API Delevan 6012-120 Laminated Power Transformer Equivalent & Substitute Parts

Part Overview

The API Delevan 6012-120 is a laminated core power transformer rated at 1.1VA with a 115V primary winding and dual secondary windings configured for parallel (60V, 20mA) or series (120V, 10mA) operation. This component is classified as obsolete, necessitating identification of active equivalent models to maintain supply chain continuity for legacy system maintenance and repair applications. The transformer features through-hole mounting with PC pin termination and 2500Vrms isolation voltage.

Substiute Parts

6012-120

API Delevan Inc.In Stock: 7426012-120 Datasheet

Current PartRFQ

6012R-120

API Delevan Inc.In Stock: 10826012R-120 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete 6012-120 is determined by strict equivalence across the following critical parameters:

Electrical Specifications: Primary voltage (115V), secondary voltage configuration (parallel 60V/series 120V), secondary current capacity (parallel 20mA/series 10mA), power rating (1.1VA), and isolation voltage (2500Vrms) must remain identical.

Physical & Mechanical Compatibility: Mounting type (through hole), termination style (PC pin), and physical dimensions (34.93mm L × 28.58mm W × 23.80mm H) must match to ensure direct board-level replacement without redesign.

Core Architecture: Laminated core type and dual secondary winding configuration must be preserved.

The 6012R-120 satisfies all substitution criteria as a direct functional equivalent with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The 6012R-120 is the direct substitute for the obsolete 6012-120 based on complete electrical and mechanical equivalence. All critical parameters—voltage ratings, current capacity, power rating, isolation voltage, core type, winding configuration, mounting method, and physical dimensions—are identical between the two models.

The 6012R-120 offers the additional advantage of active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment for new designs or legacy system updates. The obsolete 6012-120 should be replaced with the 6012R-120 for all applications requiring this transformer specification.

Frequently Asked Questions (FAQ)

Q: Can the 6012R-120 be used as a direct replacement for the 6012-120 without circuit modification?

A: Yes. The 6012R-120 is electrically and mechanically identical to the 6012-120. All voltage ratings, current capacities, winding configurations, mounting type, and physical dimensions match exactly, enabling direct board-level substitution without circuit redesign.

Q: What is the difference between the 6012-120 and 6012R-120 part numbers?

A: The "R" designation in the 6012R-120 indicates an updated revision of the original 6012-120 series. The 6012R-120 is the active production equivalent with ROHS3 compliance, while the 6012-120 is obsolete.

Q: Are the secondary winding configurations identical between both models?

A: Yes. Both transformers feature dual secondary windings with identical parallel (60V, 20mA) and series (120V, 10mA) configurations. The center tap is absent on both models.

Q: Do both transformers have the same physical footprint?

A: Yes. Both the 6012-120 and 6012R-120 share identical dimensions of 34.93mm length × 28.58mm width × 23.80mm height with through-hole PC pin termination, ensuring mechanical compatibility on existing PCB layouts.

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

A: Both models provide 2500Vrms isolation voltage between primary and secondary windings.

Q: Is the 6012R-120 RoHS compliant?

A: Yes. The 6012R-120 is ROHS3 compliant. The obsolete 6012-120 was non-compliant. For applications requiring RoHS compliance, the 6012R-120 is the appropriate selection.