Equivalent & Substitute Parts for Tamura 3FL20-600

Part Overview

The Tamura 3FL20-600 is a 12VA laminated core power transformer with dual primary and secondary windings, designed for through-hole mounting applications. The primary winding supports 115V or 230V input, while the secondary winding provides parallel 10V/1.2A or series 20V/600mA output configurations. This component is classified as obsolete, making identification of active equivalent and substitute parts essential for ongoing design support and procurement continuity.

Substiute Parts

3FL20-600

TamuraIn Stock: 10543FL20-600 Datasheet

Current PartRFQ

FP20-600

Triad MagneticsIn Stock: 811FP20-600 Datasheet

DirectRFQ

LP-20-600

Signal TransformerIn Stock: 1087LP-20-600 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Tamura 3FL20-600 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Power rating: 12VA
• Primary voltage options: 115V, 230V
• Secondary voltage outputs: Parallel 10V and Series 20V
• Secondary current capacity: Parallel 1.2A and Series 600mA
• Primary winding configuration: Dual
• Secondary winding configuration: Dual
• Mounting type: Through Hole
• Termination style: PC Pin
• Center tap: None

Allowable Variations:

• Core type (laminated or semi-toroidal construction)
• Isolation voltage (equal to or greater than 1500Vrms)
• Physical dimensions (within PCB layout tolerance)
• Height seated maximum (within assembly clearance tolerance)
• Product status (active substitutes preferred for obsolete parts)
• Compliance certifications (RoHS3, REACH status)

The identified substitute parts meet all mandatory electrical and mechanical parameters while offering active product status and enhanced compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Triad Magnetics FP20-600 (Flat Pack™ Series): This substitute provides identical electrical specifications with enhanced isolation voltage (2000Vrms versus 1500Vrms), offering additional safety margin. The part is active in production with ROHS3 compliance and REACH unaffected status, supporting modern supply chain requirements. Physical dimensions and height are equivalent within standard PCB assembly tolerances. Laminated core construction matches the original design approach.

Signal Transformer LP-20-600 (LP Series): This substitute meets all electrical and mechanical requirements with semi-toroidal core construction, an alternative to laminated design. Isolation voltage matches the original specification at 1500Vrms. The part is active in production with ROHS3 compliance and REACH unaffected status. Physical dimensions and height are equivalent within standard PCB assembly tolerances. Semi-toroidal construction may offer different thermal and EMI characteristics compared to laminated design.

Both substitutes are suitable for direct replacement in applications where the Tamura 3FL20-600 is specified, provided PCB layout accommodates the minor height variations (maximum 0.13mm difference).

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics FP20-600 and Signal Transformer LP-20-600 be used interchangeably with the Tamura 3FL20-600?

A: Yes. Both substitute parts meet all mandatory electrical parameters (12VA power rating, 115V/230V primary, 10V parallel and 20V series secondary outputs, 1.2A and 600mA current ratings, dual primary and secondary windings, through-hole mounting, PC pin termination). Physical dimensions are identical, and height variations are within standard PCB assembly tolerances.

Q: What is the difference between laminated and semi-toroidal core construction?

A: The Tamura 3FL20-600 and Triad Magnetics FP20-600 use laminated core construction. The Signal Transformer LP-20-600 uses semi-toroidal construction. Both core types meet the specified electrical performance parameters. Core type selection depends on application-specific requirements for thermal performance, EMI characteristics, and mechanical robustness, which are not differentiated in the provided specifications.

Q: Does the higher isolation voltage of the Triad Magnetics FP20-600 affect compatibility?

A: No. The Triad Magnetics FP20-600 provides 2000Vrms isolation versus the original 1500Vrms specification. Higher isolation voltage is a superset of the original requirement and does not create compatibility issues. This represents an enhancement for applications requiring additional safety margin.

Q: Are there packaging differences between the substitute parts?

A: Yes. The Tamura 3FL20-600 is packaged as individual units. The Triad Magnetics FP20-600 is supplied in boxes. The Signal Transformer LP-20-600 is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility; it reflects supplier logistics and inventory management practices.

Q: What compliance certifications apply to each part?

A: The Tamura 3FL20-600 compliance status is not specified in available documentation. The Triad Magnetics FP20-600 is ROHS3 compliant and REACH unaffected. The Signal Transformer LP-20-600 is ROHS3 compliant and REACH unaffected. Both active substitutes meet current regulatory requirements for electronic component manufacturing and distribution.

Q: Are there any dimensional constraints for PCB layout?

A: All three parts share identical length and width dimensions (63.50mm x 50.80mm). Height variations are minimal: Tamura 3FL20-600 at 27.05mm, Triad Magnetics FP20-600 at 26.97mm, and Signal Transformer LP-20-600 at 27.10mm. These differences (maximum 0.13mm) are within standard PCB assembly clearance tolerances and do not require layout modifications.