Datasheet

!Note
• Please read rating and !CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc.
• This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering.
C31E.pdf
Mar.28,2011
Chip Ferrite BeadChip EMIFILr
Chip Common Mode Choke Coil
Block Type EMIFILr
Signal Lines Type
70
For digital I/F. Reduce the distortion of waveform created by resonance.
BLM18RSeries (0603 Size)
BLM Series Signal Lines Type Chip Ferrite Bead
■ Dimensions ■ Equivalent Circuit
■ Packaging
■ Impedance-Frequency Characteristics (Main Items)
■ Rated Value (p: packaging code)
■ Impedance-Frequency Characteristics
BLM18RK121SN1 BLM18RK221SN1 BLM18RK471SN1
Continued on the following page.
Refer to pages from p.91 to p.94 for mounting information.
BLM18R
Code Packaging
Minimum
Quantity
D 180mm Reel Paper Tape 4000
J 330mm Reel Paper Tape 10000
B Bulk(Bag) 1000
Part Number
Impedance
(at 100MHz/20°C)
Rated Current
DC Resistance
Operating
Temperature Range
BLM18RK121SN1p 120ohm±25% 200mA 0.25ohm max. -55°C to +125°C
BLM18RK221SN1p 220ohm±25% 200mA 0.30ohm max. -55°C to +125°C
BLM18RK471SN1p 470ohm±25% 200mA 0.50ohm max. -55°C to +125°C
BLM18RK601SN1p 600ohm±25% 200mA 0.60ohm max. -55°C to +125°C
BLM18RK102SN1p 1000ohm±25% 200mA 0.80ohm max. -55°C to +125°C
Number of Circuits: 1
0.4±0.2
1.6±0.15 0.8±0.15
0.8±0.15
(in mm)
: Electrode
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
200
150
100
50
0
Z
R
X
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
0
100
200
300
Z
R
X
1 10 100 1000 3000
Frequency (MHz)
Impedance (Ω)
600
450
300
150
0
Z
R
X
Impedance (Ω)
Frequency (MHz)
1 10 100 1000 3000
1200
900
600
300
0
BLM18RK102SN1
BLM18RK601SN1
BLM18RK471SN1
BLM18RK221SN1
BLM18RK121SN1
(Resistance element becomes dominant
at high frequencies.)