BLM18KG121JH1D The Murata BLM18KG121JH1D is a 120 Ω chip ferrite bead for power line filtering in a 0603 surface-mount package. It is rated for 1.9A DC current with a maximum DC resistance of 30 mΩ and operates from -55°C to +150°C.
Mfr Part #:

BLM18KG121JH1D

Available from 1 distributors
Mfr Name: Murata
Murata
The Murata BLM18KG121JH1D is a 120 Ω chip ferrite bead for power line filtering in a 0603 surface-mount package. It is rated for 1.9A DC current with a maximum DC resistance of 30 mΩ and operates from -55°C to +150°C.
Total Stock: 70 pcs
$ Price Range: $0.02 - $0.11

BLM18KG121JH1D Available from 1 distributor

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Non-Authorised
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70 pcs
70 pcs On Request 1 On Request On Request 23+ On Request On Request

BLM18KG121JH1D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
AEC Qualified
Automotive Grade
Current Rating (Max)
DC Resistance (DCR) (Max)
ESD Rating
Filter Type
Height (Max)
Impedance @ Frequency
Industrial Grade
Length
Medical Grade
Military Grade
Mounting Type
Number of Lines
Operating Temperature
Packaging Type
Ratings
Storage Temperature
Tape & Reel
Width

BLM18KG121JH1D Description

Short technical summary and product information.

The Murata BLM18KG121JH1D is a chip ferrite bead from the BLM18H series designed for automotive electronics. It provides a typical impedance of 120 Ω at 100 MHz with a tolerance of ±25%, making it suitable for suppressing high-frequency noise on DC power lines. The component is qualified to AEC-Q200 for reliable operation in automotive environments.

 

Electrically, the bead is rated for 1.9 A DC current at an ambient temperature of 125°C; at the maximum operating temperature of 150°C, the rated current is 10 mA. The maximum DC resistance is 30 mΩ initially, with a post-test limit of 40 mΩ as specified in the reference specification. It also features an ESD rating of 2 kV (Human Body Model), corresponding to ESD Rank 2.

 

The device is housed in a 0603 (1608 metric) surface-mount package with dimensions of 1.6 mm × 0.8 mm × 0.75 mm. It operates over the temperature range of -55°C to +150°C. As a single-line power line filter, it is suited for use in engine control units, body electronics, and other automotive subsystems requiring high-temperature performance.

BLM18KG121JH1D Quick Information

Product Type: Ferrite Bead
Series: BLM18H
Canonical Name: 120 Ω Power Line Ferrite Bead, 0603, AEC-Q200
Subcategory: Power Line Ferrite Bead

BLM18KG121JH1D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BLM18KG121JH1D Estimated Pricing

Qty Low High
1+ $0.11 $0.11
10+ $0.08 $0.08
25+ $0.06 $0.06
100+ $0.06 $0.06
250+ $0.05 $0.05
500+ $0.04 $0.04
1,000+ $0.04 $0.04
4,000+ $0.03 $0.03
8,000+ $0.02 $0.02

Estimated market price range - modelled values for guidance only, not live distributor offers.

BLM18KG121JH1D Features

  • 120 Ω impedance at 100 MHz
  • Rated 1.9 A at 125°C ambient
  • AEC-Q200 qualified for automotive
  • Low DCR of 30 mΩ max
  • Provides 2 kV ESD protection

BLM18KG121JH1D Applications

  • Power line noise filtering in automotive electronics.
  • Engine control unit power supply decoupling.
  • High-temperature engine compartment applications.
  • DC power supply noise suppression circuits.

BLM18KG121JH1D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the impedance of the BLM18KG121JH1D?

120 Ω at 100 MHz, with a tolerance of ±25%.

What is the rated current of this ferrite bead?

1.9 A at 125°C ambient, derating to 10 mA at 150°C ambient.

What is the package size and mounting type?

0603 (1608 metric) surface-mount package, measuring 1.6 mm × 0.8 mm × 0.75 mm.

What is the operating temperature range?

-55°C to +150°C.

Is the BLM18KG121JH1D AEC-Q200 qualified?

Yes, it is qualified to AEC-Q200 for automotive applications.

What is the maximum DC resistance?

30 mΩ initial, with a post-test maximum of 40 mΩ per datasheet.

Is the BLM18KG121JH1D RoHS compliant?

It is listed as RoHS3 compliant in existing data, but this status is not independently verified.

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