Air Core Inductors

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We offer a range of Air Core Inductors with choices of inductance, RMS current, and inductance tolerance.

An Air Core Inductor does not depend upon a ferromagnetic material to achieve its specified inductance. Instead, it comprises windings coiled onto an insulator such as Bakelite, glass, or PTFE, with only air inside the coil.

One of the biggest advantages of an air core inductor is the minimal signal loss that occurs at higher magnetic field strengths. With ferromagnetic cores such as iron, the core can become magnetically saturated when the magnetic field is too strong. This leads to a loss in inductance, but an air core inductor has no such problem. An air core inductor can carry electromagnetic frequencies up to 1 GHz, but ferromagnetic core inductors tend to experience loss when the frequency exceeds 100 MHz.

Air core inductors are also free of the 'iron losses' which affect ferromagnetic cores. As frequency is increased this advantage becomes progressively more important. You obtain better Q-factor, greater efficiency, greater power handling, and less distortion.

Applications for Air Core Inductors

Sometimes non-linearity in the magnetization curve can be tolerated; for example, in switching converters. However, air core inductors are essential in circuits such as audio cross over networks in hi-fi speaker systems that must avoid distortion.

Most radio transmitters rely on air coils to prevent the production of harmonics. As well as their use in constructing RF tuning coils, Air Core Inductors are also found in filter circuits, snubber circuits, and high-frequency applications including TV and radio receivers.

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Manufacturer Part No	Order Code	Description / Manufacturer	Price For	Price	Quantity	Inductance	RMS Current (Irms)	Product Range	Inductance Tolerance	DC Resistance Max	Self Resonant Frequency	Product Length	Product Width	Product Height
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2929SQ-331GEC	2287164 Data Sheet + RoHS	Air Core Inductor, Square, 330 nH, 4.7 A, 2929SQ, ± 5%, 0.0125 ohm, 660 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2287164 2287164RL in Re-reel	1+ HK$28.28 150+ HK$19.90 450+ HK$13.90 900+ HK$12.91	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	330nH	4.7A	2929SQ	± 5%	0.0125ohm	660MHz	10.29mm	7.49mm	7.24mm
132-20SMGLB	2286975 Data Sheet + RoHS	Air Core Inductor, 538 nH, 2 A, Maxi Spring, ± 2%, 0.09 ohm, 490 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2286975 2286975RL in Re-reel	1+ HK$23.35 250+ HK$16.44 500+ HK$11.51 800+ HK$10.69	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	538nH	2A	Maxi Spring	± 2%	0.09ohm	490MHz	10.55mm	6.1mm	5.97mm
2929SQ-331GEC	2287164RL Data Sheet + RoHS	Air Core Inductor, Square, 330 nH, 4.7 A, 2929SQ, ± 5%, 0.0125 ohm, 660 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2287164RL 2287164 in Cut Tape	1+ HK$28.28 150+ HK$19.90 450+ HK$13.90 900+ HK$12.91	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	330nH	4.7A	2929SQ	± 5%	0.0125ohm	660MHz	10.29mm	7.49mm	7.24mm
1212VS-22NMEB	2343762 Data Sheet + RoHS	Air Core Inductor, High Current, 22 nH, 57 A, 1212VS, ± 20%, 550 µohm, 918 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2343762 2343762RL in Re-reel	1+ HK$28.22 10+ HK$21.83 25+ HK$17.90 50+ HK$16.85	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	22nH	57A	1212VS	± 20%	550µohm	918MHz	12mm	11.5mm	6.6mm
B06TGLC	2287179 Data Sheet + RoHS	Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 2%, 0.0045 ohm, 2.2 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2287179 2287179RL in Re-reel	1+ HK$21.54 250+ HK$15.13 500+ HK$10.61 1000+ HK$9.87	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	17.5nH	4A	Mini Spring	± 2%	0.0045ohm	2.2GHz	6.86mm	2.79mm	3.15mm

2222SQ-181JEC	2287153RL Data Sheet + RoHS	Air Core Inductor, Square, 180 nH, 5 A, 2222SQ, ± 5%, 0.0095 ohm, 1.1 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2287153RL 2287153 in Cut Tape	1+ HK$19.08 250+ HK$13.40 500+ HK$9.38 1000+ HK$8.72	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	180nH	5A	2222SQ	± 5%	0.0095ohm	1.1GHz	8.19mm	5.59mm	5.69mm

