1 data sheet ! note: 1. this datasheet is downloaded from the website of murata manufacturing co., ltd. therefore, it?s speci? cations are subject to 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 speci? cations because there is no space for detailed speci? cations. therefore, please approve our product speci? cations or transact the approval sheet for product speci? cations before ordering. http://www.murata.com/ 1 noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead 2012.1.10 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. emifil r (inductor type) chip ferrite bead blm18k series (0603 size) c dimensions 1.60.15 0.80.15 0.40.2 t (in mm) : electrode part number t blm18kg_tn 0.60.15 blm18kg_sn 0.80.15 c equivalent circuit (resistance element becomes dominant at high frequencies.) c packaging code packaging minimum quantity d 180mm paper tape 4000 j 330mm paper tape 10000 b bulk(bag) 1000 c rated value ( p : packaging code) part number impedance (at 100mhz/20c) impedance (at 1ghz/20c) rated current dc resistance operating temperature range blm18kg260tn1 p 26ohm 25% - 6000ma 0.007ohm max. -55 to +125c blm18kg300tn1 p 30ohm 25% - 5000ma 0.010ohm max. -55 to +125c blm18kg700tn1 p 70ohm 25% - 3500ma 0.022ohm max. -55 to +125c blm18kg101tn1 p 100ohm 25% - 3000ma 0.030ohm max. -55 to +125c blm18kg121tn1 p 120ohm 25% - 3000ma 0.030ohm max. -55 to +125c blm18kg221sn1 p 220ohm 25% - 2200ma 0.050ohm max. -55 to +125c blm18kg331sn1 p 330ohm 25% - 1700ma 0.080ohm max. -55 to +125c blm18kg471sn1 p 470ohm 25% - 1500ma 0.130ohm max. -55 to +125c blm18kg601sn1 p 600ohm 25% - 1300ma 0.150ohm max. -55 to +125c number of circuits: 1 continued on the following page.
2 data sheet ! note: 1. this datasheet is downloaded from the website of murata manufacturing co., ltd. therefore, it?s speci? cations are subject to 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 speci? cations because there is no space for detailed speci? cations. therefore, please approve our product speci? cations or transact the approval sheet for product speci? cations before ordering. http://www.murata.com/ 2 noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead 2012.1.10 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. continued from the preceding page. c derating of rated current in operating temperature exceeding +85c, derating of current is necessary for blm18kg series. please apply the derating curve shown in chart according to the operating temperature. derating of rated current operating temperature (c) rated current (ma) 85 0 125 0 1000 1300 1500 1700 2000 2200 3000 3500 5000 6000 c impedance-frequency characteristics (main items) impedance ( ) frequency (mhz) 1 10 100 1000 3000 0 600 800 400 200 blm18kg221sn1 blm18kg121tn1 blm18kg101tn1 blm18kg700tn1 blm18kg260tn1 blm18kg331sn1 blm18kg471sn1 blm18kg601sn1 blm18kg300tn1 c impedance-frequency characteristics blm18kg260tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 40 30 20 10 z r x continued on the following page.
3 data sheet ! note: 1. this datasheet is downloaded from the website of murata manufacturing co., ltd. therefore, it?s speci? cations are subject to 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 speci? cations because there is no space for detailed speci? cations. therefore, please approve our product speci? cations or transact the approval sheet for product speci? cations before ordering. http://www.murata.com/ 3 noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead 2012.1.10 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. continued from the preceding page. c impedance-frequency characteristics blm18kg300tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 40 30 20 10 z r x c impedance-frequency characteristics blm18kg700tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 100 75 50 25 z r x c impedance-frequency characteristics blm18kg101tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 200 150 100 50 z r x c impedance-frequency characteristics blm18kg121tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 200 150 100 50 z r x c impedance-frequency characteristics blm18kg221sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 400 300 200 100 z r x c impedance-frequency characteristics blm18kg331sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 600 450 300 150 z r x continued on the following page.
4 data sheet ! note: 1. this datasheet is downloaded from the website of murata manufacturing co., ltd. therefore, it?s speci? cations are subject to 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 speci? cations because there is no space for detailed speci? cations. therefore, please approve our product speci? cations or transact the approval sheet for product speci? cations before ordering. http://www.murata.com/ 4 noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead 2012.1.10 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. continued from the preceding page. c impedance-frequency characteristics blm18kg471sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 800 600 400 200 z r x c impedance-frequency characteristics blm18kg601sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 800 600 400 200 x z r c ! caution/notice ! caution (rating) do not use products beyond the rated current 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 pro le where peak solder temperature is below the tin melting point is used. please con rm the solderability of tin plating termination chip before use.
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