Murata Power Solutions 18225C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 18225C is a 2.2 mH fixed unshielded wirewound inductor rated for 300 mA with a maximum DC resistance of 2.2 Ohm, designed for through-hole axial mounting. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing design support and production continuity. The 1800 series inductor operates across a temperature range of 0°C to 70°C and is suitable for applications requiring stable inductance at 1 kHz test frequency.

Substiute Parts

18225C

Murata Power Solutions Inc.In Stock: 101918225C Datasheet

Current PartRFQ

5900-222-RC

Bourns Inc.In Stock: 50495900-222-RC Datasheet

MFR RecommendedRFQ

AIAP-02-222K

Abracon LLCIn Stock: 933AIAP-02-222K Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 18225C is determined by the following critical parameters: inductance value (2.2 mH), tolerance (±10%), shielding type (unshielded), mounting configuration (through-hole axial), and inductance test frequency (1 kHz). Current rating and DC resistance are secondary selection criteria that influence suitability based on application requirements.

Two substitute parts meet the primary inductance and mechanical specifications:

Bourns Inc. 5900-222-RC: Matches inductance (2.2 mH), tolerance (±10%), shielding (unshielded), and mounting type (through-hole axial). Offers higher current rating (500 mA) and lower DC resistance (1.7 Ohm Max), with active product status and extended operating temperature range (-55°C to 105°C).

Abracon LLC AIAP-02-222K: Matches inductance (2.2 mH), tolerance (±10%), shielding (unshielded), and mounting type (through-hole axial). Provides lower current rating (270 mA) and higher DC resistance (4.48 Ohm Max), with active product status and moderate operating temperature range (-40°C to 85°C).

Parameter Comparison

Engineering Selection Recommendations

Bourns 5900-222-RC is the primary substitute for applications requiring direct replacement with enhanced performance margins. This part maintains all critical electrical and mechanical specifications while providing superior current handling (500 mA vs. 300 mA) and lower DC resistance (1.7 Ohm vs. 2.2 Ohm). 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 regulatory alignment.

Abracon AIAP-02-222K serves as an alternative substitute for space-constrained applications, offering the smallest physical dimensions (0.252" Dia x 0.551" L). This part is suitable for designs where the 270 mA current rating and 4.48 Ohm DC resistance are acceptable. RoHS3 compliance and active product status support production continuity.

Selection between substitutes depends on application current requirements, thermal environment, and physical space constraints. Both substitutes maintain the critical inductance value, tolerance, and axial through-hole configuration of the original 18225C.

Frequently Asked Questions (FAQ)

Q: Can the Bourns 5900-222-RC directly replace the Murata 18225C? A: Yes. Both parts share identical inductance (2.2 mH), tolerance (±10%), shielding (unshielded), and through-hole axial mounting. The Bourns part offers higher current rating and lower DC resistance, making it suitable for direct substitution in most applications.

Q: What are the physical size differences between substitutes? A: The Murata 18225C measures 0.539" Dia x 0.719" L. The Bourns 5900-222-RC measures 0.453" Dia x 0.900" L. The Abracon AIAP-02-222K measures 0.252" Dia x 0.551" L, making it the most compact option.

Q: How do DC resistance values affect circuit performance? A: DC resistance directly impacts power dissipation and voltage drop across the inductor. The Murata 18225C and Bourns 5900-222-RC have comparable DCR values (2.2 Ohm vs. 1.7 Ohm), while the Abracon AIAP-02-222K has higher DCR (4.48 Ohm), resulting in greater power loss in high-current applications.

Q: Are both substitutes RoHS compliant? A: The Bourns 5900-222-RC is RoHS3 compliant. The Abracon AIAP-02-222K is RoHS3 compliant. Both meet current regulatory requirements for electronic component manufacturing.

Q: What is the significance of the current rating difference? A: The Murata 18225C is rated for 300 mA. The Bourns 5900-222-RC supports 500 mA, providing design margin for applications approaching the original current limit. The Abracon AIAP-02-222K is rated for 270 mA, requiring verification that application current does not exceed this threshold.

Q: Can the Abracon AIAP-02-222K be used in all applications? A: The Abracon part is suitable only for applications where the 270 mA current rating is sufficient. Applications requiring the full 300 mA rating of the original part should use the Bourns 5900-222-RC.