PSR54-7R Equivalent & Substitute Parts Reference

Part Overview

The Bel Power Solutions PSR54-7R is a non-isolated point-of-load (PoL) DC-DC converter module with a single 5V output and a maximum current output of 4A. It features a 7V to 40V input voltage range, through-hole mounting, and a conformal coating, designed for ITE (Commercial) and railway applications. This product is currently active in the manufacturer's catalog. In engineering and repair scenarios, identifying alternative models with strict parameter equivalence is required for supply assurance, manufacturing continuity, and maintenance support.

Substiute Parts

PSR54-7R

Bel Power SolutionsIn Stock: 1036PSR54-7R Datasheet

Current PartRFQ

PSA55-7R

Bel Power SolutionsIn Stock: 869PSA55-7R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the PSR54-7R is determined exclusively by matching the following key parameters: input voltage range, output voltage, output current capability, number of outputs, application type, mounting type, package/case, physical dimensions, operating temperature, efficiency, and compliance status (RoHS, REACH, MSL). Substitute parts must fit within these strict specifications to ensure compatibility in electrical and mechanical designs.

Parameter Comparison

Engineering Selection Recommendations

Both PSR54-7R and PSA55-7R are active parts and comply with ROHS3 and REACH requirements. They share the same moisture sensitivity level and physical footprint, ensuring compatibility for compliance-driven applications and assembly handling.

Frequently Asked Questions (FAQ)

Q1: What criteria are used for substituting the PSR54-7R in critical applications?
A1: Substitution is based on matching key electrical parameters (input/output voltage range, current, efficiency), mechanical compatibility (mounting, package, dimensions), application category, operating temperature, and compliance certifications.

Q2: Does the substitute PSA55-7R fit the same PCB footprint as the PSR54-7R?
A2: Both parts use the 6-DIP Module package with identical dimensions, supporting mechanical interchangeability.

Q3: Are there differences in environmental or compliance specifications between the PSR54-7R and PSA55-7R?
A3: Both parts are ROHS3 Compliant, REACH Unaffected, and have the same Moisture Sensitivity Level (1, Unlimited).

Q4: Will substituting PSA55-7R affect my output current requirements?
A4: PSA55-7R offers a maximum output current of 5A compared to 4A for PSR54-7R; ensure downstream load conditions are compatible.

Q5: Is the input voltage range identical in both models?
A5: The PSR54-7R supports up to 40V input; the PSA55-7R supports up to 35V input. Confirm system input voltage is within these limits for the substitute.