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. 2011.7.7 noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead 2.0 0.2 0.5 0.2 1.25 0.2 eia code : 0805 0.85 0.2 (in mm) : electrode (resistance element becomes dominant at high frequencies.) emifil r (inductor type) chip ferrite bead blm21p series (0805 size) dimensions equivalent circuit packaging code packaging minimum quantity d 180mm paper tape 4000 j 330mm paper tape 10000 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 operating temperature range blm21pg220sn1 p 22ohm 25% - 6000ma 0.01ohm max. -55 to +125 c blm21pg300sn1 p 30ohm (typ.) - 3000ma 0.015ohm max. -55 to +125 c blm21pg600sn1 p 60ohm 25% - 3000ma 0.025ohm max. -55 to +125 c blm21pg121sn1 p 120ohm 25% - 3000ma 0.03ohm max. -55 to +125 c blm21pg221sn1 p 220ohm 25% - 2000ma 0.050ohm max. -55 to +125 c blm21pg331sn1 p 330ohm 25% - 1500ma 0.09ohm max. -55 to +125 c number of circuits: 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. 2011.7.7 in operating temperature exceeding +85 c, derating of current is necessary for blm21pg series. please apply the derating curve shown in chart according to the operating temperature. derating operating temperature [ c] derated current [a] 85 125 0 1 2 3 1.5 4 5 6 impedance ( ? ) frequency (mhz) 1 10 100 1000 3000 500 400 300 100 200 0 blm21pg220sn1 blm21pg300sn1 blm21pg600sn1 blm21pg221sn1 blm21pg331sn1 blm21pg121sn1 1 10 100 1000 3000 frequency (mhz) impedance ( ? ) 30 20 10 0 z r x 40 noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead derating of rated current impedance-frequency characteristics (main items) impedance-frequency characteristics blm21pg220sn1 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. 2011.7.7 1 10 100 1000 3000 frequency (mhz) impedance ( ? ) 10 20 30 40 0 z r x 50 1 10 100 1000 3000 frequency (mhz) impedance ( ? ) 20 40 60 80 0 z r x 100 1 10 100 1000 3000 frequency (mhz) impedance ( ? ) 0 40 80 160 120 z r x 1 10 100 1000 3000 frequency (mhz) impedance ( ? ) 60 120 180 240 0 z r x 300 1 10 100 1000 3000 frequency (mhz) impedance ( ? ) 500 100 200 300 400 0 r x z noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead impedance-frequency characteristics blm21pg300sn1 impedance-frequency characteristics blm21pg600sn1 impedance-frequency characteristics blm21pg121sn1 impedance-frequency characteristics blm21pg221sn1 impedance-frequency characteristics blm21pg331sn1 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. 4 o this data sheet is applied for chip ferrite bead used for general electronics equipment for your design. 2011.7.7 noise suppression products/emi suppression filters > emifil r (inductor type) > chip ferrite bead ! 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 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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