2222SQ-301JEC	2287156 Data Sheet + RoHS	Air Core Inductor, Square, 300 nH, 3.7 A, 2222SQ, ± 5%, 0.0138 ohm, 720 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2287156 2287156RL in Re-reel	1+ HK$22.12 250+ HK$15.54 500+ HK$10.86 1000+ HK$10.12	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	300nH	3.7A	2222SQ	± 5%	0.0138ohm	720MHz	11.94mm	5.72mm	5.69mm

132-11SMGLB	2286964RL Data Sheet + RoHS	Air Core Inductor, 130 nH, 3 A, Maxi Spring, ± 2%, 0.02 ohm, 900 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2286964RL 2286964 in Cut Tape	1+ HK$23.35 250+ HK$16.44 500+ HK$11.51 800+ HK$10.69	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	130nH	3A	Maxi Spring	± 2%	0.02ohm	900MHz	10.55mm	6.1mm	5.97mm

132-11SMGLB	2286964 Data Sheet + RoHS	Air Core Inductor, 130 nH, 3 A, Maxi Spring, ± 2%, 0.02 ohm, 900 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2286964 2286964RL in Re-reel	1+ HK$23.35 250+ HK$16.44 500+ HK$11.51 800+ HK$10.69	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	130nH	3A	Maxi Spring	± 2%	0.02ohm	900MHz	10.55mm	6.1mm	5.97mm

2222SQ-181JEC	2287153 Data Sheet + RoHS	Air Core Inductor, Square, 180 nH, 5 A, 2222SQ, ± 5%, 0.0095 ohm, 1.1 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2287153 2287153RL in Re-reel	1+ HK$19.08 250+ HK$13.40 500+ HK$9.38 1000+ HK$8.72	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	180nH	5A	2222SQ	± 5%	0.0095ohm	1.1GHz	8.19mm	5.59mm	5.69mm

B06TGLC	2287179RL Data Sheet + RoHS	Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 2%, 0.0045 ohm, 2.2 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2287179RL 2287179 in Cut Tape	1+ HK$21.54 250+ HK$15.13 500+ HK$10.61 1000+ HK$9.87	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	17.5nH	4A	Mini Spring	± 2%	0.0045ohm	2.2GHz	6.86mm	2.79mm	3.15mm

2222SQ-301JEC	2287156RL Data Sheet + RoHS	Air Core Inductor, Square, 300 nH, 3.7 A, 2222SQ, ± 5%, 0.0138 ohm, 720 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2287156RL 2287156 in Cut Tape	1+ HK$22.12 250+ HK$15.54 500+ HK$10.86 1000+ HK$10.12	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	300nH	3.7A	2222SQ	± 5%	0.0138ohm	720MHz	11.94mm	5.72mm	5.69mm

132-20SMGLB	2286975RL Data Sheet + RoHS	Air Core Inductor, 538 nH, 2 A, Maxi Spring, ± 2%, 0.09 ohm, 490 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2286975RL 2286975 in Cut Tape	1+ HK$23.35 250+ HK$16.44 500+ HK$11.51 800+ HK$10.69	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	538nH	2A	Maxi Spring	± 2%	0.09ohm	490MHz	10.55mm	6.1mm	5.97mm

1212VS-22NMEB	2343762RL Data Sheet + RoHS	Air Core Inductor, High Current, 22 nH, 57 A, 1212VS, ± 20%, 550 µohm, 918 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2343762RL 2343762 in Cut Tape	50+ HK$16.85	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	22nH	57A	1212VS	± 20%	550µohm	918MHz	12mm	11.5mm	6.6mm

744914122	3812931 Data Sheet + RoHS	Air Core Inductor, 22 nH, 4 A, WE-CAIR, ± 5%, 0.0052 ohm, 2.1 GHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:3812931 3812931RL in Re-reel	1+ HK$7.55 50+ HK$6.85 100+ HK$6.27 250+ HK$5.69	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	22nH	4A	WE-CAIR	± 5%	0.0052ohm	2.1GHz	6.86mm	3.05mm	3.18mm

744914122	3812931RL Data Sheet + RoHS	Air Core Inductor, 22 nH, 4 A, WE-CAIR, ± 5%, 0.0052 ohm, 2.1 GHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:3812931RL 3812931 in Cut Tape	100+ HK$6.27 250+ HK$5.69	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	22nH	4A	WE-CAIR	± 5%	0.0052ohm	2.1GHz	6.86mm	3.05mm	3.18mm

