (20%)	100KHz	10	1.270	0.50	0.45	3.52.1
SCD3521-560M	56	M (20%)	100KHz	9.3	1.500	0.45	0.30	3.52.1
SCD3521-680M	68	M (20%)	100KHz	8.4	2.000	0.40	0.26	3.52.1
SCD3521-820M	82	M (20%)	100KHz	7.5	2.150	0.35	0.23	3.52.1
SCD3521-101M	100	M (20%)	100KHz	6.8	2.800	0.34	0.20	3.52.1
SCD3521-121M	120	M (20%)	100KHz	6.2	3.400	0.33	0.18	3.52.1
SCD3521-151M	150	M (20%)	100KHz	5.5	4.200	0.28	0.16	3.52.1
SCD3521-181M	180	M (20%)	100KHz	5.0	4.500	0.27	0.15	3.52.1
SCD3521-221M	220	M (20%)	100KHz	4.5	5.700	0.25	0.14	3.52.1
SCD3521-271M	270	M (20%)	100KHz	4.0	8.500	0.22	0.10	3.52.1
SCD3521-331M	330	M (20%)	100KHz	3.6	9.500	0.19	0.09	3.52.1

Environmental Data

Operating Temperature: -40 to +125 (Including coils self-temperature rise)

Test Equipment

Inductance (L): HP4284A, HP4285A LCR meter or equivalent
Saturation Current (Isat) & Temperature Rise Current (Irms): HP4284+42841A or equivalent
Self-Resonant Frequency (SRF): Agilent E4991A or equivalent
DC Resistance (DCR): Chroma 16502 or equivalent

Dimensions (mm)

Part No.	A	B	C	D	H	I	J
SCD3521	3.50.3	3.00.3	2.10.3	1.0	3.5	1.6	0.8

Recommended Land Pattern

(Image placeholder for Recommended Land Pattern)

Product Packaging

Tape and Reel Specifications: (Dimensions are in mm)

(Image placeholder for Tape and Reel Specifications)

Reel Dimensions: (mm)

(Image placeholder for Reel Dimensions)

Tape Dimension: (mm)

(Image placeholder for Tape Dimension)

Cover tape peel off condition:

a) Cover tape peel force shall be 10 to 120g
b) Noodle strip peeling angle 165 to 180

Packing quantity:

Part No.	Tape Dimension W (mm)	P (mm)	W1 (mm)	Reel Dimensions (mm) A	B	C	D	REEL (PCS)	Inside Box (PCS)	Outside Carton (PCS)	Total Quantity
SCD3521	12	8	5.5	12.4	100	13	330	3000	12000	48,000

Reminders for Using These Products

Storage period is within 12 months. Storage conditions: temperature 5~40C, humidity 35~65% RH or less.
Do not use or store in environments with gas corrosion (salt, acid, alkali, etc.).
Avoid direct contact with terminals with bare hands due to oil secretions.
Handle products carefully to prevent damage from dropping or improper removal.
Do not bend terminals with excessive stress to avoid wire fracture.
Do not rinse coils; contact the manufacturer if cleaning is necessary.
Do not expose products to magnets or magnetic fields.
Preheat components before soldering; ensure the temperature difference between solder and chip does not exceed 150C.
Soldering corrections after mounting should be within specified conditions. Overheating may cause short circuits, performance degradation, or reduced lifespan.
Sufficient allowance should be made for thermal design due to self-heating when power is ON.
For non-magnetic shield types, carefully lay out coils on the circuit board to prevent malfunctions due to magnetic interference.