http://www.murata.com/ data sheet ! note: 1. this datasheet is downloaded from the website of murata manufacturing co., ltd. therefore, it?s specifications are subject t o change or our products in it may be discontinued without advance notice. please check with our sales representatives or product engineers bef ore ordering. 2. this datasheet has only typical specifications because there is no space for detailed specifications. therefore, please appr ove our product specifications or transact the approval sheet for product specifications before ordering. 1 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. 2007.5.10 noise suppression products/emi suppression filters > chip emifil r inductor type > chip ferrite beads (in mm) 1.6 0.15 0.8 0.15 0.4 0.2 0.5 0.15 (resistance element becomes dominant at high frequencies.) chip emifil r inductor type chip ferrite beads blm18s series (0603 size) dimension equivalent circuit packaging code packaging minimum quantity d 180mm paper tape 10000 j 330mm paper tape 30000 b bulk(bag) 1000 rated value ( p : packaging code) part number impedance (at 100mhz/20 c) impedance (at 1ghz/20 c) rated current dc resistance(max.) operating temperature range number of circuits blm18sg260tn1 p 26ohm 25% - 6000ma 0.007ohm -55 c to +125 c 1 BLM18SG700TN1 p 70ohm 25% - 4000ma 0.020ohm -55 c to +125 c 1 blm18sg121tn1 p 120ohm 25% - 3000ma 0.025ohm -55 c to +125 c 1 blm18sg221tn1 p 220ohm 25% - 2500ma 0.040ohm -55 c to +125 c 1 blm18sg331tn1 p 330ohm 25% - 1500ma 0.070ohm -55 c to +125 c 1 continued on the following page.
continued from the preceding page. http://www.murata.com/ data sheet ! note: 1. this datasheet is downloaded from the website of murata manufacturing co., ltd. therefore, it?s specifications are subject t o change or our products in it may be discontinued without advance notice. please check with our sales representatives or product engineers bef ore ordering. 2. this datasheet has only typical specifications because there is no space for detailed specifications. therefore, please appr ove our product specifications or transact the approval sheet for product specifications before ordering. 2 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. 2007.5.10 in operating temperatures exceeding +85 d , derating of current is necessary for chip ferrite beads for which rated current is 1500ma or over. please apply the derating curve shown in chart according to the operating temperature. [derating] 85 125 operating temperature [ d ] 0 1 2 3 4 5 6 6a 3a 1.5a 2a 2.5a 4a 1.4a 1.2a 1a derated current [a] 0 10 20 30 40 1 10 100 1000 frequency (mhz) impedance ( ? ) z r x 2000 0 50 100 1 10 100 1000 frequency (mhz) z r x 2000 impedance ( ? ) noise suppression products/emi suppression filters > chip emifil r inductor type > chip ferrite beads notice (rating) impedance-frequency characteristics blm18sg260tn1 impedance-frequency characteristics BLM18SG700TN1 continued on the following page.
continued from the preceding page. http://www.murata.com/ data sheet ! note: 1. this datasheet is downloaded from the website of murata manufacturing co., ltd. therefore, it?s specifications are subject t o change or our products in it may be discontinued without advance notice. please check with our sales representatives or product engineers bef ore ordering. 2. this datasheet has only typical specifications because there is no space for detailed specifications. therefore, please appr ove our product specifications or transact the approval sheet for product specifications before ordering. 3 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. 2007.5.10 0 100 200 1 10 100 1000 frequency (mhz) z r x 2000 impedance ( ? ) 0 100 200 300 1 10 100 1000 frequency (mhz) z r x 2000 impedance ( ? ) 0 100 200 300 400 1 10 100 1000 frequency (mhz) z r x 2000 impedance ( ? ) noise suppression products/emi suppression filters > chip emifil r inductor type > chip ferrite beads impedance-frequency characteristics blm18sg121tn1 impedance-frequency characteristics blm18sg221tn1 impedance-frequency characteristics blm18sg331tn1 ! caution (rating) do not use products beyond the rated current and rated voltage as this may create excessive heat and deteriorate the insulation resistance. notice solderability of tin plating termination chip might be deteriorated when low temperature soldering profile where peak solder temperature is below the tin melting point is used. please confirm the solderability of tin plating termination chip before use. ! caution/notice
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