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 (Incl GST)	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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1515SQ-68NGEC	2286990 Data Sheet + RoHS	Air Core Inductor, Square, 68 nH, 5.5 A, 1515SQ, ± 2%, 0.0086 ohm, 2.13 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape Packaging Options Suggested replacement for:2286990 2286990RL in Re-reel	1+ $5.15 ($5.67) 250+ $3.61 ($3.97) 500+ $2.53 ($2.78) 1000+ $2.35 ($2.59)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	68nH	5.5A	1515SQ	± 2%	0.0086ohm	2.13GHz	5.33mm	3.56mm	3.73mm
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+ $5.57 ($6.13) 150+ $3.92 ($4.31) 450+ $2.74 ($3.01) 900+ $2.54 ($2.79)	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+ $4.60 ($5.06) 10+ $2.79 ($3.07) 50+ $1.80 ($1.98) 200+ $1.79 ($1.97) 250+ $3.24 ($3.56) 500+ $2.27 ($2.50) 800+ $2.11 ($2.32) More Pricing...	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+ $5.30 ($5.83) 150+ $3.92 ($4.31) 450+ $2.74 ($3.01) 900+ $2.54 ($2.79)	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
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+ $4.24 ($4.66) 250+ $2.83 ($3.11) 500+ $2.09 ($2.30) 1000+ $1.94 ($2.13)	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

1515SQ-68NGEC	2286990RL Data Sheet + RoHS	Air Core Inductor, Square, 68 nH, 5.5 A, 1515SQ, ± 2%, 0.0086 ohm, 2.13 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Re-reel Packaging Options Suggested replacement for:2286990RL 2286990 in Cut Tape	1+ $5.15 ($5.67) 250+ $3.61 ($3.97) 500+ $2.53 ($2.78) 1000+ $2.35 ($2.59)	Restricted Item Minimum order of 100 items Multiples of 1 only Please enter a valid quantity Add Min: 100 Mult: 1	68nH	5.5A	1515SQ	± 2%	0.0086ohm	2.13GHz	5.33mm	3.56mm	3.73mm

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+ $4.24 ($4.66) 250+ $2.83 ($3.11) 500+ $2.09 ($2.30) 1000+ $1.94 ($2.13)	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

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	50+ $1.80 ($1.98) 200+ $1.79 ($1.97) 250+ $3.24 ($3.56) 500+ $2.27 ($2.50) 800+ $2.11 ($2.32)	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

1515SQ-68NGEC	228699002 Data Sheet + RoHS	Air Core Inductor, Square, 68 nH, 5.5 A, 1515SQ, ± 2%, 0.0086 ohm, 2.13 GHz COILCRAFT You previously purchased this product. View in Order History	Each (Supplied on Cut Tape) Cut Tape	1+ $2.57 ($2.83)	Restricted Item Minimum order of 1 items Multiples of 1 only Please enter a valid quantity Add Min: 1 Mult: 1	68nH	5.5A	1515SQ	± 2%	0.0086ohm	2.13GHz	5.33mm	3.56mm	3.73mm

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+ $4.49 ($4.94) 250+ $3.00 ($3.30) 500+ $2.20 ($2.42) 1000+ $2.04 ($2.24)	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+ $4.49 ($4.94) 250+ $3.00 ($3.30) 500+ $2.20 ($2.42) 1000+ $2.04 ($2.24)	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+ $3.21 ($3.53) 50+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $1.85 ($2.04) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30) More Pricing...	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+ $3.21 ($3.53) 50+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $2.47 ($2.72) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30) More Pricing...	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+ $3.64 ($4.00) 50+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $1.85 ($2.04) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30) More Pricing...	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+ $1.80 ($1.98) 50+ $1.62 ($1.78) 250+ $1.49 ($1.64) 500+ $1.27 ($1.40) 1000+ $1.05 ($1.16)	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+ $3.64 ($4.00) 50+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $2.47 ($2.72) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30) More Pricing...	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	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+ $3.63 ($3.99) 250+ $2.56 ($2.82) 500+ $1.78 ($1.96) 1000+ $1.67 ($1.84)	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

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+ $3.18 ($3.50) 10+ $2.45 ($2.70) 50+ $2.01 ($2.21) 100+ $1.89 ($2.08)	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+ $3.34 ($3.67) 250+ $2.35 ($2.59)	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+ $1.47 ($1.62) 10+ $1.46 ($1.61) 50+ $1.33 ($1.46) 100+ $1.22 ($1.34) 250+ $1.11 ($1.22) 500+ $1.01 ($1.11) 1000+ $0.911 ($1.00) More Pricing...	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+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $2.47 ($2.72) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30)	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	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	50+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $1.85 ($2.04) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30)	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	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+ $2.48 ($2.73) 50+ $2.31 ($2.54) 100+ $2.06 ($2.27) 250+ $1.82 ($2.00) 600+ $1.48 ($1.63)	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	50+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $2.47 ($2.72) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30)	Restricted Item Minimum order of 100 items Multiples of 5 only Please enter a valid quantity Add Min: 100 Mult: 5	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+ $3.21 ($3.53) 50+ $2.76 ($3.04) 250+ $1.88 ($2.07) 500+ $2.47 ($2.72) 1000+ $1.81 ($1.99) 2000+ $2.09 ($2.30) More Pricing...	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