744914143G	4066053 Data Sheet + RoHS	Air Core Inductor, 43 nH, 4 A, WE-CAIR Series, ± 2%, 0.0079 ohm, 1.2 GHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ HK$7.70 10+ HK$6.80 50+ HK$6.05 100+ HK$5.41 200+ HK$4.72 500+ HK$4.63 2500+ HK$4.54 5000+ HK$4.44 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	43nH	4A	WE-CAIR Series	± 2%	0.0079ohm	1.2GHz	6.86mm	3.05mm	3.18mm

744914143G	4066053RL Data Sheet + RoHS	Air Core Inductor, 43 nH, 4 A, WE-CAIR Series, ± 2%, 0.0079 ohm, 1.2 GHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	100+ HK$5.41 200+ HK$4.72 500+ HK$4.63 2500+ HK$4.54 5000+ HK$4.44	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	-	-	-	-	-	-	-	-	-

1812SMS-39NGLC	2287119 Data Sheet + RoHS	Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 2%, 0.0044 ohm, 2.1 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2287119 2287119RL in Re-reel	1+ HK$22.77 250+ HK$16.03 500+ HK$11.18 1000+ HK$10.36	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	39nH	3A	Midi Spring	± 2%	0.0044ohm	2.1GHz	4.95mm	3.56mm	4.2mm

1812SMS-39NGLC	2287119RL Data Sheet + RoHS	Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 2%, 0.0044 ohm, 2.1 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2287119RL 2287119 in Cut Tape	1+ HK$22.77 250+ HK$16.03 500+ HK$11.18 1000+ HK$10.36	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	39nH	3A	Midi Spring	± 2%	0.0044ohm	2.1GHz	4.95mm	3.56mm	4.2mm

0806SQ-5N5GLC	2286585 Data Sheet + RoHS	Air Core Inductor, Square, 5.5 nH, 2.9 A, 0806SQ Series, ± 2%, 0.0034 ohm, 4.9 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2286585 2286585RL in Re-reel	5+ HK$16.61 500+ HK$12.75 2000+ HK$10.77	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	5.5nH	2.9A	0806SQ Series	± 2%	0.0034ohm	4.9GHz	1.346mm	1.829mm	1.397mm

0806SQ-6N0GLB	2286586 Data Sheet + RoHS	Air Core Inductor, Square, 6 nH, 2.9 A, 0806SQ Series, ± 2%, 0.006 ohm, 5.2 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2286586 2286586RL in Re-reel	5+ HK$16.53 500+ HK$11.51 1000+ HK$10.69 2000+ HK$10.48	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	6nH	2.9A	0806SQ Series	± 2%	0.006ohm	5.2GHz	1.295mm	1.829mm	1.397mm

0807SQ-6N9GLC	2286587 Data Sheet + RoHS	Air Core Inductor, Square, 6.9 nH, 2.7 A, 0807SQ Series, ± 2%, 0.006 ohm, 4.6 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2286587 2286587RL in Re-reel	5+ HK$16.61 500+ HK$12.75 2000+ HK$10.77	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	6.9nH	2.7A	0807SQ Series	± 2%	0.006ohm	4.6GHz	1.295mm	1.829mm	1.524mm

744912210	2431632 Data Sheet + RoHS	Air Core Inductor, 100 nH, 1.7 A, WE-CAIR, ± 5%, 0.0123 ohm, 1.2 GHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2431632 2431632RL in Re-reel	1+ HK$9.29 50+ HK$8.39 250+ HK$7.67 500+ HK$6.57 1000+ HK$5.41 2000+ HK$5.40 More Pricing...	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	100nH	1.7A	WE-CAIR	± 5%	0.0123ohm	1.2GHz	4.83mm	3.81mm	4.2mm

0806SQ-5N5GLC	2286585RL Data Sheet + RoHS	Air Core Inductor, Square, 5.5 nH, 2.9 A, 0806SQ Series, ± 2%, 0.0034 ohm, 4.9 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2286585RL 2286585 in Cut Tape	5+ HK$16.61 500+ HK$12.75 2000+ HK$10.77	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	5.5nH	2.9A	0806SQ Series	± 2%	0.0034ohm	4.9GHz	1.346mm	1.829mm	1.397mm