Equivalent & Substitute Parts Reference: PSR54-7Y

Part Overview

The PSR54-7Y from Bel Power Solutions is a non-isolated point-of-load (PoL) DC-DC converter module, conformal coated, designed for commercial information technology equipment and railway applications. It supports a single output of 5V at up to 4A with an input voltage range of 7V to 40V. The module is RoHS3 compliant, has 6-DIP through-hole mounting, and remains actively available in inventory. Due to supply continuity requirements, product lifecycle considerations, or project-specific inventory management, it may be necessary to find alternative models with equivalent electrical, mechanical, and compliance characteristics.

Substiute Parts

PSR54-7Y

Bel Power SolutionsIn Stock: 804PSR54-7Y Datasheet

Current PartRFQ

PSA55-7R

Bel Power SolutionsIn Stock: 869PSA55-7R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are grouped strictly based on electrical and mechanical compatibility, regulatory compliance, and environmental certifications. The key parameters for substitution are:

• Input Voltage Range
• Output Voltage and Number of Outputs
• Maximum Output Current
• Operating Temperature Range
• Mounting Type
• Package / Case Dimensions
• RoHS and REACH Compliance
• Product Status
• Application Category

These parameters ensure that substitute parts provide equivalent electrical performance, mechanical fit, and compliance status as the main part.

Parameter Comparison

Engineering Selection Recommendations

The PSR54-7Y and its substitute PSA55-7R are both active products, RoHS3 compliant, and REACH unaffected, with identical mounting types and package dimensions. Both products meet Moisture Sensitivity Level 1 (Unlimited), supporting standard handling and storage conditions. Selection between these parts should be based on part availability and compliance matching, ensuring certified use in regulated environments.

Frequently Asked Questions (FAQ)

Q1: What are the essential electrical parameters for DC-DC converter substitution in this product category?
A1: The essential parameters are input voltage range, output voltage, maximum output current, number of outputs, and efficiency.

Q2: Is mechanical compatibility a factor in substitution?
A2: Yes. Mounting type, package/case format, and physical dimensions must be identical for direct replacement.

Q3: Do both PSR54-7Y and PSA55-7R support railway and ITE commercial applications?
A3: Both models are specified for ITE (Commercial) and Railway applications.

Q4: What compliance certifications should be matched for substitution?
A4: RoHS3 compliance, REACH status, Moisture Sensitivity Level (MSL), and product status must align for a valid substitute.

Q5: Are the operating temperature ranges identical for both parts?
A5: Both parts have an operating temperature range of -25°C ~ 71°C.

Q6: Does the substitute part PSA55-7R have a higher output current?
A6: PSA55-7R supports a maximum output current of 5A, compared to 4A on the PSR54-7Y.

Q7: What package format do both models use?
A7: Both models utilize a 6-DIP module with through hole mounting and identical size/dimensions (2.76" x 1.98" x 0.99").

Q8: Is there any difference in input voltage range between these models?
A8: PSR54-7Y supports 7V to 40V input, while PSA55-7R supports 7V to 35V input.