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Chip Ferrite Beads
 
Impedance
Expressed by three figures. The unit is in ohm (Ω) at 100MHz. The
first and second figures are significant digits, and the third figure
expresses the number of zeros which follow the two figures.

MANUFACTURER
Murata Manufacturing
 
PRODUCT CATEGORY
Ferrite Beads
 
DESCRIPTION
Ferrite Beads Multi-Layer 1KOhm 25% 100MHz 250mA 1.25Ohm DCR 0402 T/R
 
SPECIFICATION
EU RoHS Compliant
Maximum DC Current (A) 250m
Type Multi-Layer
Impedance (Ohm) 1K
Case Size 0402
Test Frequency (Hz) 100M
Maximum DC Resistance (Ohm) 1.25
Tolerance 25%
Product Height (mm) 0.55
Product Length (mm) 1.05
Product Depth (mm) 0.55
Minimum Operating Temperature (°C) -55
Maximum Operating Temperature (°C) 125
Packaging Tape and Reel

Features (BLM_A Series)
The chip ferrite bead BLM series comprises ferrite
beads in the shape of a chip. This ferrite bead
generates a high impedance which at high frequency
mainly consists of a resistance element. The BLM
series is effective in circuits without stable ground
lines because the BLM series does not need a
connection to ground.
The nickel barrier structure of the external
electrodes provides excellent solder heat resistance.
BLM_A series generates an impedance from the
relatively low frequencies. Therefore BLM_A series is
effective in noise suppression in a wide frequency
range (30MHz - several hundred MHz).
The small size of BLM03 series (0.6x0.3mm) is
suitable for noise suppression in small equipment such
as PA modules for cellular phones.