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    Main application area Frequency range Specific
    application
    Material Initial
    perme
    ability
    B max (mT) Available core shapes
    Broadband
    transformers,
    Line Filter,
    ISDN transformers,
    Digital data
    transformers (xDSL),
    Current-compensated
    interference,
    Suppression Chokes
    0.1~2 HM1A 3500 470 Toroid,
    ESQ, USQ, UU, EE
    0.1~1.0 Line Filter,
    Current- compensated
    chokes
    HM2A 5500 430
    HM3A 7000 430
    Pulse transformers
    Line Filter
    impedance
    matching
    transformers
    HM5A 10000 410 Toroid, UU, EER, RM,
    EE
    HM6A 12000 400
    HM7 15000 380
    BM30 3500 525
    Power Transformers for LCD, LED
    Transformers for DC/DC Converter,
    Transformers for General puprose
    up to 200 High voltage
    transformers,
    Power conversion
    Low loss
    PM7 2400 480 E, EER, ETD,
    UTV, EFD, EQ, Toroid,
    EP, RM, UU,
    PM11 2400 520
    PM12 3200 530
    PM12L 2800 530
    PM15 2500 530
    PM15H 2300 530
    BM14 1600 530
    BM20 2000 560
    High frequency
    power conversion,
    General purpose
    transformer
    up to 400 Transformers for
    DC-DC converters,
    particularly
    resonance
    converters
    FM4 2000 490 EFD, EPC, EER,
    RM low profile,
    Planar
    0.5~2.0 Transformers for
    DC-DC converters,
    particularly
    resonance
    converters
    FM10 1300 526
    Proximity switches Filter for telecom application <0.2 QM23 2300 410 RM, EP