API Delevan 6443-036 Equivalent & Substitute Parts

Part Overview

The API Delevan 6443-036 is a laminated core power transformer rated at 2.5VA with dual primary and secondary windings. This through-hole mounted component provides selectable output configurations through parallel (18V, 140mA) or series (36V, 70mA) winding connections. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

6443-036

API Delevan Inc.In Stock: 10636443-036 Datasheet

Current PartRFQ

6443R-036

API Delevan Inc.In Stock: 9476443R-036 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 6443-036 is determined by strict equivalence across electrical and mechanical parameters. The critical substitution criteria are:

• Identical power rating (2.5VA)
• Matching primary voltage options (115V, 230V)
• Matching secondary voltage configurations (parallel 18V, series 36V)
• Identical output current specifications (parallel 140mA, series 70mA)
• Dual primary and dual secondary winding architecture
• Through-hole mounting with PC pin termination
• Equivalent isolation voltage (4000Vrms)
• Compatible physical envelope (34.93mm L × 28.58mm W × 30.15mm H)

The API Delevan 6443R-036 meets all substitution criteria as a direct functional equivalent with identical electrical performance and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The API Delevan 6443R-036 is the direct substitute for the obsolete 6443-036. Both parts are manufactured by API Delevan Inc. and provide identical electrical and mechanical performance. The 6443R-036 is currently in active production status with 906 units available in inventory.

The primary distinction between these parts is regulatory compliance. The 6443R-036 achieves ROHS3 compliance, whereas the 6443-036 is non-compliant. For applications subject to RoHS directives or requiring compliance documentation, the 6443R-036 is the appropriate selection. Both parts maintain equivalent REACH and ECCN classifications.

Frequently Asked Questions (FAQ)

Q: Can the 6443R-036 be used as a direct replacement for the 6443-036?

A: Yes. The 6443R-036 provides identical electrical specifications, winding configuration, and physical dimensions. No circuit modifications or PCB redesign is required.

Q: What is the difference between these two part numbers?

A: The primary difference is product status and RoHS compliance. The 6443-036 is obsolete and non-compliant with RoHS3. The 6443R-036 is an active production part with ROHS3 compliance.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 34.93mm L × 28.58mm W with a maximum seated height of 30.15mm. Through-hole PC pin termination is identical on both parts.

Q: Do both parts support the same voltage and current configurations?

A: Yes. Both the 6443-036 and 6443R-036 support dual primary windings (115V, 230V) and dual secondary windings with parallel (18V, 140mA) or series (36V, 70mA) output options.

Q: Is the isolation voltage the same?

A: Yes. Both parts provide 4000Vrms isolation voltage.

Q: Which part should be specified for new designs?

A: The 6443R-036 should be specified for new designs due to its active production status and ROHS3 compliance.