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