BLM31KN121SN1L

Murata Electronics
81-BLM31KN121SN1L
BLM31KN121SN1L

Mfr.:

Description:
Ferrite Beads 120 OHM Alternate Sizing Guide Below

Datasheet:
ECAD Model:
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Learn more about Murata Electronics BLM31KN121SN1L

In Stock: 22.118

Stock:
22.118
Can Dispatch Immediately
On Order:
12.400
Expected 4/28/2026
Factory Lead Time:
12
Weeks Estimated factory production time for quantities greater than shown.
Minimum: 1   Multiples: 1
Unit Price:
-,-- €
Ext. Price:
-,-- €
Est. Tariff:
Packaging:
Full Reel (Order in multiples of 2500)

Pricing (EUR)

Qty. Unit Price
Ext. Price
Cut Tape / MouseReel™ †
0,31 € 0,31 €
0,22 € 2,20 €
0,191 € 4,78 €
0,171 € 8,55 €
0,152 € 15,20 €
0,13 € 32,50 €
0,114 € 57,00 €
0,086 € 86,00 €
Full Reel (Order in multiples of 2500)
0,086 € 215,00 €
† A MouseReel™ fee of 5,00 € will be added and calculated in your basket. All MouseReel™ orders are non-cancellable and non-returnable. ↩

Product Attribute Attribute Value Select Attribute
Murata
Product Category: Ferrite Beads
RoHS:  
BLM31KN_SN
Ferrite Chip Beads
SMD/SMT
1206 (3216 metric)
120 Ohms
6 A
25 %
9 mOhms
- 55 C
+ 125 C
3.2 mm
1.6 mm
1.6 mm
Reel
Cut Tape
MouseReel
Brand: Murata Electronics
Country of Assembly: Not Available
Country of Diffusion: Not Available
Country of Origin: JP
Number of Channels: 1 Channel
Product Type: Ferrite Beads
Factory Pack Quantity: 2500
Subcategory: Ferrites
Test Frequency: 100 MHz
Part # Aliases: EKDMGN01A-KIT EKDMGN04-KIT
Unit Weight: 56 mg
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Attributes selected: 0

Datasheet

Models

Technical Resources

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TARIC:
8504500000
CNHTS:
8548000001
CAHTS:
8548000000
USHTS:
8548000000
JPHTS:
854800000
ECCN:
EAR99

EMI Noise Suppression

Noise suppression has become an important issue, especially regarding electromagnetic interference (EMI) and electromagnetic compatibility (EMC). Murata provides engineers with complete support, including products and design-simulation software solutions based on expertise achieved through extensive on-site experience. This enables Murata to provide noise suppression solutions for a broad array of applications.

BLM31KN Automotive EMIFIL® Chip Ferrite Beads

Murata Electronics BLM31KN Automotive EMIFIL® Chip Ferrite Beads are ideal for power supply circuits that require a high rated current. These beads are suitable for suppressing high-frequency noise over a wide frequency range in power supply circuits, and most are AEC-Q200 qualified. The AEC-Q200 ferrite beads are ideal for automotive applications such as infotainment and powertrain safety. The series includes non-automotive-grade beads, which are suitable for general purpose power supply circuit usage, including industrial, test equipment, factory automation, and networking. Murata Electronics BLM31KN Automotive EMIFIL Chip Ferrite Beads are packaged in a small 1206 case size (3.2mm x 1.2mm x 1.2mm) and achieve a high 6A impedance.

Power Supply Line Noise Suppression for Home Audio

Digital amplifiers are increasingly popular for home audio applications. In many cases, power is supplied from an AC outlet for home audio, and the conductive noise in the power supply cable is regulated under EMC standards. Therefore, it is necessary to prevent noise from leaking into the power supply line during audio playback. Here is an overview of noise problems in home audio cables and their solutions.

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