EMI Suppression Filters (EMC and Noise Suppression)Recommended chip ferrite beads

The large currents ferrite beads lineup

Prepared a large current ferrite beads lineup as a countermeasure against noise in power supply lines. In particular, the BLM_SP series is highly recommended for its superior characteristics compared to existing products owing to the latest processing technology.

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The recommended product characteristics list

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Size code Part Number Stock Check Impedance
@100MHz[ohm]
DCR
(ohm Max.)
Rated Current
(mA)
T size
(mm Max.)
2012mm
(0805inch)
BLM21SN300S□1 30 0.004 8500 1.05
BLM21SP700S□1 70 0.009 6000 1.05
BLM21SP111S□1 110 0.013 5000 1.05
BLM21SP181S□1 180 0.02 4000 1.05
BLM21SP331S□1 330 0.04 2800 1.05
BLM21SP471S□1 470 0.05 2500 1.05
BLM21SP601S□1 600 0.06 2300 1.05
BLM21SP102S□1 1000 0.12 1600 1.05
1608mm
(0603inch)
BLM18SN220T□1 22 0.004 8000 0.75
BLM18KG260T□1 26 0.007 6000 0.75
BLM18KG300T□1 30 0.01 5000 0.75
BLM18KG700T□1 70 0.022 3500 0.75
BLM18KG101T□1 100 0.03 3000 0.75
BLM18KG121T□1 120 0.03 3000 0.75
BLM18KG221S□1 220 0.05 2200 0.95
BLM18KG331S□1 330 0.08 1700 0.95
BLM18KG471S□1 470 0.13 1500 0.95
BLM18KG601S□1 600 0.15 1300 0.95
BLM18KG102S□1 1000 0.2 1000 0.9
3216mm
(1206inch)
BLM31SN500S□1 50 0.0016 12000 1.3
BLM31KN121S□1 120 0.009 6000 1.8
BLM31KN271S□1 270 0.016 4500 1.8
BLM31KN471S□1 470 0.02 4000 1.8
BLM31KN601S□1 600 0.038 2900 1.8
BLM31KN801S□1 800 0.05 2500 1.8
BLM31KN102S□1 1000 0.075 2000 1.8
1005mm
(0402inch)
BLM15EG121S□1 120 0.095 15000 0.55
BLM15EG221S□1 220 0.28 700 0.55
3225mm
(1210inch)
BLE32PN260S□1 26 0.0016 10000 1.6
BLE32PN300S□1 30 0.0016 10000 1.6

All the ferrite beads lineup

Prepared a wide lineup that can be used to select the optimum components that match rated current ranges and noise frequency ranges.