SURFACE MOUNT EMI FILTERS
CHIP FERRITE BEADS
BLM
TYPICAL IMPEDANCE CHARACTERISTICS
BLM21B050S
50
Impedance (Ohms)
Impedance (Ohms)
40
30
20
10
0
1
10
100
1000
Frequency (MHz)
B Series
BLM21B600SB
500
BLM21B750S
500
Impedance (Ohms)
400
300
200
100
0
1
10
100
1000
400
300
200
100
0
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
BLM21B121SB
500
Impedance (Ohms)
BLM21B121SD
300
Impedance (Ohms)
BLM21B151SB
1000
Impedance (Ohms)
800
600
400
200
0
1
10
100
1000
400
300
200
100
0
1
10
100
1000
Frequency (MHz)
240
180
120
60
0
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
BLM21B151SD
300
Impedance (Ohms)
BLM21B201S
1000
Impedance (Ohms)
BLM21B221SB
1000
Impedance (Ohms)
800
600
400
200
0
1
10
100
1000
240
180
120
60
0
1
10
100
1000
Frequency (MHz)
800
600
400
200
0
1
10
100
1000
Frequency (MHz)
Frequency (MHz)
BLM21B221SD
500
Impedance (Ohms)
400
300
200
100
0
1
10
100
1000
Frequency (MHz)
BLM21B331SB
1500
Impedance (Ohms)
1200
900
600
300
0
1
10
100
1000
Frequency (MHz)
BLM21B331SD
1000
Impedance (Ohms)
800
600
400
200
0
1
10
100
1000
Frequency (MHz)
170
CG01-J
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