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We offer a wide range of semishielded, shielded, unshielded and wirewound SMD power inductors from multiple manufacturers.

An SMD Inductor, or Surface Mount Device Inductor, has no wire leads on its ends. This type of inductor is mounted directly to the surface of a circuit board via a metal pad on each end of the device.

An SMD inductor commonly comprises a small coil shaped much like a spring, made of an electrically conductive wire. Some SMD inductors have a core of some type at the centre of the coil. Depending on the material chosen to serve as a core, often ferrite based, and the size and density of the core itself, the operational properties of the coil can be altered to fit specific needs.

How to choose a suitable device

As SMD power inductors are typically used for switching power supplies in portable applications like mobile phones, choosing a suitable device depends above all on its size. Circuit board space is at a premium, especially as ever more functionality, and an associated increase in current, is added to the phone.

Other key criteria include the device’s inductance value at the power supply switching frequency, its coil DC resistance, the additional saturation current, the additional RMS current, the equivalent series impedance (ESR) and the Q factor. The choice of shielded or unshielded inductor type is also important, and depends on the application.

Since chip inductor manufacturers rarely provide ESR and Q factor information, designers should ask them for it. The relationship between the inductance and the current given by the manufacturer is often limited to 25°C, so the relevant data within the desired operating temperature range should be obtained. The worst case is generally 85°C.

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Manufacturer Part No	Order Code	Description / Manufacturer	Price For	Price	Quantity	Inductance	RMS Current (Irms)	Inductor Construction	Saturation Current (Isat)	Product Range	Power Inductor Case	DC Resistance Max	Inductance Tolerance	Product Length	Product Width	Product Height
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78404054068	4036709 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 6.8 µH, 3.01 A, Semishielded, 3.2 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036709 4036709RL in Re-reel	1+ €1.13 50+ €0.997 100+ €0.93 250+ €0.877 500+ €0.812 1500+ €0.758 7500+ €0.741 15000+ €0.724 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	6.8µH	3.01A	Semishielded	3.2A	WE-LQSA Series	5mm x 5mm x 4mm	0.052ohm	± 20%	5mm	5mm	4mm
78404054047	4036708 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 4.7 µH, 3.64 A, Semishielded, 3.8 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036708 4036708RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.7µH	3.64A	Semishielded	3.8A	WE-LQSA Series	5mm x 5mm x 4mm	0.036ohm	± 20%	5mm	5mm	4mm
78404054033	4036707 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 3.3 µH, 4.06 A, Semishielded, 4.3 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036707 4036707RL in Re-reel	1+ €1.13 50+ €0.997 100+ €0.93 250+ €0.877 500+ €0.812 1500+ €0.758 7500+ €0.741 15000+ €0.724 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	3.3µH	4.06A	Semishielded	4.3A	WE-LQSA Series	5mm x 5mm x 4mm	0.029ohm	± 20%	5mm	5mm	4mm
78404054680	4036714 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 68 µH, 970 mA, Semishielded, 990 mA, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036714 4036714RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	68µH	970mA	Semishielded	990mA	WE-LQSA Series	5mm x 5mm x 4mm	0.516ohm	± 20%	5mm	5mm	4mm
78404064330	4036726 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 33 µH, 1.7 A, Semishielded, 2 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036726 4036726RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	33µH	1.7A	Semishielded	2A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.168ohm	± 20%	6mm	6mm	4.6mm

78404054015	4036705 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 1.5 µH, 5.22 A, Semishielded, 6 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036705 4036705RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1.5µH	5.22A	Semishielded	6A	WE-LQSA Series	5mm x 5mm x 4mm	0.018ohm	± 20%	5mm	5mm	4mm

78404064680	4036728 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 68 µH, 1.1 A, Semishielded, 1.4 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036728 4036728RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	68µH	1.1A	Semishielded	1.4A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.367ohm	± 20%	6mm	6mm	4.6mm

78404084150	4036730 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 15 µH, 3.75 A, Semishielded, 3.9 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036730 4036730RL in Re-reel	1+ €1.26 50+ €1.12 100+ €1.04 250+ €0.982 500+ €0.909 1000+ €0.849 5000+ €0.83 10000+ €0.811 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	15µH	3.75A	Semishielded	3.9A	WE-LQSA Series	8mm x 8mm x 4.2mm	0.06ohm	± 20%	8mm	8mm	4.2mm

78404064068	4036721 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 6.8 µH, 3.3 A, Semishielded, 4.3 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036721 4036721RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	6.8µH	3.3A	Semishielded	4.3A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.042ohm	± 20%	6mm	6mm	4.6mm

78404064033	4036719 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 3.3 µH, 4.1 A, Semishielded, 6.5 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036719 4036719RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	3.3µH	4.1A	Semishielded	6.5A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.028ohm	± 20%	6mm	6mm	4.6mm

78404064100	4036722 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 10 µH, 2.8 A, Semishielded, 3.5 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036722 4036722RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10µH	2.8A	Semishielded	3.5A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.058ohm	± 20%	6mm	6mm	4.6mm

