Equivalent & Substitute Parts for QLS25ZE-NT7

Part Overview

The QLS25ZE-NT7 from Bel Power Solutions is a DC-DC converter module from the QLS25 series, providing isolated conversion with a single 3.3V output at up to 25A, 83W, and a wide 36V to 75V input voltage range. This 1/4 brick, through-hole module includes multiple protection features and is ROHS3 compliant. As this part is obsolete, sourcing direct replacements is critical for ongoing designs, repairs, and inventory management. Identification of substitute models ensures compatibility in form, function, and compliance.

Substiute Parts

QLS25ZE-NT7

Bel Power SolutionsIn Stock: 800QLS25ZE-NT7 Datasheet

Current PartRFQ

QM48T45033-NBB0G

Bel Power SolutionsIn Stock: 1356QM48T45033-NBB0G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is based exclusively on matching or exceeding the following parameters: input voltage range, output voltage, output current, power rating, isolation voltage, number of outputs, mounting type, package/case, compliance (RoHS3, REACH), and key features (such as remote on/off and protection features). Only parts meeting these constraints are considered appropriate substitutes. Dimensional compatibility within the same package/case format is also required.

Parameter Comparison

Engineering Selection Recommendations

Based on the product status, QLS25ZE-NT7 is obsolete, while QM48T45033-NBB0G is active. Both parts are ROHS3 compliant and REACH unaffected. The substitute, QM48T45033-NBB0G, aligns with all listed compliance and certification requirements. No additional selection criteria are applied.

Frequently Asked Questions (FAQ)

Q1: What qualifies a DC-DC converter as a direct substitute in this category?
A1: Substitution requires matching input voltage range, output voltage, current capacity, isolation voltage, package type, mounting style, feature set, and compliance with RoHS and REACH.

Q2: Are form factor and mechanical compatibility maintained between QLS25ZE-NT7 and QM48T45033-NBB0G?
A2: Both devices use the 8-DIP Module, 1/4 Brick package, supporting mechanical interchangeability within those dimensions.

Q3: How is electrical compatibility ensured in this substitution?
A3: Both DC-DC converter modules support 36V to 75V input, output 3.3V, and offer at least equivalent or higher current and power ratings. Protection and control features are consistent.

Q4: Do both parts maintain regulatory compliance equivalence?
A4: Both are ROHS3 compliant and REACH unaffected, ensuring regulatory parity for restricted and regulated markets.

Q5: How should differences in output specifications be considered?
A5: Output current and isolation voltage of QM48T45033-NBB0G meet or exceed the values for QLS25ZE-NT7 without introducing non-compliance or incompatibility within the defined parameters.

Q6: Are mounting and assembly processes impacted by this substitution?
A6: Both modules use through-hole mounting and the same 1/4 brick package type, preserving assembly consistency.

Q7: Is there any difference in moisture sensitivity or storage requirements?
A7: Both parts have Moisture Sensitivity Level 1 (Unlimited), requiring no special handling or storage changes.