BL p (Part Number) Part Numbering Chip Ferrite Bead BL M 18 AG 102 q w e r t N S 1 D y u i o tImpedance Expressed by three figures. The unit is in ohm (Ω) at 100MHz. The first and second figures are significant digits, and the third figure expresses the number of zeros which follow the two figures. qProduct ID Product ID BL Chip Ferrite Beads Code Type wType yElectrode Expressed by a letter. A Array Type M Ferrite Bead Single Type Ex.) eDimensions (LgW) Code Electrode S/T Sn Plating A Au Plating Code Dimensions (LgW) EIA 02 0.4g0.2mm 01005 uCategory 03 0.6g0.3mm 0201 Code Category N Standard Type 15 1.0g0.5mm 0402 18 1.6g0.8mm 0603 2A 2.0g1.0mm 0804 Code 21 2.0g1.25mm 0805 1 1 Circuit 31 3.2g1.6mm 1206 4 4 Circuits 41 4.5g1.6mm 1806 iNumber of Circuits Number of Circuits rCharacteristics/Applications Code *1 AG AX Series Characteristics/Applications BLM03/15/18/21, BLA2A/31 for General Use BLM02/03/15 TG BLM18 BA BLM15/18 BB BLM03/15/18/21, BLA2A BC for High-speed Signal Lines BLM03/15 BD BLM03/15/18/21, BLA2A/31 BX BLM15 PD PG BLM15 for Power Supplies PX KG SG BLM03/15/18/21/31/41 BLM03/15 for Power Supplies (Low DC Resistance Type) BLM18 RK for Digital Interface HG for GHz Band General Use EB for GHz Band High-speed Signal Lines (Low Direct Current Type) BLM03 EG for GHz Band General Use (Low DC Resistance Type) BLM15/18 HB HD BLM18/21 BLM03/15/18 BLM03/15/18 for GHz Band High-speed Signal Lines HE BLM03/15/18 BLM18 HK for GHz Band Digital Interface BLM18 GA for High-GHz Band High-speed Signal Lines BLM15 GG for High-GHz Band General Use BLM15/18 *1 Frequency characteristics vary with each code. oPackaging Code Packaging K Embossed Taping (ø330mm Reel) L Embossed Taping (ø180mm Reel) Series BLM21 *1/31/41 B Bulk J Paper Taping (ø330mm Reel) BLM03/15/18 *3/21 *2, BLA2A/31 D Paper Taping (ø180mm Reel) BLM02/03/15/18/21 *2, BLA2A/31 *1 BLM21BD222SN1/BLM21BD272SN1 only. All Series *2 Except BLM21BD222SN1/BLM21BD272SN1 *3 Except BLM18T