Murata 18154C 150µH Axial Wirewound Inductor Equivalent & Substitute Parts

Part Overview

The Murata 18154C is a 150µH unshielded wirewound inductor rated for 1.1A continuous current with 165mOhm maximum DC resistance. This component is classified as obsolete, making equivalent substitutes necessary for new designs and production continuity. The part operates across a 0°C to 70°C temperature range and is mounted through-hole in axial configuration. Identifying compatible alternatives ensures design flexibility while maintaining electrical performance specifications.

Substiute Parts

18154C

Murata Power Solutions Inc.In Stock: 85318154C Datasheet

Current PartRFQ

5900-151-RC

Bourns Inc.In Stock: 22915900-151-RC Datasheet

MFR RecommendedRFQ

AIAP-02-151K

Abracon LLCIn Stock: 4888AIAP-02-151K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Murata 18154C is determined by the following core parameters:

• Inductance Value: Must be 150µH ±10% tolerance
• Mounting Configuration: Through-hole axial package required
• Shielding Type: Unshielded construction
• Test Frequency: 1 kHz inductance measurement standard
• Current Handling: Minimum 1.1A rating or higher
• DC Resistance: Lower or equal to 165mOhm preferred for thermal performance
• Compliance: RoHS and REACH compliance status

Two substitute parts meet these criteria: the Bourns 5900-151-RC and the Abracon AIAP-02-151K. Both maintain the 150µH inductance specification, through-hole axial mounting, and unshielded configuration. Differences in current rating, DC resistance, core material, and operating temperature ranges provide options for different application requirements.

Parameter Comparison

Engineering Selection Recommendations

Bourns 5900-151-RC is the manufacturer-recommended primary substitute. It provides superior current handling at 2A with lower DC resistance (110mOhm), reducing thermal dissipation compared to the original part. The extended operating temperature range (-55°C to 105°C) accommodates broader environmental conditions. ROHS3 compliance and active product status ensure long-term availability and supply chain stability.

Abracon AIAP-02-151K serves as an alternative substitute with active product status and ROHS3 compliance. This option is suitable for applications where the 1A current rating is sufficient. The higher DC resistance (340mOhm) results in greater power dissipation and should be evaluated against thermal constraints. The compact axial dimensions (6.40mm diameter × 14.00mm length) provide space advantages in board-constrained designs.

Both substitutes maintain RoHS and REACH compliance, ensuring regulatory alignment with the original Murata component.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 5900-151-RC directly replace the Murata 18154C in existing designs?

A: Yes. Both components share identical inductance (150µH ±10%), unshielded construction, through-hole axial mounting, and 1 kHz test frequency. The Bourns part exceeds the original current rating (2A vs. 1.1A) and provides lower DC resistance, making it electrically compatible and thermally superior.

Q: What are the physical dimension differences between substitutes?

A: The Murata 18154C measures 13.70mm diameter × 18.25mm length. The Bourns 5900-151-RC is 11.51mm diameter × 22.86mm length. The Abracon AIAP-02-151K is the most compact at 6.40mm diameter × 14.00mm length. PCB layout and clearance requirements should be verified before selection.

Q: Is the Abracon AIAP-02-151K suitable for high-current applications?

A: No. The Abracon part is rated for 1A continuous current, which is below the original 1.1A specification. It is appropriate only for applications requiring 1A or less. For applications requiring the full 1.1A or higher, the Bourns 5900-151-RC is the recommended choice.

Q: How does DC resistance affect component selection?

A: DC resistance determines power dissipation (P = I²R). The Bourns 5900-151-RC (110mOhm) dissipates less heat than the original (165mOhm) at equivalent current levels. The Abracon AIAP-02-151K (340mOhm) dissipates significantly more heat and requires thermal evaluation in power-sensitive applications.

Q: Are both substitutes available in the same packaging format?

A: The Bourns 5900-151-RC is supplied in tray packaging, while the Abracon AIAP-02-151K is supplied in bulk packaging. Verify packaging compatibility with assembly and procurement workflows.

Q: What is the compliance status of each substitute?

A: All three components are REACH Unaffected and RoHS compliant. The Bourns and Abracon parts carry ROHS3 certification, representing the latest RoHS standard compliance level.