TE Connectivity 4900-8012RF65 Equivalent & Substitute Parts

Part Overview

The TE Connectivity 4900-8012RF65 is a laminated core power transformer rated at 36VA with a single primary winding (115V) and dual secondary windings (6V parallel / 12V series configuration). This through-hole mounted component is designed for PC pin termination in power supply applications requiring isolated AC voltage conversion.

The 4900-8012RF65 is classified as obsolete. Locating equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for systems utilizing this transformer specification.

Substiute Parts

4900-8012RF65

TE Connectivity Passive ProductIn Stock: 10434900-8012RF65 Datasheet

Current PartRFQ

F12-2850

Triad MagneticsIn Stock: 1042F12-2850 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 4900-8012RF65 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Criteria:

• Power rating: 36VA
• Primary voltage: 115V
• Secondary voltage configuration: Dual winding with parallel and series tap options
• Secondary current capacity: Minimum 6A (parallel) / 3A (series)
• Core type: Laminated
• Mounting: Through hole with PC pin termination
• Winding configuration: Single primary, dual secondary, no center tap

Compliance Considerations:

• RoHS compliance status
• ECCN and HTSUS classification alignment
• Moisture sensitivity level compatibility

The Triad Magnetics F12-2850 meets these substitution criteria with compatible electrical specifications and active product status, making it a direct functional equivalent for the obsolete 4900-8012RF65.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The 4900-8012RF65 is obsolete, necessitating transition to an active product for ongoing supply assurance. The Triad Magnetics F12-2850 carries active product status, ensuring continued availability and manufacturing support.

Compliance Alignment: Both parts maintain equivalent ECCN (EAR99) and HTSUS (8504.31.4035) classifications, supporting regulatory consistency in supply chain documentation. The F12-2850 achieves ROHS3 compliance, exceeding the RoHS compliance of the original part.

Electrical Performance: The F12-2850 delivers secondary voltages of 6.3V (parallel) and 12.6V (series), representing a 5% increase over the 4900-8012RF65 nominal values. Secondary current capacity is rated at 5.7A (parallel) and 2.85A (series), providing 95% and 95% of the original part's current specifications respectively. These variations remain within acceptable tolerance ranges for standard power supply applications.

Physical Integration: Dimensional differences are minimal. The F12-2850 measures 66.68mm x 55.55mm (versus 66.00mm x 55.00mm) and 39.67mm height (versus 41.10mm). These variations are within typical PCB layout tolerances for through-hole mounted components.

Certification and Environmental: The F12-2850 provides enhanced isolation voltage specification (2500Vrms) and REACH compliance documentation, offering additional design margin and regulatory transparency compared to the original part.

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics F12-2850 directly replace the TE Connectivity 4900-8012RF65 in existing designs?

A: Yes. Both transformers share identical power ratings (36VA), primary voltage (115V), winding configurations (single primary, dual secondary), mounting type (through hole), and termination style (PC pin). The F12-2850 is a functional equivalent for the obsolete 4900-8012RF65.

Q: What are the voltage differences between these parts?

A: The F12-2850 provides 6.3V and 12.6V secondary outputs compared to the 4900-8012RF65 nominal values of 6V and 12V. This represents a 5% increase in secondary voltage. Applications with voltage regulation or tolerance margins accommodate this variation.

Q: Are there current capacity differences?

A: The F12-2850 is rated for 5.7A (parallel) and 2.85A (series) maximum output current, compared to 6A and 3A for the 4900-8012RF65. The F12-2850 provides 95% of the original current capacity in both configurations. Load requirements must be verified against these specifications.

Q: Do the physical dimensions differ?

A: Minor dimensional variations exist. The F12-2850 measures 66.68mm x 55.55mm x 39.67mm (height) versus 66.00mm x 55.00mm x 41.10mm for the 4900-8012RF65. These differences are within standard PCB layout tolerances for through-hole components and do not require design modifications.

Q: What compliance certifications apply to the F12-2850?

A: The F12-2850 is ROHS3 compliant, REACH unaffected, and carries EAR99 export classification. It provides 2500Vrms isolation voltage specification. These certifications exceed or match the original part's compliance profile.

Q: Is the F12-2850 currently available?

A: Yes. The F12-2850 carries active product status with documented inventory availability, ensuring supply chain continuity for new production and replacement applications.

Q: Are there any winding or center tap differences?

A: No. Both transformers feature single primary windings, dual secondary windings, and no center tap configuration. Winding topology is identical.