6494-024 Laminated Power Transformer 25VA Equivalent & Substitute Parts

Part Overview

The 6494-024 is a laminated core power transformer rated at 25VA with dual primary and secondary windings, manufactured by API Delevan Inc. This component is classified as obsolete and is no longer in active production. The transformer provides selectable output configurations through dual secondary windings, delivering either 12V at 2A (parallel configuration) or 24V at 1A (series configuration) from 115V or 230V primary inputs.

Due to its obsolete status, sourcing replacement units from original inventory becomes increasingly difficult. Identifying equivalent active production alternatives ensures design continuity and supply chain reliability for applications requiring this transformer specification.

Substiute Parts

6494-024

API Delevan Inc.In Stock: 9566494-024 Datasheet

Current PartRFQ

6494R-024

API Delevan Inc.In Stock: 8786494R-024 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6494-024 is based on electrical and mechanical parameter equivalence. The primary criteria for substitution include:

Electrical Parameters:

• Identical power rating (25VA)
• Matching primary voltage inputs (115V, 230V dual selection)
• Matching secondary voltage outputs in both parallel (12V) and series (24V) configurations
• Equivalent maximum output current specifications (2A parallel, 1A series)
• Identical isolation voltage rating (4000Vrms)
• Matching winding configuration (dual primary, dual secondary)

Mechanical Parameters:

• Identical core type (laminated)
• Matching mounting type (chassis mount)
• Identical termination style (solder and quick connect)
• Equivalent physical dimensions and height specifications

The 6494R-024 meets all these criteria and represents the active production equivalent to the obsolete 6494-024.

Parameter Comparison

Engineering Selection Recommendations

The 6494R-024 is the direct active production equivalent of the 6494-024. All electrical and mechanical parameters are identical, ensuring functional interchangeability in existing circuit designs and mechanical assemblies.

Product Status Consideration: The 6494-024 is classified as obsolete, indicating discontinued manufacturing and limited remaining inventory availability. The 6494R-024 maintains active production status, providing assured long-term supply chain access and design continuity.

Compliance Advantage: The 6494R-024 achieves ROHS3 compliance and carries EAR99 export classification with defined HTSUS coding (8504.31.4035), whereas the 6494-024 is RoHS non-compliant. For applications subject to regulatory requirements or procurement policies mandating RoHS compliance, the 6494R-024 fulfills these obligations while maintaining identical electrical and mechanical performance.

Selection Basis: Selection of the 6494R-024 as a substitute is based on complete parameter equivalence combined with active production status and improved regulatory compliance. No functional modifications or circuit redesign is required for this substitution.

Frequently Asked Questions (FAQ)

Q: Are the 6494-024 and 6494R-024 electrically interchangeable?

A: Yes. Both transformers provide identical electrical specifications including 25VA power rating, dual 115V/230V primary inputs, dual secondary windings with 12V parallel and 24V series outputs, 2A parallel and 1A series maximum currents, and 4000Vrms isolation voltage.

Q: Can the 6494R-024 be used as a direct replacement in existing assemblies designed for the 6494-024?

A: Yes. The 6494R-024 maintains identical mechanical specifications including chassis mount configuration, solder and quick connect termination options, and physical dimensions (71.44mm L × 47.63mm W × 58.74mm H maximum seated height). No mechanical modifications are required.

Q: What is the primary difference between these two part numbers?

A: The 6494-024 is obsolete with no active production, while the 6494R-024 is in active production. Additionally, the 6494R-024 achieves ROHS3 compliance, whereas the 6494-024 is RoHS non-compliant.

Q: Does the 6494R-024 support both 115V and 230V primary inputs like the original?

A: Yes. The 6494R-024 provides dual primary winding configuration supporting both 115V and 230V input selection, identical to the 6494-024.

Q: Are the secondary voltage and current ratings identical between both parts?

A: Yes. Both transformers deliver 12V at 2A maximum in parallel configuration and 24V at 1A maximum in series configuration from the dual secondary windings.

Q: What termination options are available on the 6494R-024?

A: The 6494R-024 supports both solder and quick connect termination styles, matching the 6494-024 specifications.

Q: Is the 6494R-024 suitable for applications requiring RoHS compliance?

A: Yes. The 6494R-024 is ROHS3 compliant, making it suitable for applications and procurement requirements mandating RoHS compliance.