Murata Power Solutions 18155C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 18155C is a 1.5 mH unshielded wirewound axial inductor rated for 330 mA with a maximum DC resistance of 1.5 Ohm. This component operates across a temperature range of 0°C to 70°C and is part of the 1800 series. The product is currently obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations where this inductance value and current rating are required.

Substiute Parts

18155C

Murata Power Solutions Inc.In Stock: 87018155C Datasheet

Current PartRFQ

5900-152-RC

Bourns Inc.In Stock: 7825900-152-RC Datasheet

MFR RecommendedRFQ

AIAP-02-152K

Abracon LLCIn Stock: 913AIAP-02-152K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 18155C is determined by the following critical parameters: inductance value (1.5 mH), inductance tolerance (±10%), mounting type (through hole axial), and shielding configuration (unshielded). The substitute parts listed maintain these core electrical and mechanical specifications.

The Bourns 5900-152-RC provides a higher current rating (560 mA versus 330 mA) with improved saturation characteristics, making it suitable for applications requiring greater current headroom while maintaining the same inductance and tolerance. The Abracon AIAP-02-152K maintains the exact current rating of the original part but with different physical dimensions and higher DC resistance.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain RoHS and REACH compliance. The Bourns 5900-152-RC is an active product with an extended operating temperature range (-55°C to 105°C) and higher current saturation rating (680 mA), providing design margin for applications operating beyond the original part's temperature specifications. The Abracon AIAP-02-152K is also an active product with ROHS3 compliance and operates across -40°C to 85°C, suitable for moderate temperature range applications. Selection between these substitutes depends on thermal environment requirements and acceptable DC resistance values for the specific circuit application.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 5900-152-RC replace the Murata 18155C in all applications? A: The Bourns part maintains the same 1.5 mH inductance and ±10% tolerance with improved current handling (560 mA versus 330 mA) and lower DC resistance (1.33 Ohm versus 1.5 Ohm). It is suitable for direct replacement in circuits designed for the original part, with the added benefit of higher current capacity and extended temperature range.

Q: What is the impact of higher DC resistance in the Abracon AIAP-02-152K? A: The Abracon AIAP-02-152K has a maximum DC resistance of 3.45 Ohm compared to the original 1.5 Ohm. This increased resistance will result in higher power dissipation in the inductor. Circuit analysis is required to determine if this resistance increase is acceptable for the specific application.

Q: Are the physical dimensions compatible between these parts? A: All three parts are axial through-hole components, but physical dimensions differ. The Murata measures 0.539" diameter × 0.719" length, the Bourns measures 0.453" diameter × 0.900" length, and the Abracon measures 0.252" diameter × 0.551" length. PCB layout verification is necessary to confirm fit within available space.

Q: Do all substitute parts meet the same compliance standards? A: All parts are RoHS and REACH compliant. The Murata is RoHS Compliant, while both substitutes are ROHS3 Compliant, representing updated compliance certification standards.