API Delevan 6445-028 Equivalent & Substitute Parts

Part Overview

The API Delevan 6445-028 is a laminated core power transformer rated at 10VA with dual primary and secondary windings. This through-hole mounted component is designed for applications requiring 115V or 230V primary input with configurable secondary output in parallel (14V) or series (28V) configuration. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

6445-028

API Delevan Inc.In Stock: 8566445-028 Datasheet

Current PartRFQ

6445R-028

API Delevan Inc.In Stock: 7636445R-028 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 6445-028 is determined by strict equivalence across the following critical parameters:

• Power rating: 10VA
• Core type: Laminated
• Primary voltage configuration: Dual winding supporting 115V and 230V
• Secondary voltage configuration: Dual winding supporting parallel 14V and series 28V
• Output current capacity: Parallel 730mA, Series 360mA
• Mounting and termination: Through-hole with PC pin termination
• Isolation voltage: 4000Vrms
• Physical envelope: 47.63mm L × 39.67mm W × 36.50mm H

The API Delevan 6445R-028 meets all these criteria and qualifies as a direct functional substitute.

Parameter Comparison

Engineering Selection Recommendations

The 6445R-028 is the appropriate substitute for the obsolete 6445-028. Both components are manufactured by API Delevan Inc. and maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status and regulatory compliance: the 6445R-028 is currently active in production and meets ROHS3 compliance requirements, whereas the 6445-028 is obsolete and non-compliant with current RoHS standards.

For new designs and ongoing system support where component availability is required, the 6445R-028 provides direct functional equivalence with the added benefit of current manufacturing status and enhanced regulatory compliance. Both parts share identical isolation voltage (4000Vrms), physical dimensions, and electrical performance characteristics, ensuring seamless integration into existing circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the 6445R-028 be used as a direct replacement for the 6445-028 in existing designs?

A: Yes. The 6445R-028 maintains identical electrical specifications, physical dimensions, mounting configuration, and termination style. No circuit modifications are required for substitution.

Q: What is the significance of the RoHS compliance difference?

A: The 6445-028 is RoHS non-compliant, while the 6445R-028 is ROHS3 compliant. For applications subject to RoHS regulations or procurement standards requiring compliance, the 6445R-028 is the required choice.

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

A: Yes. Both components support identical primary voltages (115V, 230V), secondary voltages in parallel (14V) and series (28V) configurations, and maximum output currents (730mA parallel, 360mA series).

Q: Is the physical footprint the same for both parts?

A: Yes. Both the 6445-028 and 6445R-028 share identical dimensions of 47.63mm L × 39.67mm W × 36.50mm H and use through-hole PC pin termination, ensuring compatibility with existing PCB layouts.

Q: Why is the 6445-028 classified as obsolete?

A: The 6445-028 has been superseded by the 6445R-028, which offers improved regulatory compliance and active manufacturing support. The 6445R-028 is the current production equivalent.