API Delevan 6444-028 Equivalent & Substitute Parts

Part Overview

The API Delevan 6444-028 is a laminated core power transformer rated at 5VA 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 of 14V (parallel) or 28V (series). The 6444-028 is classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

6444-028

API Delevan Inc.In Stock: 6586444-028 Datasheet

Current PartRFQ

6444R-028

API Delevan Inc.In Stock: 8716444R-028 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the API Delevan 6444-028 is determined by strict equivalence across the following critical parameters:

• Power rating: 5VA
• Primary voltage configuration: Dual winding supporting 115V and 230V
• Secondary voltage output: Parallel 14V / Series 28V configuration
• Output current capacity: Parallel 360mA / Series 180mA
• Core type: Laminated
• Mounting and termination: Through-hole with PC pin termination
• Physical dimensions: 41.28mm L × 33.32mm W × 33.32mm H
• Isolation voltage: 4000Vrms

The API Delevan 6444R-028 meets all electrical and mechanical parameters required for direct substitution. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 6444R-028 is the direct substitute for the obsolete 6444-028. Both components share identical electrical specifications and physical dimensions, ensuring functional equivalence in circuit applications.

The 6444R-028 offers the advantage of active product status, indicating ongoing manufacturer support and availability. Additionally, the 6444R-028 carries RoHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

For applications requiring compliance with modern environmental standards or long-term component availability, the 6444R-028 is the appropriate selection. Both components maintain equivalent isolation voltage (4000Vrms), winding configuration, and output current capacity across parallel and series operating modes.

Frequently Asked Questions (FAQ)

Q: Can the 6444R-028 be used as a direct replacement for the 6444-028?

A: Yes. The 6444R-028 provides electrical and mechanical equivalence to the 6444-028. All voltage ratings, current capacities, winding configurations, mounting type, termination style, and physical dimensions are identical.

Q: What is the difference between the 6444-028 and 6444R-028?

A: The primary differences are product status and compliance certification. The 6444-028 is obsolete and RoHS non-compliant. The 6444R-028 is an active product with RoHS3 compliance. Electrical and mechanical specifications are identical.

Q: Are there any dimensional or mounting differences?

A: No. Both components share identical dimensions (41.28mm L × 33.32mm W × 33.32mm H) and through-hole PC pin termination. Direct PCB mounting compatibility is maintained.

Q: What isolation voltage do these transformers provide?

A: Both the 6444-028 and 6444R-028 provide 4000Vrms isolation voltage between primary and secondary windings.

Q: Can these transformers operate with both 115V and 230V primary inputs?

A: Yes. Both components feature dual primary windings that support 115V or 230V input configuration. Secondary output is independently configurable as 14V (parallel) or 28V (series) through winding connection selection.

Q: What is the maximum output current for each secondary configuration?

A: In parallel configuration, maximum output current is 360mA at 14V. In series configuration, maximum output current is 180mA at 28V. Both configurations are supported by the 5VA power rating.