API Delevan 6055-056 Power Transformer: Equivalent & Substitute Parts

Part Overview

The API Delevan 6055-056 is a 48VA laminated core power transformer with dual primary and secondary windings, designed for through-hole mounting applications. The primary accepts 115V or 230V input, with secondary outputs configurable as parallel 28V at 1.7A or series 56V at 850mA. This part is classified as obsolete, making identification of active equivalent models essential for ongoing procurement and system maintenance.

Substiute Parts

6055-056

API Delevan Inc.In Stock: 12636055-056 Datasheet

Current PartRFQ

6055R-056

API Delevan Inc.In Stock: 8996055R-056 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 6055-056 can be substituted with the 6055R-056 based on the following electrical and mechanical equivalence criteria:

Electrical Parameters (Must Match):

• Power rating: 48VA
• Primary voltage options: 115V, 230V
• Secondary voltage configurations: Parallel 28V / Series 56V
• Output current ratings: Parallel 1.7A / Series 850mA
• Winding configuration: Dual primary, dual secondary
• Isolation voltage: 1500Vrms

Mechanical Parameters (Must Match):

• Core type: Laminated
• Mounting type: Through Hole
• Termination style: PC Pin
• Physical dimensions: 47.63mm L × 39.67mm W × 36.50mm H (seated max)
• Weight: 1.4 lbs (635 g)

The 6055R-056 maintains identical electrical performance and mechanical compatibility while offering active product status and improved compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The 6055R-056 is the direct active equivalent of the obsolete 6055-056. Selection between these parts should be based on the following factors:

For New Designs and Procurement: Use the 6055R-056. This part maintains full electrical and mechanical compatibility while offering active product status and ROHS3 compliance. The active status ensures continued availability and manufacturer support.

For Legacy System Maintenance: The 6055-056 remains available in inventory (1174 units) for applications requiring the original part number. However, the 6055R-056 provides identical functional performance and can be substituted in existing designs without circuit modification.

Compliance Considerations: The 6055R-056 meets ROHS3 requirements, whereas the 6055-056 is non-compliant. Systems subject to RoHS regulations should transition to the 6055R-056.

Frequently Asked Questions (FAQ)

Q: Can the 6055R-056 be used as a direct replacement for the 6055-056? A: Yes. The 6055R-056 provides identical electrical performance (48VA, dual primary/secondary windings, 115V/230V primary, 28V/56V secondary outputs) and mechanical compatibility (through-hole mounting, PC pin termination, identical dimensions and weight). No circuit modifications are required.

Q: What is the difference between the 6055-056 and 6055R-056? A: The primary differences are product status and compliance. The 6055-056 is obsolete and RoHS non-compliant. The 6055R-056 is active and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are the physical dimensions identical? A: Yes. Both parts measure 47.63mm L × 39.67mm W with a maximum seated height of 36.50mm. They weigh 1.4 lbs (635 g) and use identical through-hole PC pin termination.

Q: Which part should be specified for new designs? A: Specify the 6055R-056 for new designs. This part is active, offers improved compliance posture, and provides the same electrical and mechanical performance as the obsolete 6055-056.

Q: Are there any electrical performance differences? A: No. Both parts deliver 48VA power with identical primary voltage options (115V, 230V), secondary voltage configurations (parallel 28V or series 56V), output current ratings (parallel 1.7A or series 850mA), and isolation voltage (1500Vrms).