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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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+ RM11.34 250+ RM7.97 500+ RM5.57 1000+ RM5.18	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-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+ RM11.34 250+ RM7.97 500+ RM5.57 1000+ RM5.18	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
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+ RM9.87 500+ RM7.58 2000+ RM6.41	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+ RM9.87 500+ RM7.58 2000+ RM6.41	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+ RM9.87 500+ RM7.58 2000+ RM6.41	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+ RM5.53 50+ RM4.99 250+ RM4.56 500+ RM3.91	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+ RM9.87 500+ RM7.58 2000+ RM6.41	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

1812SMS-39NJLC	2287131 Data Sheet + RoHS	Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 5%, 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:2287131 2287131RL in Re-reel	1+ RM10.95 250+ RM7.72 500+ RM5.38 1000+ RM5.04	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	± 5%	0.0044ohm	2.1GHz	4.95mm	3.56mm	4.2mm

1606-8JLC	2285541RL Data Sheet + RoHS	Air Core Inductor, 8.8 nH, 1.6 A, Micro Spring, ± 5%, 0.012 ohm, 6 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2285541RL 2285541 in Cut Tape	1+ RM8.80 250+ RM6.16 500+ RM4.30 1000+ RM4.00	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	8.8nH	1.6A	Micro Spring	± 5%	0.012ohm	6GHz	4.19mm	3.43mm	1.58mm

1111SQ-27NJEC	2343731 Data Sheet + RoHS	Air Core Inductor, Square, 27 nH, 5.5 A, 1111SQ, ± 5%, 0.0081 ohm, 2.6 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2343731 2343731RL in Re-reel	1+ RM9.65 10+ RM7.70 50+ RM6.21 100+ RM5.82	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	27nH	5.5A	1111SQ	± 5%	0.0081ohm	2.6GHz	2.67mm	2.67mm	2.79mm

B06TJLC	2287185 Data Sheet + RoHS	Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 5%, 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:2287185 2287185RL in Re-reel 2299840 in Full Reel	1+ RM10.03 250+ RM7.04	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	± 5%	0.0045ohm	2.2GHz	6.86mm	2.79mm	3.15mm

744913080	3517140 Data Sheet + RoHS	Air Core Inductor, 8 nH, 4 A, WE-CAIR, ± 5%, 0.0026 ohm, 5 GHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:3517140 3517140RL in Re-reel	1+ RM4.50 10+ RM4.48 50+ RM4.09 100+ RM3.74 250+ RM3.39	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8nH	4A	WE-CAIR	± 5%	0.0026ohm	5GHz	3.68mm	3.05mm	3.18mm

0806SQ-16NGLC	2286597RL Data Sheet + RoHS	Air Core Inductor, Square, 15.7 nH, 2.9 A, 0806SQ Series, ± 2%, 0.009 ohm, 4.4 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2286597RL 2286597 in Cut Tape	50+ RM8.72 250+ RM7.04 500+ RM6.59	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	15.7nH	2.9A	0806SQ Series	± 2%	0.009ohm	4.4GHz	2.286mm	1.829mm	1.397mm

0806SQ-6N0GLB	2286586RL 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) Re-reel Packaging Options Suggested replacement for:2286586RL 2286586 in Cut Tape	5+ RM9.87 500+ RM7.58 2000+ RM6.41	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	6nH	2.9A	0806SQ Series	± 2%	0.006ohm	5.2GHz	1.295mm	1.829mm	1.397mm

7449150146	2777661 Data Sheet + RoHS	Air Core Inductor, 146 nH, 19 A, WE-ACHC, ± 20%, 0.00333 ohm, 332 MHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each	1+ RM7.88 50+ RM7.33 100+ RM6.55 250+ RM5.77	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	146nH	19A	WE-ACHC	± 20%	0.00333ohm	332MHz	10mm	10mm	6.5mm

0807SQ-6N9GLC	2286587RL 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) Re-reel Packaging Options Suggested replacement for:2286587RL 2286587 in Cut Tape	5+ RM9.87 500+ RM7.58 2000+ RM6.41	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	6.9nH	2.7A	0807SQ Series	± 2%	0.006ohm	4.6GHz	1.295mm	1.829mm	1.524mm

