Datasheet

Chip Ferrite BeadChip EMIFILr
Chip Common Mode Choke Coil
Block Type EMIFILrMicrowave Absorber
!Note
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C31E.pdf
09.4.20
71
For GHz band noise, also capable to large current.
BLM15ESeries (0402 Size)
BLM Series Chip Ferrite Bead
■ Dimensions ■ Equivalent Circuit
■ Packaging
■
Impedance-Frequency Characteristics (Main Items)
■ Rated Value (p: packaging code)
■ Notice (Rating)
■ Impedance-Frequency Characteristics
BLM15EG121SN1 BLM15EG221SN1
Refer to pages from p.82 to p.85 for mounting information.
Code Packaging
Minimum
Quantity
D 180mm Reel Paper Tape 10000
J 330mm Reel Paper Tape 50000
B Bulk(Bag) 1000
Part Number
Impedance
(at 100MHz/20°C)
Impedance
(at 1GHz/20°C)
Rated Current
DC Resistance
(max.)
Operating
Temperature Range
BLM15EG121SN1p 120ohm±25% 145ohm(Typ.) 1500mA 0.095ohm -55°C to +125°C
BLM15EG221SN1p 220ohm±25% 270ohm(Typ.) 700mA 0.28ohm -55°C to +125°C
Number of Circuits: 1
0.5±0.05
0.5±0.05
1.0±0.05
0.25±0.1
(in mm)
: Electrode
Impedance (Ω)
Frequency (MHz)
1 10 100 1000 3000
0
100
200
300
400
BLM15EG221SN1
BLM15EG121SN1
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
0
50
100
150
200
R
X
Z
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
0
100
200
300
400
R
X
Z
Derating
In operating temperature exceeding +85°C, derating of current is
necessary for BLM15E series.
Please apply the derating curve shown in chart according to the operating
temperature.
2.1
1.8
1.5
1.2
0.9
0.6
Derated Current (A)
Operating Temperature (°C)
45 85 125
BLM15EG121SN1
0.9
0.7
0.5
0.3
Derated Current (A)
Operating Temperature (°C)
45 85 125
BLM15EG221SN1
(Resistance element becomes dominant
at high frequencies.)