6051-040 Equivalent & Substitute Parts

Part Overview

The API Delevan Inc. 6051-040 is a 2.5VA laminated core power transformer with dual primary and secondary windings, designed for through-hole mounting applications. The main part is classified as Obsolete, making identification of active equivalent models essential for ongoing circuit board assembly and maintenance operations. The 6051R-040 represents the current-generation equivalent that maintains functional compatibility while providing updated compliance and availability.

Substiute Parts

6051-040

API Delevan Inc.In Stock: 7826051-040 Datasheet

Current PartRFQ

6051R-040

API Delevan Inc.In Stock: 9536051R-040 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 6051R-040 qualifies as a direct substitute for the 6051-040 based on matching electrical and mechanical parameters across all critical specifications. The substitution is valid under the following conditions:

Matching Parameters:

• Identical power rating (2.5VA)
• Identical primary voltage options (115V, 230V)
• Identical secondary voltage configurations (Parallel 20V, Series 40V)
• Identical output current ratings (Parallel 124mA, Series 62mA)
• Identical core type (Laminated)
• Identical winding configuration (Dual Primary, Dual Secondary)
• Identical isolation voltage (1500Vrms)
• Identical mounting type (Through Hole)
• Identical termination style (PC Pin)
• Identical physical dimensions and form factor

The primary differentiation between these parts is product status and compliance certification, not functional or electrical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: The 6051R-040 is the appropriate choice for new designs and ongoing production applications. This part maintains identical electrical and mechanical specifications while offering Active product status and RoHS3 compliance, ensuring long-term supply continuity and regulatory alignment with current manufacturing standards.

Historical Systems: For maintenance or repair of existing equipment using the 6051-040, the 6051R-040 provides functional equivalence with enhanced compliance characteristics. The matching form factor, pin configuration, and electrical parameters ensure direct substitution capability within existing circuit board layouts.

Compliance Consideration: The 6051R-040's RoHS3 compliance status addresses lead-free manufacturing requirements, while the original 6051-040 carries RoHS non-compliant status. Both parts maintain equivalent isolation voltage (1500Vrms) and REACH-Unaffected regulatory status.

Frequently Asked Questions (FAQ)

Q: Can the 6051R-040 replace the 6051-040 in existing circuit boards? A: Yes. The 6051R-040 is a direct form-factor and functional equivalent with identical dimensions (47.60 x 39.60 x 16.50mm), through-hole mounting configuration, and PC pin termination. All electrical parameters match exactly, enabling direct board-level substitution without layout modifications.

Q: What are the key differences between these transformer models? A: The electrical and mechanical specifications are identical. The primary differences are product status (Obsolete vs. Active) and compliance certification (RoHS non-compliant vs. RoHS3 Compliant). The 6051R-040 represents the current manufacturing equivalent.

Q: Are voltage and current ratings identical between both parts? A: Yes. Both transformers provide identical dual primary winding options (115V, 230V), dual secondary voltage configurations (20V parallel, 40V series), and equivalent maximum output currents (124mA parallel, 62mA series).

Q: What isolation voltage do these transformers provide? A: Both the 6051-040 and 6051R-040 provide 1500Vrms isolation voltage rating.

Q: Is the 6051R-040 suitable for new designs? A: Yes. The 6051R-040's Active product status and RoHS3 compliance make it the specified choice for new circuit board designs requiring this power transformer category.