0806SQ-16NGLC	2286597 Data Sheet + RoHS	Air Core Inductor, Square, 15.7 nH, 2.9 A, 0806SQ Series, ± 2%, 0.009 ohm, 4.4 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2286597 2286597RL in Re-reel	5+ RM10.93 50+ RM8.72 250+ RM7.04 500+ RM6.59	Restricted Item Minimum order of 5 items Multiples of 5 only Please enter a valid quantity Add Min: 5 Mult: 5	15.7nH	2.9A	0806SQ Series	± 2%	0.009ohm	4.4GHz	2.286mm	1.829mm	1.397mm

744912210	2431632RL 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) Re-reel Packaging Options Suggested replacement for:2431632RL 2431632 in Cut Tape	50+ RM4.99 250+ RM4.56 500+ RM3.91	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	100nH	1.7A	WE-CAIR	± 5%	0.0123ohm	1.2GHz	4.83mm	3.81mm	4.2mm

744912156	2431629 Data Sheet + RoHS	Air Core Inductor, 56 nH, 3 A, WE-CAIR, ± 5%, 0.0062 ohm, 1.5 GHz WURTH ELEKTRONIK You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2431629 2431629RL in Re-reel	1+ RM6.02 50+ RM5.18 250+ RM4.56 500+ RM3.91	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	56nH	3A	WE-CAIR	± 5%	0.0062ohm	1.5GHz	4.83mm	3.81mm	4.2mm

B07TJLC	2287186 Data Sheet + RoHS	Air Core Inductor, 22 nH, 4 A, Mini Spring, ± 5%, 0.0052 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:2287186 2287186RL in Re-reel	1+ RM10.07 250+ RM7.09 500+ RM4.94 1000+ RM4.59	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	22nH	4A	Mini Spring	± 5%	0.0052ohm	2.1GHz	6.86mm	2.79mm	3.15mm

1212VS-66NMEB	2343766 Data Sheet + RoHS	Air Core Inductor, High Current, 66 nH, 48 A, 1212VS, ± 20%, 990 µohm, 480 MHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2343766 2343766RL in Re-reel	1+ RM12.75 10+ RM10.18 25+ RM8.21 50+ RM7.69	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	66nH	48A	1212VS	± 20%	990µohm	480MHz	12mm	11.5mm	8.8mm

1812SMS-39NJLC	2287131RL Data Sheet + RoHS	Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 5%, 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:2287131RL 2287131 in Cut Tape	1+ RM10.95 250+ RM7.72 500+ RM5.38 1000+ RM5.04	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	± 5%	0.0044ohm	2.1GHz	4.95mm	3.56mm	4.2mm

B06TJLC	2287185RL Data Sheet + RoHS	Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 5%, 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:2287185RL 2287185 in Cut Tape 2299840 in Full Reel	1+ RM10.03 250+ RM7.04	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	± 5%	0.0045ohm	2.2GHz	6.86mm	2.79mm	3.15mm

1606-8JLC	2285541 Data Sheet + RoHS	Air Core Inductor, 8.8 nH, 1.6 A, Micro Spring, ± 5%, 0.012 ohm, 6 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2285541 2285541RL in Re-reel	1+ RM8.80 250+ RM6.16 500+ RM4.30 1000+ RM4.00	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	8.8nH	1.6A	Micro Spring	± 5%	0.012ohm	6GHz	4.19mm	3.43mm	1.58mm

A04TJLC	2287176RL Data Sheet + RoHS	Air Core Inductor, 12.5 nH, 4 A, Mini Spring, ± 5%, 0.0034 ohm, 3.3 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2287176RL 2287176 in Cut Tape 2299831 in Full Reel	1+ RM10.07 250+ RM7.09 700+ RM5.48 4900+ RM5.43	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	12.5nH	4A	Mini Spring	± 5%	0.0034ohm	3.3GHz	3.94mm	4.45mm	3.15mm