Murata Electronics BLA2ABB121SN4D Ferrite Bead Array – Equivalent & Substitute Parts

Part Overview

The BLA2ABB121SN4D is a 4-line ferrite bead array manufactured by Murata Electronics in the EMIFIL® BLA2 series. This surface-mount component provides 120 Ohms impedance at 100 MHz for signal line filtering applications. The part is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Equivalent and substitute parts are identified when identical electrical performance parameters and mechanical compatibility are maintained across the same package footprint and mounting technology.

Substiute Parts

BLA2ABB121SN4D

Murata ElectronicsIn Stock: 9959BLA2ABB121SN4D Datasheet

Current PartRFQ

BLA2AAG121SN4D

Murata ElectronicsIn Stock: 10418BLA2AAG121SN4D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BLA2ABB121SN4D is determined by the following criteria:

• Identical impedance specification: 120 Ohms @ 100 MHz
• Identical number of signal lines: 4
• Identical package footprint: 0804 (2010 Metric), Array, 8 PC Pad
• Identical mounting technology: Surface Mount
• Matching operating temperature range: -55°C ~ 125°C
• Equivalent compliance certifications: RoHS3 Compliant, REACH Unaffected

The BLA2AAG121SN4D qualifies as a parametric equivalent under these criteria. Variations in current rating and DC resistance do not preclude substitution when the application requirements fall within the substitute part's electrical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the BLA2ABB121SN4D and BLA2AAG121SN4D maintain Active product status with identical compliance certifications. Selection between these parts is based on application current requirements and packaging format availability. The BLA2AAG121SN4D provides higher current rating (100mA versus 50mA) and lower DC resistance (500mOhm versus 600mOhm), making it suitable for applications requiring enhanced current handling. The BLA2ABB121SN4D is supplied in Tape & Reel format, while the BLA2AAG121SN4D is available in Cut Tape and Digi-Reel® packaging. Both parts maintain identical thermal performance and environmental compliance across the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can BLA2AAG121SN4D replace BLA2ABB121SN4D in existing designs?

A: Yes, when application current requirements do not exceed 100mA. Both parts share identical impedance, frequency response, package footprint, and thermal specifications. Verify that the application current draw falls within the BLA2AAG121SN4D maximum rating of 100mA.

Q: What is the difference in DC resistance between these parts?

A: The BLA2ABB121SN4D has a maximum DC resistance of 600mOhm, while the BLA2AAG121SN4D has a maximum of 500mOhm. This difference reflects the higher current capability of the substitute part and does not affect impedance performance at 100 MHz.

Q: Are there packaging differences between these parts?

A: Yes. The BLA2ABB121SN4D is supplied in Tape & Reel (TR) format. The BLA2AAG121SN4D is available in Cut Tape (CT) and Digi-Reel® packaging. Both use identical 0804 (2010 Metric) surface-mount footprints with 8 PC pads.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the BLA2ABB121SN4D and BLA2AAG121SN4D are ROHS3 Compliant, REACH Unaffected, with MSL 1 (Unlimited) moisture sensitivity rating and identical ECCN and HTSUS classifications.

Q: What is the maximum operating temperature for these ferrite bead arrays?

A: Both parts operate across the identical temperature range of -55°C to 125°C with no derating specified within this range.