6447-020 Laminated Power Transformer 30VA Through Hole

Part Overview

The 6447-020 is a laminated core power transformer manufactured by API Delevan Inc., rated for 30VA maximum power with dual primary and secondary windings. This transformer operates at 115V or 230V primary voltage with secondary voltage options of 10V (parallel) or 20V (series), delivering maximum output currents of 3A (parallel) or 1.5A (series). The part is currently listed as obsolete, necessitating identification of active equivalent substitutes for new designs and ongoing maintenance applications.

Substiute Parts

6447-020

API Delevan Inc.In Stock: 7596447-020 Datasheet

Current PartRFQ

6447R-020

API Delevan Inc.In Stock: 11866447R-020 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 6447R-020 qualifies as a direct substitute for the 6447-020 based on electrical and mechanical parameter equivalence. Both parts maintain identical specifications across all critical substitution criteria:

Key Parameters for Substitution:

• Power rating: 30VA
• Primary voltage configuration: 115V, 230V
• Secondary voltage outputs: Parallel 10V, Series 20V
• Output current capacity: Parallel 3A, Series 1.5A
• Winding configuration: Dual primary, Dual secondary
• Mounting type: Through Hole
• Termination style: PC Pin
• Isolation voltage: 4000Vrms
• Physical dimensions: 66.68mm L × 55.55mm W × 39.67mm height
• Core type: Laminated

The primary distinction between the two parts is product status and compliance certification, with the 6447R-020 representing the active production variant in the 6447 series.

Parameter Comparison

Engineering Selection Recommendations

The 6447R-020 is the appropriate selection for new designs and ongoing applications. As an active production part with ROHS3 compliance, it offers superior regulatory alignment compared to the obsolete 6447-020. Both parts are electrically and mechanically equivalent, supporting direct pin-for-pin substitution without circuit modifications. The 6447R-020 provides continuity of supply through active inventory (1084 units in stock) and established manufacturing support from API Delevan Inc.

Frequently Asked Questions (FAQ)

Q: Can the 6447R-020 directly replace the 6447-020 in existing applications? A: Yes. Electrical specifications, voltage ratings, current capacities, winding configurations, mounting type, and physical dimensions are identical between both parts, enabling direct substitution.

Q: What is the primary difference between these two parts? A: The 6447R-020 is the active production equivalent of the obsolete 6447-020. The 6447R-020 additionally features ROHS3 compliance, meeting modern regulatory requirements.

Q: Are there any mechanical compatibility concerns with substitution? A: No. Both parts share identical dimensions (66.68mm L × 55.55mm W × 39.67mm height), mounting type (Through Hole), termination style (PC Pin), and weight (1.2 lbs / 544.3 g).

Q: What voltage configurations are available with this transformer? A: Both parts support dual primary windings at 115V or 230V and dual secondary windings delivering either 10V at 3A (parallel configuration) or 20V at 1.5A (series configuration).

Q: Does this transformer include a center tap connection? A: No. Neither part includes a center tap; both feature dual independent windings for series or parallel output configuration only.

Q: What is the isolation voltage rating? A: Both the 6447-020 and 6447R-020 provide 4000Vrms isolation between primary and secondary windings.