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 for ghz noise 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 for ghz noise blm18e series (0603 size) c dimensions 1.60.15 0.80.15 0.40.2 t (in mm) part number t blm18eg ppp tn1 0.50.15 blm18eg ppp sn1 0.80.15 : electrode 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 BLM18EG101TN1 p 100ohm 25% 140ohm (typ.) 2000ma 0.045ohm max. -55 to +125c blm18eg121sn1 p 120ohm 25% 145ohm (typ.) 2000ma 0.04ohm max. -55 to +125c blm18eg221sn1 p 220ohm 25% 260ohm (typ.) 2000ma 0.05ohm max. -55 to +125c blm18eg221tn1 p 220ohm 25% 300ohm (typ.) 1000ma 0.15ohm max. -55 to +125c blm18eg331tn1 p 330ohm 25% 450ohm (typ.) 500ma 0.21ohm max. -55 to +125c blm18eg391tn1 p 390ohm 25% 520ohm (typ.) 500ma 0.3ohm max. -55 to +125c blm18eg471sn1 p 470ohm 25% 550ohm (typ.) 500ma 0.21ohm max. -55 to +125c blm18eg601sn1 p 600ohm 25% 700ohm (typ.) 500ma 0.35ohm 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 for ghz noise 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 blm18eg 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 2000 500 c impedance-frequency characteristics (main items) blm18eg_tn1 series impedance ( ) frequency (mhz) 1 10 100 1000 3000 1000 800 600 200 400 0 blm18eg391tn1 BLM18EG101TN1 blm18eg221tn1 blm18eg331tn1 c impedance-frequency characteristics (main items) blm18eg_sn1 series impedance ( ) frequency (mhz) 1 10 100 1000 3000 0 1000 800 600 200 400 blm18eg601sn1 blm18eg121sn1 blm18eg471sn1 blm18eg221sn1 c impedance-frequency characteristics BLM18EG101TN1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 25 50 75 125 100 150 z r x c impedance-frequency characteristics blm18eg121sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 40 80 120 160 200 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 for ghz noise 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 blm18eg221sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 100 200 300 400 z r x c impedance-frequency characteristics blm18eg221tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 100 200 300 400 z r x c impedance-frequency characteristics blm18eg331tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 100 200 300 400 500 z r x c impedance-frequency characteristics blm18eg391tn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 250 500 750 1000 z r x c impedance-frequency characteristics blm18eg471sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 200 400 600 800 z r x c impedance-frequency characteristics blm18eg601sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ) 0 200 600 400 800 1000 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 for ghz noise 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 ! 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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