ETQ-P5LR60XFA Equivalent & Substitute Parts

Part Overview

The ETQ-P5LR60XFA is a 600 nH shielded drum core wirewound inductor manufactured by Panasonic Electronic Components. This surface mount component is rated for 27 A continuous current with a DC resistance of 1.1 mOhm and operates at 100 kHz test frequency. The part is classified as Not For New Designs, indicating it has been superseded in Panasonic's product portfolio. Finding equivalent or substitute inductors is necessary for applications requiring continued supply, design flexibility, or performance optimization within the specified electrical and mechanical constraints.

Substiute Parts

ETQ-P5LR60XFA

Panasonic Electronic ComponentsIn Stock: 1771ETQ-P5LR60XFA Datasheet

Current PartRFQ

SRP1245A-R56M

Bourns Inc.In Stock: 1481SRP1245A-R56M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ETQ-P5LR60XFA is determined by the following critical parameters:

Inductance Range: The substitute must operate within the ±20% tolerance band of 600 nH, establishing an acceptable range of 480 nH to 720 nH.

Current Rating: The substitute must support a minimum continuous current rating equal to or exceeding 27 A to maintain thermal and electrical performance margins in the application circuit.

DC Resistance: The substitute's DCR must not significantly exceed 1.1 mOhm to prevent excessive power dissipation and heat generation.

Shielding: The substitute must be shielded to maintain electromagnetic compatibility and prevent coupling with adjacent circuit elements.

Core Type and Mounting: The substitute must be a drum core wirewound inductor in surface mount configuration to ensure mechanical and thermal compatibility with the PCB layout.

Compliance: The substitute must maintain ROHS3 compliance and equivalent environmental certifications.

The SRP1245A-R56M from Bourns Inc. meets these substitution criteria with an inductance of 560 nH (within tolerance range), a 36 A current rating (exceeding the 27 A requirement), and a maximum DCR of 1.5 mOhm (acceptable margin above the original 1.1 mOhm specification).

Parameter Comparison

Engineering Selection Recommendations

The SRP1245A-R56M is suitable as a substitute for the ETQ-P5LR60XFA based on the following engineering criteria:

Electrical Performance: The SRP1245A-R56M operates within the inductance tolerance band at 560 nH and exceeds the current rating requirement with 36 A capacity, providing design margin for thermal stability and component longevity.

Compliance and Certifications: Both components maintain ROHS3 compliance and equivalent environmental certifications (REACH Unaffected, EAR99 ECCN classification). The Bourns component carries AEC-Q200 automotive qualification, indicating enhanced reliability for demanding applications.

Product Status: The Bourns SRP1245A-R56M is classified as Active, ensuring continued availability and supply chain stability compared to the Panasonic part's Not For New Designs status.

Physical Compatibility: Both components are surface mount inductors with identical height specifications (0.197" seated maximum), supporting direct PCB layout compatibility. Minor dimensional differences in length and width (14.50mm vs. 14.60mm length) do not affect functional placement in standard PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the SRP1245A-R56M directly replace the ETQ-P5LR60XFA without circuit modification?

A: Yes, within the specified tolerance and performance parameters. The 560 nH inductance of the Bourns part falls within the ±20% tolerance band of the original 600 nH specification. The higher current rating (36 A vs. 27 A) and slightly elevated DCR (1.5 mOhm vs. 1.1 mOhm) represent acceptable engineering margins for most applications. Circuit validation is recommended for applications with tight inductance or thermal constraints.

Q: What is the inductance tolerance impact when substituting?

A: The ETQ-P5LR60XFA operates at 600 nH ±20%, establishing a range of 480–720 nH. The SRP1245A-R56M at 560 nH ±20% operates within 448–672 nH. The 40 nH difference between nominal values (600 nH vs. 560 nH) represents a 6.7% deviation, well within the combined tolerance envelope and acceptable for most filter, impedance matching, and energy storage applications.

Q: How does the core material difference affect performance?

A: The ETQ-P5LR60XFA uses metal composite core material, while the SRP1245A-R56M uses carbonyl powder. Both are shielded drum core designs suitable for surface mount applications. Carbonyl powder cores typically exhibit lower core loss at high frequencies and better temperature stability. This difference does not prevent substitution but may result in improved Q factor performance in the Bourns component.

Q: Are there package compatibility concerns?

A: Both components are 2-SMD surface mount packages with identical height (5.00 mm maximum seated). The SRP1245A-R56M is specified as Nonstandard package, while the ETQ-P5LR60XFA uses J-Lead configuration. Physical dimensions are similar (length 14.60 mm vs. 14.50 mm, width 12.50 mm identical), supporting direct PCB footprint compatibility for standard reflow soldering processes.

Q: What is the DC resistance impact on circuit performance?

A: The SRP1245A-R56M maximum DCR of 1.5 mOhm represents a 0.4 mOhm increase over the original 1.1 mOhm specification. At the 27 A rated current, this results in approximately 10.8 mW additional power dissipation (I²R loss: 27² × 0.0004 = 0.29 mW additional). This margin is negligible in most power delivery and filtering applications and does not require thermal redesign.