API Delevan 6055-120 Laminated Power Transformer Equivalent & Substitute Parts

Part Overview

The API Delevan 6055-120 is a laminated core power transformer rated at 48VA with dual primary and secondary windings. This through-hole mounted component features selectable voltage configurations (115V or 230V primary input; 60V parallel or 120V series secondary output) and is designed for PC pin termination applications.

The 6055-120 carries an obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for legacy systems utilizing this transformer specification.

Substiute Parts

6055-120

API Delevan Inc.In Stock: 10686055-120 Datasheet

Current PartRFQ

6055R-120

API Delevan Inc.In Stock: 12666055R-120 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 6055-120 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters (Must Match Exactly):

• Power rating: 48VA
• Primary voltage options: 115V, 230V
• Secondary voltage configurations: Parallel 60V, Series 120V
• Output current specifications: Parallel 800mA, Series 400mA
• Isolation voltage: 1500Vrms
• Winding configuration: Dual primary, dual secondary
• Center tap: None

Mechanical Parameters (Must Match Exactly):

• Core type: Laminated
• Mounting type: Through Hole
• Termination style: PC Pin
• Physical dimensions: 47.63mm L × 39.67mm W
• Maximum seated height: 36.50mm

The 6055R-120 manufactured by API Delevan Inc. satisfies all electrical and mechanical substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 6055R-120 is a direct electrical and mechanical equivalent to the 6055-120. Selection between these parts should be based on the following factors:

Product Status Consideration: The 6055-120 is classified as obsolete, while the 6055R-120 maintains active product status. For new designs or ongoing production, the 6055R-120 is the appropriate selection to ensure continued availability and manufacturer support.

Regulatory Compliance: The 6055R-120 is ROHS3 compliant, whereas the 6055-120 is non-compliant. Applications subject to RoHS regulations or requiring compliance documentation should specify the 6055R-120. Both parts maintain REACH Unaffected status and carry the same ECCN (EAR99) and HTSUS (8504.31.4065) classifications.

Functional Equivalence: All electrical parameters, mechanical dimensions, and performance specifications are identical between the two parts. The 6055R-120 provides a direct drop-in replacement for the 6055-120 in existing circuit designs without modification to PCB layouts, wiring, or electrical connections.

Supply Chain Availability: Current inventory data indicates 1156 units of the 6055R-120 are available, compared to 993 units of the 6055-120. The active status of the 6055R-120 ensures continued procurement capability for future requirements.

Frequently Asked Questions (FAQ)

Q: Can the 6055R-120 be used as a direct replacement for the 6055-120 in existing designs?

A: Yes. The 6055R-120 is electrically and mechanically identical to the 6055-120. All voltage ratings, current specifications, winding configurations, physical dimensions, and mounting characteristics are equivalent. No circuit modifications or PCB redesign is required.

Q: What is the difference between the 6055-120 and 6055R-120?

A: The primary differences are product status and regulatory compliance. The 6055-120 is obsolete and RoHS non-compliant. The 6055R-120 is an active product with ROHS3 compliance. Electrical and mechanical specifications are identical.

Q: Are the physical dimensions and mounting footprints identical?

A: Yes. Both transformers have identical dimensions (47.63mm L × 39.67mm W), maximum seated height (36.50mm), and through-hole PC pin termination. They are mechanically interchangeable on PCBs designed for either part number.

Q: Does the 6055R-120 support the same voltage configurations as the 6055-120?

A: Yes. Both parts support dual primary windings (115V or 230V selectable) and dual secondary windings (60V parallel or 120V series selectable). Output current ratings are identical: 800mA in parallel configuration and 400mA in series configuration.

Q: What is the isolation voltage rating for both transformers?

A: Both the 6055-120 and 6055R-120 are rated for 1500Vrms isolation voltage between primary and secondary windings.

Q: Is the 6055R-120 suitable for applications requiring RoHS compliance?

A: Yes. The 6055R-120 is ROHS3 compliant. The 6055-120 is not RoHS compliant. For applications subject to RoHS regulations, the 6055R-120 is the appropriate selection.

Q: Are there any differences in weight or physical characteristics?

A: No. Both transformers weigh 1.4 lbs (635 g) and share identical physical characteristics, including core type (laminated), winding configuration (dual primary, dual secondary), and absence of center tap.