o Part Numbering Chip Ferrite Beads (Part Number) BL M 18 AG 102 q w e r t S N 1 D y u i o tImpedance qProduct ID Expressed by three figures. The unit is in ohm (). The first and second figures are significant digits, and the third figure expresses the number of zeros which follow the two figures. Product ID BL Chip Ferrite Beads yPerformance wType Code Type A Array Type M Monolithic Type Expressed by a letter. Ex.) eDimensions (LgW) Code Performance S Sn Plating uCategory Code Dimensions (LgW) EIA Code Category 03 0.6g0.3mm 0201 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 AJ Series Characteristics/Applications BLM31/BLM41 AF for General Use BLM03/BLM15/BLM18/BLM21/BLM31/BLA2A/BLA31 BLM21/BLM31 AH BLM21 BA BLM18 BB BD for High-speed Signal Lines BE PF PG BLM31 for Power Supplies RK for Digital Interface HG for GHz Band General Use EG for GHz Band General Use (Low DC Resistance type) HB BLM15/BLM18/BLM21/BLA2A BLM15/BLM18/BLM21/BLA31 BLM41 BLM18/BLM21/BLM31/BLM41 BLM18/BLM21 BLM18 for GHz Band High-speed Signal Line BLM18 HK for GHz Band Digital Interface BLM18 GG for High-GHz Band General Use BLM18 HD *1 Frequency characteristics vary with each code. oPackaging Code Packaging K Plastic Taping (o330mm Reel) L Plastic Taping (o180mm Reel) Series BLM31/BLM41/BLM21 *1 B Bulk J Paper Taping (o330mm Reel) BLM15/BLM18/BLM21*2 /BLA31 D Paper Taping (o180mm Reel) BLM03/BLM15/BLM18/BLM21*2 /BLA2A/BLA31 C Bulk Case *1 BLM21BD222SN1/BLM21BD272SN1 only. *2 Except BLM21BD222SN1/BLM21BD272SN1 All series BLM15/BLM18