PM54-151K Equivalent & Substitute Parts

Part Overview

The PM54-151K is a 150 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 400 mA with 1.1Ohm DC resistance. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The part is designed for surface mount applications in nonstandard package configurations and operates across the -30°C to 100°C temperature range.

Substiute Parts

PM54-151K

Bourns Inc.In Stock: 838PM54-151K Datasheet

Current PartRFQ

PM54-151K-RC

Bourns Inc.In Stock: 110787PM54-151K-RC Datasheet

DirectRFQ

SDR0604-151KL

Bourns Inc.In Stock: 1367SDR0604-151KL Datasheet

DirectRFQ

CD54NP-151KC

Sumida America Components Inc.In Stock: 990CD54NP-151KC Datasheet

SimilarRFQ

CR54NP-151KC

Sumida America Components Inc.In Stock: 1108CR54NP-151KC Datasheet

SimilarRFQ

PD54R-154K

API Delevan Inc.In Stock: 1201PD54R-154K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM54-151K is determined by strict alignment across the following critical parameters:

• Inductance Value: 150 µH (±10% tolerance)
• Current Rating: 400 mA minimum
• DC Resistance: 1.1Ohm (maximum)
• Core Material: Ferrite
• Shielding Configuration: Unshielded
• Mounting Type: Surface Mount
• Physical Footprint: 0.228" L x 0.228" W (5.80mm x 5.80mm) with height ≤ 0.189" (4.80mm)
• Inductance Test Frequency: 1 kHz

Substitute parts are classified into two categories:

Direct Manufacturer Substitutes (Bourns Inc.): Parts that maintain identical electrical specifications and are manufactured by the original equipment supplier.

Similar Manufacturer Substitutes (Alternative Suppliers): Parts from Sumida America Components Inc. and API Delevan Inc. that meet or exceed the core electrical and mechanical requirements while offering active product status and improved compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

PM54-151K-RC is the primary direct substitute from Bourns Inc. It maintains identical electrical specifications while offering active product status, ROHS3 compliance, and an extended operating temperature range (-40°C to 125°C). This part is available in Tape & Reel packaging with substantial inventory. Selection of this part eliminates obsolescence risk while preserving design compatibility.

SDR0604-151KL is an alternative Bourns Inc. offering from the SDR0604 series. It provides identical electrical performance, active status, and ROHS3 compliance with comparable inventory availability. Physical dimensions remain within acceptable tolerances for the original footprint.

CR54NP-151KC and CD54NP-151KC from Sumida America Components Inc. are functionally equivalent alternatives with active product status and ROHS3 compliance. Both maintain the required electrical specifications and surface mount configuration. Physical dimensions show minor variations within acceptable tolerances.

PD54R-154K from API Delevan Inc. offers the widest operating temperature range (-55°C to 125°C) and active product status with ROHS3 compliance. This part is suitable for applications requiring extended temperature performance. Physical dimensions are slightly reduced but remain compatible with standard surface mount assembly processes.

All substitute parts carry MSL 1 (Unlimited) moisture sensitivity ratings, matching the original component's environmental handling requirements.

Frequently Asked Questions (FAQ)

Q: Can PM54-151K-RC be used as a direct replacement for PM54-151K?

A: Yes. PM54-151K-RC maintains identical inductance (150 µH), current rating (400 mA), and DC resistance (1.1Ohm) specifications. The primary differences are active product status, ROHS3 compliance, and extended temperature range. Physical footprint and mounting type are identical.

Q: What are the key differences between Bourns and alternative manufacturer substitutes?

A: Bourns substitutes (PM54-151K-RC and SDR0604-151KL) are direct product line alternatives with identical electrical specifications. Alternative manufacturer parts (Sumida and API Delevan) meet the same electrical requirements but may have minor physical dimension variations. All alternatives offer active product status and ROHS3 compliance.

Q: Are there physical footprint compatibility concerns with substitute parts?

A: Substitute parts maintain the core 5.80mm x 5.80mm footprint with height variations between 4.50mm and 4.85mm. These variations are within standard surface mount assembly tolerances. CD54NP-151KC and CR54NP-151KC show minor width reductions (5.20mm and 5.30mm respectively) but remain compatible with standard PCB pad layouts designed for the original 5.80mm x 5.80mm footprint.

Q: Which substitute part offers the best temperature performance?

A: PD54R-154K from API Delevan Inc. provides the widest operating temperature range (-55°C to 125°C), compared to the original PM54-151K range of -30°C to 100°C. This part is suitable for applications requiring extended low-temperature or high-temperature operation.

Q: What is the packaging difference between PM54-151K and its substitutes?

A: The original PM54-151K is supplied in bulk packaging. All substitute parts are available in Tape & Reel (TR) format, which is standard for automated assembly processes and provides improved handling and traceability.

Q: Are all substitute parts RoHS compliant?

A: Yes. All substitute parts listed are ROHS3 compliant. The original PM54-151K is RoHS non-compliant. Selection of any substitute part ensures compliance with current environmental regulations.

Q: Can substitute parts be mixed in the same production run?

A: All substitute parts meet identical electrical specifications (150 µH, 400 mA, 1.1Ohm DCR) and are functionally interchangeable. Physical dimension variations are within standard assembly tolerances. Mixing is permissible from an electrical standpoint, though single-part sourcing is recommended for supply chain consistency.