Equivalent & Substitute Parts for Murata Power Solutions 78253/35MVC Transformer

Part Overview

The Murata Power Solutions 78253/35MVC is a surface mount transformer designed for use with the MAX253 integrated circuit. This component features a 142 µH inductance rating and is housed in a compact 9.00mm × 9.52mm package with a maximum seated height of 6.60mm. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Organizations requiring this transformer for legacy system support, maintenance, or repair applications should evaluate available substitute components that maintain electrical and mechanical compatibility within the 78253 series.

Substiute Parts

78253/35MVC

Murata Power Solutions Inc.In Stock: 116978253/35MVC Datasheet

Current PartRFQ

78253/35JVC

Murata Power SolutionsIn Stock: 158678253/35JVC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution within the Murata Power Solutions 78253 transformer series is determined by the following electrical and mechanical parameters:

• Series Compatibility: All substitute parts must belong to the 78253 series to ensure mechanical fit and electrical interface compatibility with MAX253 applications.
• Mounting Type: Surface mount configuration is required for PCB assembly compatibility.
• Package Dimensions: Length 9.00mm, width 9.52mm, and maximum seated height 6.60mm must be maintained to ensure footprint compatibility on existing circuit boards.
• Inductance Value: The inductance rating determines the electrical performance characteristics and must be selected based on circuit requirements.
• Compliance Standards: RoHS3 compliance and MSL rating of 1 are baseline requirements for component qualification.

The 78253/35JVC transformer meets these mechanical and compliance criteria while offering an alternative inductance value (360 µH) within the same product family.

Parameter Comparison

Engineering Selection Recommendations

The 78253/35JVC serves as an available substitute for the 78253/35MVC based on the following engineering criteria:

Mechanical Compatibility: Both components share identical package dimensions (9.00mm × 9.52mm footprint, 6.60mm maximum height) and surface mount configuration, ensuring direct PCB footprint compatibility.

Compliance and Certification: The 78253/35JVC maintains ROHS3 compliance and MSL rating of 1, meeting the same environmental and regulatory standards as the original part.

Product Status Advantage: The 78253/35JVC carries an "Active" product status, indicating ongoing manufacturer support and availability, whereas the 78253/35MVC is designated "Not For New Designs."

Critical Consideration: The inductance values differ significantly (142 µH versus 360 µH). Component selection must be based on the specific circuit requirements for the MAX253 application. Inductance value is a primary electrical parameter that directly affects circuit performance and cannot be treated as interchangeable without circuit analysis.

Frequently Asked Questions (FAQ)

Q: Can the 78253/35JVC directly replace the 78253/35MVC on existing circuit boards?

A: Both components share identical mechanical specifications (footprint, height, mounting type), enabling direct PCB placement compatibility. However, the inductance difference (142 µH versus 360 µH) requires circuit-level evaluation to confirm electrical compatibility with the MAX253 application.

Q: What is the significance of the "Not For New Designs" status on the 78253/35MVC?

A: This designation indicates the part has been superseded in the manufacturer's product line and is no longer recommended for new circuit designs. The 78253/35JVC, with "Active" status, represents the current product offering within the 78253 series.

Q: Are there packaging differences between these two parts?

A: Yes. The 78253/35MVC is supplied in Box packaging, while the 78253/35JVC is supplied in Tube packaging. This affects handling, storage, and procurement logistics but does not impact component functionality or PCB assembly.

Q: What compliance certifications apply to both parts?

A: Both the 78253/35MVC and 78253/35JVC are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited), meeting current environmental and regulatory requirements for electronic component use.

Q: How should inductance value differences be evaluated for substitution?

A: Inductance is a primary electrical parameter that determines transformer performance in the MAX253 circuit. Selection between 142 µH and 360 µH must be based on specific circuit design requirements and cannot be assumed interchangeable without detailed circuit analysis.