PM54-560K Equivalent & Substitute Parts

Part Overview

The PM54-560K is a 56 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 680 mA continuous current with 420mOhm DC resistance. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part is housed in a nonstandard surface mount package measuring 5.80mm × 5.80mm with a maximum seated height of 4.80mm.

Substiute Parts

PM54-560K

Bourns Inc.In Stock: 925PM54-560K Datasheet

Current PartRFQ

SDR0604-560KL

Bourns Inc.In Stock: 3825SDR0604-560KL Datasheet

DirectRFQ

CD54NP-560KC

Sumida America Components Inc.In Stock: 1614CD54NP-560KC Datasheet

SimilarRFQ

CR54NP-560KC

Sumida America Components Inc.In Stock: 2807CR54NP-560KC Datasheet

SimilarRFQ

PD54R-563K

API Delevan Inc.In Stock: 1033PD54R-563K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PM54-560K is determined by the following critical parameters:

• Inductance Value: 56 µH ±10% tolerance
• Current Rating: Minimum 680 mA continuous current capability
• DC Resistance: Maximum 420mOhm
• Core Material: Ferrite
• Shielding Configuration: Unshielded
• Mounting Type: Surface Mount
• Package Footprint: 5.80mm × 5.80mm nominal dimensions
• Moisture Sensitivity: MSL 1 or better

All substitute parts listed meet or exceed these electrical and mechanical specifications. Variations in saturation current, self-resonant frequency, and operating temperature ranges do not disqualify parts from substitution provided the core parameters remain within specification.

Parameter Comparison

Engineering Selection Recommendations

SDR0604-560KL is the primary recommended substitute. Manufactured by Bourns Inc., it maintains identical electrical specifications and package footprint to the PM54-560K while offering active product status, ROHS3 compliance, and extended operating temperature range (-40°C ~ 125°C). This part provides the highest compatibility and is available in volume quantities (3800 pcs).

CR54NP-560KC and CD54NP-560KC are secondary alternatives from Sumida America Components Inc. Both maintain core electrical parameters and offer ROHS3 compliance with active product status. CR54NP-560KC provides drum core wirewound construction matching the original design. Dimensional variations are minor and within acceptable tolerances for most applications.

PD54R-563K from API Delevan Inc. is a tertiary option offering the widest operating temperature range (-55°C ~ 125°C) and lowest profile height (4.50mm). This part is suitable for applications requiring extended temperature performance or space-constrained layouts, though dimensional variations are more pronounced.

All substitute parts are ROHS3 compliant, addressing the non-compliance status of the obsolete PM54-560K for new designs subject to environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can I directly replace PM54-560K with SDR0604-560KL without circuit modifications?

A: Yes. Both parts share identical inductance (56 µH ±10%), current rating (680 mA), DC resistance (420mOhm), and package footprint (5.80mm × 5.80mm). The SDR0604-560KL is electrically and mechanically interchangeable.

Q: What are the dimensional differences between substitute parts?

A: All substitutes maintain the 5.80mm length specification. Width variations range from 5.20mm to 5.80mm, and height from 4.50mm to 4.85mm. These minor differences are typically accommodated in standard PCB layouts. Verify clearance in space-constrained designs.

Q: Why is the PM54-560K obsolete?

A: The PM54-560K is classified as obsolete by the manufacturer. Active alternatives with identical specifications are available from multiple suppliers, making transition to current production parts necessary for ongoing designs.

Q: Are all substitute parts RoHS compliant?

A: Yes. All listed substitutes are ROHS3 compliant, whereas the original PM54-560K is non-compliant. This compliance is mandatory for applications subject to environmental regulations.

Q: Which substitute offers the best temperature performance?

A: The PD54R-563K provides the widest operating temperature range (-55°C ~ 125°C) compared to the original specification (-30°C ~ 100°C). Other substitutes offer -40°C ~ 100°C or -40°C ~ 125°C ranges.

Q: Do all substitutes come in Tape & Reel packaging?

A: Yes. All substitute parts are available in Tape & Reel (TR) packaging, suitable for automated assembly processes. The original PM54-560K packaging format is not specified.

Q: What is the saturation current specification for these inductors?

A: The SDR0604-560KL specifies 900mA saturation current. Other substitutes either do not specify saturation current or specify 680mA. Verify saturation performance requirements for your application.