BLM18SP101SZ1D Ferrite Bead Equivalent & Substitute Parts

Part Overview

The BLM18SP101SZ1D is a power line ferrite bead manufactured by Murata Electronics in the BLM series. This component is a single-line ferrite bead designed for electromagnetic interference (EMI) suppression in power distribution circuits. The part operates at 100 Ohms impedance at 100 MHz and is housed in a 0603 (1608 Metric) surface mount package. The BLM18SP101SZ1D maintains Active product status and carries AEC-Q200 automotive-grade qualification. Substitute parts are identified when inventory constraints, supply chain disruptions, or procurement requirements necessitate alternative sourcing while maintaining identical electrical and mechanical performance specifications.

Substiute Parts

BLM18SP101SZ1D

Murata ElectronicsIn Stock: 3031BLM18SP101SZ1D Datasheet

Current PartRFQ

BLM18SP101SH1D

Murata ElectronicsIn Stock: 12449BLM18SP101SH1D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BLM18SP101SZ1D is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must satisfy the following criteria:

Electrical Parameters:

• Impedance value of 100 Ohms at 100 MHz frequency
• Maximum current rating of 3.7A
• Maximum DC resistance of 22mOhm
• Single power line configuration

Mechanical Parameters:

• 0603 (1608 Metric) package footprint
• Surface mount mounting type
• Maximum height of 0.037" (0.95mm)
• Dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm)

Compliance & Environmental Parameters:

• AEC-Q200 automotive qualification
• Operating temperature range of -55°C ~ 125°C
• ROHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)

Parts meeting all these parameters are classified as direct parametric equivalents and may be substituted without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

The BLM18SP101SH1D is a direct parametric equivalent to the BLM18SP101SZ1D. Both components are manufactured by Murata Electronics and maintain identical electrical specifications, mechanical dimensions, and compliance certifications. Selection between these parts is based on availability and supply chain considerations rather than technical performance differences.

Both parts carry Active product status, ensuring continued manufacturing support and supply reliability. AEC-Q200 qualification on both components confirms suitability for automotive applications requiring stringent reliability standards. ROHS3 compliance and REACH Unaffected status on both parts satisfy environmental and regulatory requirements for global distribution.

The identical impedance characteristic (100 Ohms @ 100 MHz), current rating (3.7A), and DC resistance (22mOhm) ensure interchangeable performance in power line filtering applications. The 0603 package footprint and surface mount configuration are identical, permitting direct board-level substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the BLM18SP101SH1D be used as a direct replacement for the BLM18SP101SZ1D?

A: Yes. The BLM18SP101SH1D meets all electrical and mechanical specifications of the BLM18SP101SZ1D. Both components share identical impedance, current rating, DC resistance, package dimensions, and compliance certifications. Direct substitution is supported without circuit redesign.

Q: Are there differences in the package footprint between these parts?

A: No. Both the BLM18SP101SZ1D and BLM18SP101SH1D use the 0603 (1608 Metric) package with identical dimensions of 0.063" L x 0.031" W (1.60mm x 0.80mm) and maximum height of 0.037" (0.95mm). PCB layout and assembly processes remain unchanged.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both components carry AEC-Q200 qualification, confirming compliance with automotive-grade reliability and performance standards. Both are suitable for automotive power distribution and EMI suppression applications.

Q: What is the operating temperature range for these ferrite beads?

A: Both the BLM18SP101SZ1D and BLM18SP101SH1D operate across the temperature range of -55°C to 125°C, supporting applications in extreme thermal environments.

Q: Are these parts RoHS compliant?

A: Yes. Both components are ROHS3 compliant and REACH Unaffected, satisfying environmental regulations for electronic component manufacturing and distribution.

Q: What is the maximum current these ferrite beads can handle?

A: Both parts are rated for a maximum current of 3.7A, with a maximum DC resistance of 22mOhm at this rating.

Q: What is the impedance specification for these parts?

A: Both the BLM18SP101SZ1D and BLM18SP101SH1D provide 100 Ohms impedance at 100 MHz, the standard frequency for power line ferrite bead characterization.