SURFACE MOUNT EMI FILTERS
CHIP FERRITE BEADS
BLMꢀꢀP Series
The BLMꢁꢁP Series ferrite beads offer high frequency noise
suppression with the capability of handling large currents for
DC power line applications.
FEATURES
ꢀ Suitable high frequency noise suppression over wide
frequency range
ꢀ Current rating up to 6 AMPS
ꢀ Small package size–EIA STD 0603/0805/1206 and 1806
ꢀ Nickel barrier terminations provide excellent solder
heat resistance
ꢀ Low DCR
APPLICATIONS
ꢀ High current DC power lines
ꢀ Circuits where a stable ground is unavailable
PART NUMBERING SYSTEM
BLM
21
P
220
SG
PT
CHIP FERRITE SERIES
SIZE
POWER
P: Power
IMPEDANCE CODE
at 100MHz
300: 30 ohms
750: 75 ohms
CHARACTERISTICS
PACKAGING
PB: Bulk
PT: Tape 7” Reel
PT1: 13” Reel
11: 1.6 x 0.8mm
21: 2.0 x 1.25mm
31: 3.2 x 1.6mm
41: 4.5 x 1.6mm
SPECIFICATIONS
Impedance
(Ohms)
Typ. at 100MHz
Operating
Temperature
Range
Rated Current
DCR
(Ohms max.)
Dimensions: mm
Part Number
(mA)
0.4 0.2
0603
ꢀ
ꢀ
BLM11P300S
30
60
1000
0.06
0.10
BLM11P600S
500
0.8 0.15
1.6 0.15
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
BLM21P220SG
BLM21P300S
BLM21P600SG
BLM21P221SG
BLM21P331SG
BLM31P330SG
BLM31P500S
BLM31P121SG
BLM31P391SG
BLM31P601SG
BLM41P600S
BLM41P750S
BLM41P800S
BLM41P181SG
BLM41P471SG
BLM41P102SG
22
30
6000*
0805
1.25 0.2
0.5 0.2
0.025
3000*
60
0.85 0.2
220
330
33
2000*
1500*
6000*
0.05
0.09
2.0 0.2
–55°C
~
+125°C*
1206
1806
0.7 0.3
1.6 0.2
50
0.025
3000*
120
390
600
60
1.1 0.2
2000*
1500*
6000*
3000*
1000*
3000*
2000*
1500*
0.05
3.2 0.2
0.09
0.01
1.6 0.2
75
0.025
0.10
0.7 0.3
80
1.6 0.2
180
470
1000
0.025
0.015
0.09
4.5 0.2
ꢀ
Available as standard through authorized Murata Electronics Distributors.
*See Derating Curve.
DERATING CURVE
BLM21P220SG
BLM31P330SG
BLM41P600S
6
5
BLM21P300S
BLM21P600SG
BLM31P500S
BLM31P121SG
BLM41P750S
BLM41P181SG
4
3
BLM31P391SG
BLM21P221SG
BLM31P601SG
BLM41P800S
2
1.5
1
0
85
125
Operating Temperature (°C)
172
CG01-J