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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2222SQ-181JEC
2222SQ-181JEC - Air Core Inductor, Square, 180 nH, 5 A, 2222SQ, ± 5%, 0.0095 ohm, 1.1 GHz

2287153RL

Air Core Inductor, Square, 180 nH, 5 A, 2222SQ, ± 5%, 0.0095 ohm, 1.1 GHz

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180nH 5A 2222SQ ± 5% 0.0095ohm 1.1GHz 8.19mm 5.59mm 5.69mm
2222SQ-301JEC
2222SQ-301JEC - Air Core Inductor, Square, 300 nH, 3.7 A, 2222SQ, ± 5%, 0.0138 ohm, 720 MHz

2287156

Air Core Inductor, Square, 300 nH, 3.7 A, 2222SQ, ± 5%, 0.0138 ohm, 720 MHz

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300nH 3.7A 2222SQ ± 5% 0.0138ohm 720MHz 11.94mm 5.72mm 5.69mm
2222SQ-181JEC
2222SQ-181JEC - Air Core Inductor, Square, 180 nH, 5 A, 2222SQ, ± 5%, 0.0095 ohm, 1.1 GHz

2287153

Air Core Inductor, Square, 180 nH, 5 A, 2222SQ, ± 5%, 0.0095 ohm, 1.1 GHz

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180nH 5A 2222SQ ± 5% 0.0095ohm 1.1GHz 8.19mm 5.59mm 5.69mm
2222SQ-301JEC
2222SQ-301JEC - Air Core Inductor, Square, 300 nH, 3.7 A, 2222SQ, ± 5%, 0.0138 ohm, 720 MHz

2287156RL

Air Core Inductor, Square, 300 nH, 3.7 A, 2222SQ, ± 5%, 0.0138 ohm, 720 MHz

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300nH 3.7A 2222SQ ± 5% 0.0138ohm 720MHz 11.94mm 5.72mm 5.69mm
0806SQ-5N5GLC
0806SQ-5N5GLC - Air Core Inductor, Square, 5.5 nH, 2.9 A, 0806SQ Series, ± 2%, 0.0034 ohm, 4.9 GHz

2286585

Air Core Inductor, Square, 5.5 nH, 2.9 A, 0806SQ Series, ± 2%, 0.0034 ohm, 4.9 GHz

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5.5nH 2.9A 0806SQ Series ± 2% 0.0034ohm 4.9GHz 1.346mm 1.829mm 1.397mm
0806SQ-6N0GLB
0806SQ-6N0GLB - Air Core Inductor, Square, 6 nH, 2.9 A, 0806SQ Series, ± 2%, 0.006 ohm, 5.2 GHz

2286586

Air Core Inductor, Square, 6 nH, 2.9 A, 0806SQ Series, ± 2%, 0.006 ohm, 5.2 GHz

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6nH 2.9A 0806SQ Series ± 2% 0.006ohm 5.2GHz 1.295mm 1.829mm 1.397mm
0807SQ-6N9GLC
0807SQ-6N9GLC - Air Core Inductor, Square, 6.9 nH, 2.7 A, 0807SQ Series, ± 2%, 0.006 ohm, 4.6 GHz

2286587

Air Core Inductor, Square, 6.9 nH, 2.7 A, 0807SQ Series, ± 2%, 0.006 ohm, 4.6 GHz

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6.9nH 2.7A 0807SQ Series ± 2% 0.006ohm 4.6GHz 1.295mm 1.829mm 1.524mm
744912210
744912210 - Air Core Inductor, 100 nH, 1.7 A, WE-CAIR, ± 5%, 0.0123 ohm, 1.2 GHz

2431632

Air Core Inductor, 100 nH, 1.7 A, WE-CAIR, ± 5%, 0.0123 ohm, 1.2 GHz

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100nH 1.7A WE-CAIR ± 5% 0.0123ohm 1.2GHz 4.83mm 3.81mm 4.2mm
0806SQ-5N5GLC
0806SQ-5N5GLC - Air Core Inductor, Square, 5.5 nH, 2.9 A, 0806SQ Series, ± 2%, 0.0034 ohm, 4.9 GHz

2286585RL

Air Core Inductor, Square, 5.5 nH, 2.9 A, 0806SQ Series, ± 2%, 0.0034 ohm, 4.9 GHz

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5.5nH 2.9A 0806SQ Series ± 2% 0.0034ohm 4.9GHz 1.346mm 1.829mm 1.397mm
1812SMS-39NJLC
1812SMS-39NJLC - Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 5%, 0.0044 ohm, 2.1 GHz

2287131

Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 5%, 0.0044 ohm, 2.1 GHz

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39nH 3A Midi Spring ± 5% 0.0044ohm 2.1GHz 4.95mm 3.56mm 4.2mm
1111SQ-27NJEC
1111SQ-27NJEC - Air Core Inductor, Square, 27 nH, 5.5 A, 1111SQ, ± 5%, 0.0081 ohm, 2.6 GHz

2343731

Air Core Inductor, Square, 27 nH, 5.5 A, 1111SQ, ± 5%, 0.0081 ohm, 2.6 GHz

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27nH 5.5A 1111SQ ± 5% 0.0081ohm 2.6GHz 2.67mm 2.67mm 2.79mm
B06TJLC
B06TJLC - Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 5%, 0.0045 ohm, 2.2 GHz

2287185

Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 5%, 0.0045 ohm, 2.2 GHz

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17.5nH 4A Mini Spring ± 5% 0.0045ohm 2.2GHz 6.86mm 2.79mm 3.15mm
744913080
744913080 - Air Core Inductor, 8 nH, 4 A, WE-CAIR, ± 5%, 0.0026 ohm, 5 GHz