78404064101	4036729 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 100 µH, 900 mA, Semishielded, 1.2 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036729 4036729RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100µH	900mA	Semishielded	1.2A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.532ohm	± 20%	6mm	6mm	4.6mm

78404064470	4036727 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 47 µH, 1.4 A, Semishielded, 1.6 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036727 4036727RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	47µH	1.4A	Semishielded	1.6A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.252ohm	± 20%	6mm	6mm	4.6mm

78404064220	4036725 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 22 µH, 1.9 A, Semishielded, 2.5 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036725 4036725RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	22µH	1.9A	Semishielded	2.5A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.12ohm	± 20%	6mm	6mm	4.6mm

78404054101	4036715 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 100 µH, 820 mA, Semishielded, 820 mA, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036715 4036715RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100µH	820mA	Semishielded	820mA	WE-LQSA Series	5mm x 5mm x 4mm	0.72ohm	± 20%	5mm	5mm	4mm

78404064047	4036720 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 4.7 µH, 3.7 A, Semishielded, 5.5 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036720 4036720RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	4.7µH	3.7A	Semishielded	5.5A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.034ohm	± 20%	6mm	6mm	4.6mm

78404064010	4036716 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 1 µH, 6.7 A, Semishielded, 11.5 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036716 4036716RL in Re-reel	1+ €1.13 50+ €0.997 100+ €0.93 250+ €0.877 500+ €0.812 1500+ €0.758 7500+ €0.741 15000+ €0.724 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1µH	6.7A	Semishielded	11.5A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.011ohm	± 30%	6mm	6mm	4.6mm

78404064150	4036723 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 15 µH, 2.4 A, Semishielded, 3 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036723 4036723RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	15µH	2.4A	Semishielded	3A	WE-LQSA Series	6mm x 6mm x 4.6mm	0.088ohm	± 20%	6mm	6mm	4.6mm

78404054022	4036706 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 2.2 µH, 4.54 A, Semishielded, 5.3 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036706 4036706RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	2.2µH	4.54A	Semishielded	5.3A	WE-LQSA Series	5mm x 5mm x 4mm	0.023ohm	± 20%	5mm	5mm	4mm

78404054010	4036704 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 1 µH, 5.7 A, Semishielded, 7.4 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036704 4036704RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	1µH	5.7A	Semishielded	7.4A	WE-LQSA Series	5mm x 5mm x 4mm	0.014ohm	± 30%	5mm	5mm	4mm

78404054100	4036710 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 10 µH, 2.45 A, Semishielded, 2.5 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036710 4036710RL in Re-reel	1+ €1.17 50+ €1.03 100+ €0.962 250+ €0.908 500+ €0.84 1500+ €0.785 7500+ €0.767 15000+ €0.749 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	10µH	2.45A	Semishielded	2.5A	WE-LQSA Series	5mm x 5mm x 4mm	0.082ohm	± 20%	5mm	5mm	4mm

78404084470	4036732 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 47 µH, 2.23 A, Semishielded, 2.18 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036732 4036732RL in Re-reel	1+ €1.26 50+ €1.12 100+ €1.04 250+ €0.982 500+ €0.909 1000+ €0.849 5000+ €0.83 10000+ €0.811 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	47µH	2.23A	Semishielded	2.18A	WE-LQSA Series	8mm x 8mm x 4.2mm	0.168ohm	± 20%	8mm	8mm	4.2mm

78404084680	4036733 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 68 µH, 1.8 A, Semishielded, 1.82 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036733 4036733RL in Re-reel	1+ €1.26 50+ €1.12 100+ €1.04 250+ €0.982 500+ €0.909 1000+ €0.849 5000+ €0.83 10000+ €0.811 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	68µH	1.8A	Semishielded	1.82A	WE-LQSA Series	8mm x 8mm x 4.2mm	0.245ohm	± 20%	8mm	8mm	4.2mm

78404054150	4036711 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 15 µH, 2.01 A, Semishielded, 2.2 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036711 4036711RL in Re-reel	1+ €1.24 50+ €1.07 100+ €0.973 250+ €0.955 500+ €0.936 1500+ €0.917 7500+ €0.899 15000+ €0.88 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	15µH	2.01A	Semishielded	2.2A	WE-LQSA Series	5mm x 5mm x 4mm	0.108ohm	± 20%	5mm	5mm	4mm

78404084220	4036731 Data Sheet + RoHS Date/Lot Code	Power Inductor (SMD), 22 µH, 3.2 A, Semishielded, 3.2 A, WE-LQSA Series WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:4036731 4036731RL in Re-reel	1+ €1.39 50+ €1.19 100+ €1.09 250+ €1.08 500+ €1.07 1000+ €1.05 5000+ €1.03 10000+ €1.01 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	22µH	3.2A	Semishielded	3.2A	WE-LQSA Series	8mm x 8mm x 4.2mm	0.085ohm	± 20%	8mm	8mm	4.2mm

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