API Delevan 6444-020 Power Transformer: Equivalent & Substitute Parts

Part Overview

The API Delevan 6444-020 is a laminated core power transformer rated at 5VA with dual primary and secondary windings. The primary winding supports 115V or 230V input, while the secondary winding provides parallel 10V or series 20V output configurations. This through-hole mounted transformer is designed for PC pin termination and offers 4000Vrms isolation voltage.

The 6444-020 carries an obsolete product status. Locating equivalent substitute parts is necessary for ongoing system maintenance, repair, and new design implementations where this transformer specification remains functionally required.

Substiute Parts

6444-020

API Delevan Inc.In Stock: 9526444-020 Datasheet

Current PartRFQ

6444R-020

API Delevan Inc.In Stock: 11256444R-020 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6444-020 is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Power rating: 5VA
• Primary voltage configuration: Dual winding supporting 115V and 230V
• Secondary voltage configuration: Dual winding supporting parallel 10V and series 20V
• Output current capacity: Parallel 500mA, Series 250mA
• Isolation voltage: 4000Vrms

Mechanical Specifications:

• Core type: Laminated
• Mounting method: Through Hole
• Termination interface: PC Pin
• Physical envelope: 41.28mm L × 33.32mm W × 33.32mm H

Regulatory & Compliance Status:

• RoHS compliance status
• REACH classification
• ECCN and HTSUS codes

The 6444R-020 qualifies as a direct substitute because it maintains identical electrical and mechanical parameters while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: API Delevan 6444R-020

The 6444R-020 is the direct equivalent for the obsolete 6444-020. Both parts share identical electrical performance specifications, mechanical form factor, and mounting interface. The 6444R-020 provides two significant advantages:

1. Product Status: The 6444R-020 maintains active product status with current manufacturing support and documented availability (1060 pieces in stock versus 929 pieces for the obsolete 6444-020).

2. Regulatory Compliance: The 6444R-020 achieves ROHS3 compliance, addressing modern environmental and regulatory requirements. The original 6444-020 is RoHS non-compliant, which may restrict its use in new designs or applications subject to RoHS directives.

Both parts maintain identical REACH and ECCN classifications, ensuring no change to export control or hazardous substance documentation requirements.

For applications where the 6444-020 is currently specified, direct substitution with the 6444R-020 is supported by complete electrical and mechanical equivalence. No circuit redesign, PCB layout modification, or system re-qualification is required.

Frequently Asked Questions (FAQ)

Q: Can the 6444R-020 replace the 6444-020 in existing designs?

A: Yes. The 6444R-020 is electrically and mechanically identical to the 6444-020. All electrical parameters (power rating, voltage configurations, current ratings, isolation voltage) and physical specifications (dimensions, weight, mounting type, termination style) are equivalent. Direct substitution is supported without circuit modification.

Q: What is the difference between the 6444-020 and 6444R-020?

A: The primary differences are product status and RoHS compliance. The 6444-020 is obsolete and RoHS non-compliant. The 6444R-020 is an active product with ROHS3 compliance. All functional and mechanical specifications are identical.

Q: Does the 6444R-020 fit the same PCB footprint as the 6444-020?

A: Yes. Both parts have identical dimensions (41.28mm L × 33.32mm W × 33.32mm H), use through-hole mounting, and employ PC pin termination. No PCB layout changes are required.

Q: Are there any electrical performance differences between these parts?

A: No. Both transformers provide identical electrical specifications: 5VA power rating, dual primary windings (115V/230V), dual secondary windings (10V parallel or 20V series), 500mA parallel output current, 250mA series output current, and 4000Vrms isolation voltage.

Q: Why should I use the 6444R-020 instead of the 6444-020?

A: The 6444-020 is obsolete with limited remaining inventory. The 6444R-020 is an active product with current manufacturing support and greater availability. Additionally, the 6444R-020 meets ROHS3 compliance requirements, which is necessary for applications subject to RoHS directives or customer specifications.

Q: Is the 6444R-020 suitable for new product designs?

A: Yes. The 6444R-020 is the recommended choice for new designs requiring this transformer specification. It provides active product status, regulatory compliance, and equivalent performance to the obsolete 6444-020.

Q: What is the inventory status for these parts?

A: The 6444-020 (obsolete) has 929 pieces in stock. The 6444R-020 (active) has 1060 pieces in stock. For long-term availability and new designs, the 6444R-020 is the preferred selection.