PM54-180M Equivalent & Substitute Parts

Part Overview

The PM54-180M is an 18 µH unshielded drum core, wirewound inductor manufactured by Bourns Inc., rated for 1.23 A with 150mOhm DC resistance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The part operates across -30°C to 100°C and is mounted as a surface mount device in a nonstandard package measuring 5.80mm × 5.80mm × 4.80mm (max height).

Substiute Parts

PM54-180M

Bourns Inc.In Stock: 1252PM54-180M Datasheet

Current PartRFQ

PM54-180M-RC

Bourns Inc.In Stock: 3275PM54-180M-RC Datasheet

DirectRFQ

SDR0604-180YL

Bourns Inc.In Stock: 2112SDR0604-180YL Datasheet

DirectRFQ

CD54NP-180MC

Sumida America Components Inc.In Stock: 952CD54NP-180MC Datasheet

SimilarRFQ

CR54NP-180MC

Sumida America Components Inc.In Stock: 929CR54NP-180MC Datasheet

SimilarRFQ

PD54R-183K

API Delevan Inc.In Stock: 1062PD54R-183K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM54-180M is determined by the following critical parameters:

• Inductance Value: Must be 18 µH
• Current Rating: Minimum 1.23 A
• DC Resistance: Maximum 150mOhm (or 150mOhm Max specification)
• Core Material: Ferrite
• Shielding: Unshielded
• Mounting Type: Surface Mount
• Physical Dimensions: Compatible with 5.80mm × 5.80mm footprint and ≤4.80mm height
• Operating Temperature: Must support at least -30°C to 100°C range

Substitute parts are classified into two categories:

Direct Substitutes meet all electrical and mechanical parameters with identical or improved specifications and active product status.

Similar Substitutes meet core electrical parameters but may have minor dimensional variations or different tolerance specifications. These parts are functionally equivalent within the allowed parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: PM54-180M-RC

The PM54-180M-RC is the direct successor from Bourns Inc. with active product status. It maintains identical inductance, tolerance, and DC resistance specifications while offering improved current rating (1.25 A vs. 1.23 A) and extended operating temperature range (-40°C ~ 125°C vs. -30°C ~ 100°C). ROHS3 compliance and Tape & Reel packaging provide modern supply chain compatibility.

Secondary Recommendation: SDR0604-180YL

The SDR0604-180YL from Bourns Inc. provides tighter inductance tolerance (±15% vs. ±20%) and identical electrical performance. Active status and ROHS3 compliance support long-term availability. Cut Tape & Digi-Reel packaging offers flexible procurement options.

Alternative Options: CD54NP-180MC, CR54NP-180MC

Both Sumida America Components Inc. parts meet electrical specifications with active product status and ROHS3 compliance. CD54NP-180MC and CR54NP-180MC maintain the original 1.23 A current rating and 150mOhm maximum DC resistance. Minor dimensional variations exist but remain compatible with the 5.80mm footprint requirement.

Conditional Consideration: PD54R-183K

The API Delevan Inc. PD54R-183K meets inductance and core material requirements but operates at reduced current rating (1.19 A vs. 1.23 A) and elevated DC resistance (180mOhm Max vs. 150mOhm). This part is suitable only for applications where the lower current rating and higher resistance are acceptable. Tighter inductance tolerance (±10%) and extended temperature range (-55°C ~ 125°C) may provide advantages in specific thermal environments.

Frequently Asked Questions (FAQ)

Q: Can PM54-180M-RC be used as a direct replacement for PM54-180M?

A: Yes. PM54-180M-RC maintains identical inductance (18 µH), tolerance (±20%), and DC resistance (150mOhm) specifications. The improved current rating (1.25 A) and extended operating temperature range provide enhanced performance margins. Active product status ensures continued availability.

Q: What is the difference between PM54-180M-RC and SDR0604-180YL?

A: Both are Bourns Inc. products with identical inductance and current rating. SDR0604-180YL offers tighter inductance tolerance (±15% vs. ±20%) and different packaging options (Cut Tape & Digi-Reel vs. Tape & Reel). Selection depends on tolerance requirements and procurement preferences.

Q: Are Sumida parts (CD54NP-180MC, CR54NP-180MC) compatible with the original PM54-180M?

A: Yes. Both Sumida parts match the core electrical specifications: 18 µH inductance, ±20% tolerance, 1.23 A current rating, and 150mOhm maximum DC resistance. Minor dimensional variations exist but remain within the 5.80mm footprint compatibility window. Active status and ROHS3 compliance support modern supply chains.

Q: Why is PD54R-183K listed as a substitute if it has lower current rating?

A: PD54R-183K meets the 18 µH inductance requirement and ferrite core material specification. However, the 1.19 A current rating is below the original 1.23 A specification, and DC resistance is elevated to 180mOhm maximum. This part is suitable only for applications where these reduced specifications are acceptable. Tighter tolerance (±10%) and extended temperature range may provide advantages in specific designs.

Q: What packaging options are available for substitutes?

A: PM54-180M-RC is supplied in Tape & Reel (TR). SDR0604-180YL is available in Cut Tape (CT) & Digi-Reel. Sumida parts (CD54NP-180MC, CR54NP-180MC) and API Delevan (PD54R-183K) are supplied in Tape & Reel. Packaging selection affects procurement volume requirements and handling procedures.

Q: Are all substitute parts RoHS compliant?

A: The original PM54-180M is RoHS non-compliant. All listed substitutes (PM54-180M-RC, SDR0604-180YL, CD54NP-180MC, CR54NP-180MC, PD54R-183K) are ROHS3 compliant, supporting modern regulatory requirements and supply chain standards.

Q: What is the moisture sensitivity level for these parts?

A: All parts listed, including the original PM54-180M and all substitutes, have Moisture Sensitivity Level (MSL) 1, indicating unlimited shelf life without moisture control requirements.