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BLM31PG121SH1L Chip ferrite bead with 120 Ω impedance at 100 MHz, rated for 3.5 A at 85°C. Surface mount 1206 package, AEC-Q200 qualified for automotive applications.
Mfr Part #:

BLM31PG121SH1L

Available from 4 distributors
Mfr Name: Murata
Murata
Chip ferrite bead with 120 Ω impedance at 100 MHz, rated for 3.5 A at 85°C. Surface mount 1206 package, AEC-Q200 qualified for automotive applications.
Total Stock: 75,440 pcs
$ Price Range: $0.10 - $0.38

BLM31PG121SH1L Available from 4 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
70,633 pcs
70633 pcs On Request 1 On Request On Request 16+ On Request On Request
Non-Authorised Inventory information
2,291 pcs
2291 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
2,291 pcs
2291 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
225 pcs
225 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

BLM31PG121SH1L 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 Rank
Filter Type
Height (Max)
Impedance @ Frequency
Impedance Tolerance
Length
Mass
Mounting Type
Number of Lines
Operating Temperature
Rated Current (Maximum @ 125 °C)
Ratings
SVHC Present
Storage Temperature
Tape & Reel
Termination Style
Width

BLM31PG121SH1L Description

Short technical summary and product information.

The Murata BLM31PG121SH1L is a chip ferrite bead designed for power line filtering in automotive electronics. It offers a nominal impedance of 120 Ω at 100 MHz with ±25% tolerance. The component is rated for a maximum DC current of 3.5 A at 85°C ambient temperature, derated to 2 A at 125°C. Maximum DC resistance is 20 mOhm. The ferrite bead is housed in a standard 1206 (3216 metric) surface mount package with dimensions 3.2 mm x 1.6 mm x 1.3 mm. It is qualified to AEC-Q200, making it suitable for automotive applications. The operating temperature range is -55°C to +125°C. ESD rank is 6 (25 kV). The part is supplied in tape and reel packaging. No marking on the component.

BLM31PG121SH1L Quick Information

Product Type: Ferrite Bead
Series: BLM31_SH
Canonical Name: Murata BLM31PG121SH1L Chip Ferrite Bead, 120 Ω @ 100 MHz, 3.5 A, 1206, AEC-Q200
Subcategory: Chip Ferrite Bead

BLM31PG121SH1L Compliance

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

BLM31PG121SH1L Estimated Pricing

Qty Low High
1+ $0.38 $0.38
10+ $0.27 $0.27
25+ $0.23 $0.23
50+ $0.21 $0.21
100+ $0.18 $0.18
250+ $0.15 $0.15
500+ $0.14 $0.14
1,000+ $0.10 $0.10
3,000+ $0.10 $0.10

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

BLM31PG121SH1L Features

  • 120 Ω impedance at 100 MHz.
  • Rated current 3.5 A at 85°C.
  • Low DC resistance of 20 mOhm.
  • AEC-Q200 qualified for automotive.
  • Surface mount 1206 package.

BLM31PG121SH1L Applications

  • Power line noise suppression in automotive ECUs.
  • EMI filtering in infotainment systems.
  • DC-DC converter input/output filtering.
  • General purpose signal line filtering.

BLM31PG121SH1L FAQs

7 frequently asked questions generated from this part’s specifications.
What is the impedance of the BLM31PG121SH1L?

120 Ω at 100 MHz.

What is the rated current?

3.5 A at 85°C, derated to 2 A at 125°C.

What is the operating temperature range?

-55°C to +125°C.

What package is this ferrite bead available in?

1206 (3216 Metric) surface mount.

Is this component AEC-Q200 qualified?

Yes, it is rated AEC-Q200.

What is the DC resistance?

Maximum 20 mOhm.

Is it RoHS compliant?

RoHS3 compliant (unverified).

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