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    • Home > Coils > Air Core Coils

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    Inductors

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    Common Mode Choke

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    E-mail: fks@fks-coils.com
    Add：C2 Building, Western Cloud Valley, Fengxi New Town, Xixian New Area, Xi'an City, Shaanxi Province, China

    CAIR Air Coil

    CAIR Air Coil

    CAIR Air Coil Description:

    FKS-CAIR SMD Air Coil Inductors are especially suitable for high-frequency applications by offering high self-resonant frequency and >100 Q factor. In addition, these air coils have a low-temperature dependence, resulting in inductance stability across the entire operating range.

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    Free trial of samples
    Characteristics
    Very high quality factor >100

    High self-resonant frequency

    High currents up to 4.0 A

    Pick and place process possible

    Good solderability (tinned connector pins)

    Inductance tolerances 2%, 5 % and 10 %

    Operating temperature: -40 °C to +125 °C

    Inductance values from 1.65 nH up to 538 nH

    Ambient temperature: -40°C to +110°C (refering to IR)

    Storage temperature (on tape & reel): -10°C to +40°C; 30 to 70% RH max.

    Applications
    RF-Decoupling
    Broad band filter
    Especially for RF applications
    Ideal for high current applications
    Product Parameters
    Order Code L
    (nH)    		 Tol. L Test Condition L Qmin. Test Condition Q RDC max.
    (Ω)    		 IR
    (A)    		 fres
    (GHz)    		 Design Kit Size L
    (mm)    		 W
    (mm)    		 H
    (mm)    		 Mount
    FKS744910016 1.65 ±10% 800 MHz 100 800 MHz 4 1.6 10 74491 1322 2.21 1.42 1.37 SMT
    FKS744910025 2.55 ±5% 800 MHz 100 800 MHz 5 1.6 8.2 74491 2.21 1.42 1.37 SMT
    FKS744910038 3.85 ±5% 800 MHz 100 800 MHz 6 1.6 7.5 74491 2.21 1.42 1.37 SMT
    FKS744910054 5.45 ±5% 800 MHz 100 800 MHz 8 1.6 7 74491 2.21 1.42 1.37 SMT
    FKS744911056 5.6 ±5% 800 MHz 100 800 MHz 9 1.6 6.5 74491 1340 4.04 1.42 1.37 SMT
    FKS744911071 7.15 ±5% 800 MHz 100 800 MHz 10 1.6 6 74491 4.04 1.42 1.37 SMT
    FKS744911088 8.8 ±5% 800 MHz 100 800 MHz 12 1.6 6 74491 4.04 1.42 1.37 SMT
    FKS744911098 9.85 ±5% 800 MHz 100 800 MHz 13 1.6 5.2 – 4.04 1.42 1.37 SMT
    FKS744911112 12.55 ±5% 800 MHz 100 800 MHz 14 1.6 4.6 74491 4.04 1.42 1.37 SMT
    FKS744913025 2.5 ±5% 150 MHz 140 150 MHz 1.1 4 12.5 74491 3136 3.68 3.05 3.18 SMT
    FKS744913050 5 ±5% 150 MHz 140 150 MHz 1.8 4 6.5 74491 3.68 3.05 3.18 SMT
    FKS744913050G 5 ±2% 150 MHz 140 150 MHz 1.8 4 6.5 – 3.68 3.05 3.18 SMT
    FKS744913080 8 ±5% 150 MHz 140 150 MHz 2.6 4 5 74491 3.68 3.05 3.18 SMT
    FKS744913080G 8 ±2% 150 MHz 140 150 MHz 2.6 4 5 – 3.68 3.05 3.18 SMT
    FKS744913112 12.5 ±5% 150 MHz 137 150 MHz 3.4 4 3.3 74491 3.68 3.05 3.18 SMT
    FKS744913112G 12.5 ±2% 150 MHz 137 150 MHz 3.4 4 3.3 – 3.68 3.05 3.18 SMT
    FKS744913118 18.5 ±5% 150 MHz 132 150 MHz 3.9 4 2.5 74491 3.68 3.05 3.18 SMT
    FKS744913118G 18.5 ±2% 150 MHz 132 150 MHz 3.9 4 2.5 – 3.68 3.05 3.18 SMT
    FKS744914117 17.5 ±5% 150 MHz 100 150 MHz 4.5 4 2.2 74491 3168 6.68 3.05 3.18 SMT