3517140

Air Core Inductor, 8 nH, 4 A, WE-CAIR, ± 5%, 0.0026 ohm, 5 GHz

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8nH 4A WE-CAIR ± 5% 0.0026ohm 5GHz 3.68mm 3.05mm 3.18mm
0806SQ-16NGLC
0806SQ-16NGLC - Air Core Inductor, Square, 15.7 nH, 2.9 A, 0806SQ Series, ± 2%, 0.009 ohm, 4.4 GHz

2286597RL

Air Core Inductor, Square, 15.7 nH, 2.9 A, 0806SQ Series, ± 2%, 0.009 ohm, 4.4 GHz

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15.7nH 2.9A 0806SQ Series ± 2% 0.009ohm 4.4GHz 2.286mm 1.829mm 1.397mm
0806SQ-6N0GLB
0806SQ-6N0GLB - Air Core Inductor, Square, 6 nH, 2.9 A, 0806SQ Series, ± 2%, 0.006 ohm, 5.2 GHz

2286586RL

Air Core Inductor, Square, 6 nH, 2.9 A, 0806SQ Series, ± 2%, 0.006 ohm, 5.2 GHz

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6nH 2.9A 0806SQ Series ± 2% 0.006ohm 5.2GHz 1.295mm 1.829mm 1.397mm
7449150146
7449150146 - Air Core Inductor, 146 nH, 19 A, WE-ACHC, ± 20%, 0.00333 ohm, 332 MHz

2777661

Air Core Inductor, 146 nH, 19 A, WE-ACHC, ± 20%, 0.00333 ohm, 332 MHz

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146nH 19A WE-ACHC ± 20% 0.00333ohm 332MHz 10mm 10mm 6.5mm
0807SQ-6N9GLC
0807SQ-6N9GLC - Air Core Inductor, Square, 6.9 nH, 2.7 A, 0807SQ Series, ± 2%, 0.006 ohm, 4.6 GHz

2286587RL

Air Core Inductor, Square, 6.9 nH, 2.7 A, 0807SQ Series, ± 2%, 0.006 ohm, 4.6 GHz

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6.9nH 2.7A 0807SQ Series ± 2% 0.006ohm 4.6GHz 1.295mm 1.829mm 1.524mm
0806SQ-16NGLC
0806SQ-16NGLC - Air Core Inductor, Square, 15.7 nH, 2.9 A, 0806SQ Series, ± 2%, 0.009 ohm, 4.4 GHz

2286597

Air Core Inductor, Square, 15.7 nH, 2.9 A, 0806SQ Series, ± 2%, 0.009 ohm, 4.4 GHz

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15.7nH 2.9A 0806SQ Series ± 2% 0.009ohm 4.4GHz 2.286mm 1.829mm 1.397mm
744912210
744912210 - Air Core Inductor, 100 nH, 1.7 A, WE-CAIR, ± 5%, 0.0123 ohm, 1.2 GHz

2431632RL

Air Core Inductor, 100 nH, 1.7 A, WE-CAIR, ± 5%, 0.0123 ohm, 1.2 GHz

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100nH 1.7A WE-CAIR ± 5% 0.0123ohm 1.2GHz 4.83mm 3.81mm 4.2mm
744912156
744912156 - Air Core Inductor, 56 nH, 3 A, WE-CAIR, ± 5%, 0.0062 ohm, 1.5 GHz

2431629

Air Core Inductor, 56 nH, 3 A, WE-CAIR, ± 5%, 0.0062 ohm, 1.5 GHz

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56nH 3A WE-CAIR ± 5% 0.0062ohm 1.5GHz 4.83mm 3.81mm 4.2mm
B07TJLC
B07TJLC - Air Core Inductor, 22 nH, 4 A, Mini Spring, ± 5%, 0.0052 ohm, 2.1 GHz

2287186

Air Core Inductor, 22 nH, 4 A, Mini Spring, ± 5%, 0.0052 ohm, 2.1 GHz

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22nH 4A Mini Spring ± 5% 0.0052ohm 2.1GHz 6.86mm 2.79mm 3.15mm
1212VS-66NMEB
1212VS-66NMEB - Air Core Inductor, High Current, 66 nH, 48 A, 1212VS, ± 20%, 990 µohm, 480 MHz

2343766

Air Core Inductor, High Current, 66 nH, 48 A, 1212VS, ± 20%, 990 µohm, 480 MHz

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66nH 48A 1212VS ± 20% 990µohm 480MHz 12mm 11.5mm 8.8mm
1812SMS-39NJLC
1812SMS-39NJLC - Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 5%, 0.0044 ohm, 2.1 GHz

2287131RL

Air Core Inductor, 39 nH, 3 A, Midi Spring, ± 5%, 0.0044 ohm, 2.1 GHz

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39nH 3A Midi Spring ± 5% 0.0044ohm 2.1GHz 4.95mm 3.56mm 4.2mm
B06TJLC
B06TJLC - Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 5%, 0.0045 ohm, 2.2 GHz

2287185RL

Air Core Inductor, 17.5 nH, 4 A, Mini Spring, ± 5%, 0.0045 ohm, 2.2 GHz

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17.5nH 4A Mini Spring ± 5% 0.0045ohm 2.2GHz 6.86mm 2.79mm 3.15mm
A04TJLC
A04TJLC - Air Core Inductor, 12.5 nH, 4 A, Mini Spring, ± 5%, 0.0034 ohm, 3.3 GHz

2287176RL

Air Core Inductor, 12.5 nH, 4 A, Mini Spring, ± 5%, 0.0034 ohm, 3.3 GHz

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12.5nH 4A Mini Spring ± 5% 0.0034ohm 3.3GHz 3.94mm 4.45mm 3.15mm