Equivalent & Substitute Parts for Tamura 3FS-456

Part Overview

The Tamura 3FS-456 is a laminated core power transformer rated at 6VA with dual secondary windings, designed for through-hole mounting applications. The primary winding operates at 115V, while the dual secondary windings provide configurable output: 28V at 220mA in parallel configuration or 56V at 110mA in series configuration. This transformer is classified as Active product status and is RoHS Compliant, making it suitable for modern electronic equipment requiring isolated power conversion in compact form factors.

Equivalent parts are necessary when the primary manufacturer's stock is unavailable, when alternative packaging formats are required, or when supply chain optimization demands component standardization across multiple suppliers while maintaining identical electrical and mechanical performance.

Substiute Parts

3FS-456

TamuraIn Stock: 8423FS-456 Datasheet

Current PartRFQ

F56-110

Triad MagneticsIn Stock: 931F56-110 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Tamura 3FS-456 is determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish valid substitution:

Electrical Parameters (Must Match Exactly):

• Primary voltage: 115V
• Secondary voltage configuration: Parallel 28V and Series 56V
• Secondary current capacity: Parallel 220mA and Series 110mA
• Power rating: 6VA
• Isolation voltage: 2500Vrms
• Core type: Laminated
• Winding configuration: Single primary, dual secondary

Mechanical Parameters (Must Match Exactly):

• Mounting type: Through Hole
• Termination style: PC Pin
• Physical dimensions compatible with PCB layout requirements

Compliance Parameters (Must Match or Exceed):

• RoHS status: RoHS Compliant or higher
• ECCN classification: EAR99

The Triad Magnetics F56-110 meets all substitution criteria and is classified as an equivalent part for the Tamura 3FS-456.

Parameter Comparison

Engineering Selection Recommendations

The Triad Magnetics F56-110 is a direct electrical and mechanical equivalent to the Tamura 3FS-456. Both components are classified as Active product status and meet or exceed RoHS compliance requirements. The F56-110 achieves ROHS3 compliance, which represents a higher environmental standard than the base RoHS Compliant designation of the 3FS-456.

Physical dimensions are within acceptable tolerance for through-hole PCB mounting applications. The F56-110 dimensions (41.28mm L x 33.32mm W x 33.32mm H) are slightly smaller than the 3FS-456 (41.50mm L x 34.83mm W x 34.55mm H), which presents no compatibility issues for standard PCB layouts.

The primary distinction between these components is packaging format: the Tamura 3FS-456 is supplied in tube packaging, while the Triad Magnetics F56-110 is supplied in box packaging. This difference affects inventory management and handling procedures but does not impact electrical performance or mechanical compatibility.

Both components carry identical ECCN classification (EAR99) and HTSUS codes, confirming regulatory equivalence for export and import purposes.

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics F56-110 be used as a direct replacement for the Tamura 3FS-456 in existing PCB designs?

A: Yes. The F56-110 meets all electrical specifications (6VA power rating, 115V primary, 28V/56V secondary outputs, 220mA/110mA current capacity, 2500Vrms isolation) and mechanical requirements (through-hole mounting, PC pin termination). Physical dimensions are within acceptable tolerance for standard PCB layouts.

Q: What is the significance of the packaging difference between tube and box formats?

A: Packaging format affects component handling, storage, and inventory management procedures but does not influence electrical performance or mechanical compatibility. Tube packaging typically accommodates automated insertion equipment, while box packaging may require manual handling or different feeder systems. Component selection should consider manufacturing process requirements.

Q: Are there compliance differences between the Tamura 3FS-456 and Triad Magnetics F56-110?

A: Both components are RoHS compliant. The F56-110 achieves ROHS3 compliance, which represents enhanced environmental standards. Both carry identical ECCN (EAR99) and HTSUS (8504.31.4035) classifications, confirming regulatory equivalence.

Q: What parameters must remain identical for substitution to be valid?

A: All electrical parameters must match exactly: 6VA power rating, 115V primary voltage, 28V parallel and 56V series secondary voltages, 220mA parallel and 110mA series current capacity, 2500Vrms isolation voltage, laminated core type, dual secondary winding configuration, and single primary winding. Mechanical parameters must also match: through-hole mounting type and PC pin termination style.

Q: Are there any dimensional constraints that would prevent the F56-110 from fitting in existing designs?

A: The F56-110 dimensions (41.28mm L x 33.32mm W x 33.32mm H) are slightly smaller than the 3FS-456 (41.50mm L x 34.83mm W x 34.55mm H). This size difference presents no compatibility issues for standard through-hole PCB layouts and may provide additional design flexibility.

Q: What inventory status should be considered when selecting between these components?

A: The Tamura 3FS-456 has 787 pieces in stock, while the Triad Magnetics F56-110 has 859 pieces in stock. Both components maintain active product status with established supply chains.