    FKS744914117G 17.5 ±2% 150 MHz 100 150 MHz 4.5 4 2.2 – 6.68 3.05 3.18 SMT
    FKS744914122 22 ±5% 150 MHz 102 150 MHz 5.2 4 2.1 74491 6.68 3.05 3.18 SMT
    FKS744914122G 22 ±2% 150 MHz 102 150 MHz 5.2 4 2.1 – 6.68 3.05 3.18 SMT
    FKS744914128 28 ±5% 150 MHz 105 150 MHz 6 4 1.8 74491 6.68 3.05 3.18 SMT
    FKS744914128G 28 ±2% 150 MHz 105 150 MHz 6 4 1.8 – 6.68 3.05 3.18 SMT
    FKS744914135 35.5 ±5% 150 MHz 112 150 MHz 6.8 4 1.5 74491 6.68 3.05 3.18 SMT
    FKS744914135G 35.5 ±2% 150 MHz 112 150 MHz 6.8 4 1.5 – 6.68 3.05 3.18 SMT
    FKS744914143 43 ±5% 150 MHz 106 150 MHz 7.9 4 1.2 74491 6.68 3.05 3.18 SMT
    FKS744914143G 43 ±2% 150 MHz 106 150 MHz 7.9 4 1.2 – 6.68 3.05 3.18 SMT
    FKS744912122 22 ±5% 150 MHz 100 150 MHz 4.2 3 3.2 74491 4248 4.83 3.81 4.2 SMT
    FKS744912122G 22 ±2% 150 MHz 100 150 MHz 4.2 3 3.2 – 4.83 3.81 4.2 SMT
    FKS744912127 27 ±5% 150 MHz 100 150 MHz 4 3.5 2.7 74491 4.83 3.81 4.2 SMT
    FKS744912127G 27 ±2% 150 MHz 100 150 MHz 4 3.5 2.7 – 4.83 3.81 4.2 SMT
    FKS744912133 33 ±5% 150 MHz 100 150 MHz 4.8 3 2.5 74491 4.83 3.81 4.2 SMT
    FKS744912133G 33 ±2% 150 MHz 100 150 MHz 4.8 3 2.5 – 4.83 3.81 4.2 SMT
    FKS744912139 39 ±5% 150 MHz 100 150 MHz 4.4 3 2.1 74491 4.83 3.81 4.2 SMT
    FKS744912139G 39 ±2% 150 MHz 100 150 MHz 4.4 3 2.1 – 4.83 3.81 4.2 SMT
    FKS744912147 47 ±5% 150 MHz 100 150 MHz 5.6 3 2.1 74491 4.83 3.81 4.2 SMT
    FKS744912147G 47 ±2% 150 MHz 100 150 MHz 5.6 3 2.1 – 4.83 3.81 4.2 SMT
    FKS744912156 56 ±5% 150 MHz 100 150 MHz 6.2 3 1.5 74491 4.83 3.81 4.2 SMT
    FKS744912156G 56 ±2% 150 MHz 100 150 MHz 6.2 3 1.5 – 4.83 3.81 4.2 SMT
    FKS744912168 68 ±5% 150 MHz 100 150 MHz 8.2 2.5 1.5 74491 4.83 3.81 4.2 SMT
    FKS744912168G 68 ±2% 150 MHz 100 150 MHz 8.2 2.5 1.5 – 4.83 3.81 4.2 SMT
    FKS744912182 82 ±5% 150 MHz 100 150 MHz 9.4 2.5 1.3 74491 4.83 3.81 4.2 SMT
    FKS744912182G 82 ±2% 150 MHz 100 150 MHz 9.4 2.5 1.3 – 4.83 3.81 4.2 SMT
    FKS744912210 100 ±5% 150 MHz 100 150 MHz 12.3 1.7 1.2 74491 4.83 3.81 4.2 SMT
    FKS744912210G 100 ±2% 150 MHz 100 150 MHz 12.3 1.7 1.2 – 4.83 3.81 4.2 SMT
    FKS744912212 120 ±5% 150 MHz 100 150 MHz 17.3 1.5 1.1 74491 4.83 3.81 4.2 SMT
    FKS744912212G 120 ±2% 150 MHz 100 150 MHz 17.3 1.5 1.1 – 4.83 3.81 4.2 SMT
    FKS744918190 90 ±5% 50 MHz 100 50 MHz 15 3.5 1.14 – 5910 10.55 6.35 5.9 SMT
    FKS744918211 111 ±5% 50 MHz 100 50 MHz 15 3.5 1.02 – 10.55 6.35 5.9 SMT
    FKS744918213 130 ±5% 50 MHz 100 50 MHz 20 3 0.9 – 10.55 6.35 5.9 SMT
    FKS744918217 169 ±5% 50 MHz 100 50 MHz 25 3 0.875 – 10.55 6.35 5.9 SMT
    FKS744918220 206 ±5% 50 MHz 100 50 MHz 30 3 0.8 – 10.55 6.35 5.9 SMT
    FKS744918222 222 ±5% 50 MHz 100 50 MHz 35 3 0.73 – 10.55 6.35 5.9 SMT
    FKS744918224 246 ±5% 50 MHz 100 50 MHz 35 3 0.685 – 10.55 6.35 5.9 SMT
    FKS744918230 307 ±5% 50 MHz 100 50 MHz 35 3 0.66 – 10.55 6.35 5.9 SMT
    FKS744918238 380 ±5% 50 MHz 100 50 MHz 50 2.5 0.59 – 10.55 6.35 5.9 SMT
    FKS744918242 422 ±5% 50 MHz 100 50 MHz 60 2.5 0.54 – 10.55 6.35 5.9 SMT
    FKS744918249 491 ±5% 50 MHz 100 50 MHz 65 2 0.535 – 10.55 6.35 5.9 SMT
    FKS744918254 538 ±5% 50 MHz 100 50 MHz 90 2 0.49 – 10.55 6.35 5.9 SMT
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