Equivalent & Substitute Parts for Tamura 3FL56-200

Part Overview

The Tamura 3FL56-200 is a 12VA laminated core power transformer with dual primary and secondary windings, designed for through-hole mounting applications. It supports dual input voltages (115V, 230V) and dual output configurations (parallel 28V/420mA or series 56V/210mA). The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and component procurement.

Substiute Parts

3FL56-200

TamuraIn Stock: 12073FL56-200 Datasheet

Current PartRFQ

FP56-200

Triad MagneticsIn Stock: 931FP56-200 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Triad Magnetics FP56-200 qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

Electrical Compatibility:

• Identical power rating (12VA)
• Matching primary voltage inputs (115V, 230V)
• Matching secondary voltage outputs (parallel 28V, series 56V)
• Equivalent winding configuration (dual primary, dual secondary)
• Equivalent isolation voltage rating (2000Vrms exceeds 1500Vrms requirement)

Mechanical Compatibility:

• Identical mounting type (through hole)
• Identical termination style (PC pin)
• Matching footprint dimensions (63.50mm L × 50.80mm W)
• Compatible seated height (26.97mm vs. 27.05mm, within tolerance)

Minor Parameter Variations:

• Output current (parallel): 400mA vs. 420mA (within acceptable margin)
• Output current (series): 200mA vs. 210mA (within acceptable margin)
• Isolation voltage: 2000Vrms vs. 1500Vrms (enhanced specification)

These variations represent equivalent or superior performance characteristics and do not preclude substitution.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Status Consideration: The Tamura 3FL56-200 is classified as obsolete. The Triad Magnetics FP56-200 is classified as active, ensuring ongoing availability and manufacturing support.

Compliance and Certification: Both parts share identical ECCN (EAR99) and HTSUS (8504.31.4035) classifications. The FP56-200 provides additional compliance documentation: RoHS3 Compliant and REACH Unaffected status, which may be required for certain applications or regulatory environments.

Electrical Performance: The FP56-200 delivers equivalent electrical performance across all critical parameters. The enhanced isolation voltage (2000Vrms vs. 1500Vrms) provides additional safety margin without introducing incompatibility.

Physical Integration: Footprint and mounting dimensions are identical, ensuring direct PCB compatibility. The minimal height difference (0.08mm) is within standard manufacturing tolerances and does not affect mechanical clearance or assembly procedures.

Inventory and Availability: The FP56-200 maintains active inventory status (871 pcs in stock) compared to the obsolete 3FL56-200 (1146 pcs), supporting long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the Triad Magnetics FP56-200 be used as a direct replacement for the Tamura 3FL56-200 in existing designs?

A: Yes. The FP56-200 meets all electrical and mechanical specifications required for direct substitution. Identical primary and secondary voltages, matching winding configurations, and compatible mounting and termination styles enable direct PCB replacement without circuit modification.

Q: What is the significance of the output current difference (420mA vs. 400mA parallel, 210mA vs. 200mA series)?

A: The FP56-200 output currents are slightly lower but remain within acceptable operating margins for 12VA transformer specifications. Applications designed for the 3FL56-200 maximum ratings will operate within the FP56-200 specifications. If your design requires the full 420mA or 210mA output, verify that the FP56-200 current ratings are sufficient for your specific load.

Q: Does the higher isolation voltage of the FP56-200 (2000Vrms vs. 1500Vrms) affect compatibility?

A: No. Enhanced isolation voltage represents an improved specification that does not compromise compatibility. The FP56-200 exceeds the isolation requirements of the original design, providing additional safety margin.

Q: Are there any packaging differences between these parts?

A: The Tamura 3FL56-200 packaging is listed as "-" (unspecified). The Triad Magnetics FP56-200 is packaged in a box. Both use identical through-hole PC pin termination and footprint dimensions, so packaging format does not affect PCB integration.

Q: What compliance certifications should I consider when selecting between these parts?

A: Both parts share identical export control classifications (EAR99, HTSUS 8504.31.4035). The FP56-200 provides explicit RoHS3 Compliance and REACH Unaffected certifications, which may be mandatory for applications subject to EU environmental regulations or customer compliance requirements.

Q: Is the 0.08mm height difference (27.05mm vs. 26.97mm) significant for PCB assembly?

A: No. This difference is negligible and falls within standard manufacturing tolerances. It does not affect component clearance, solder joint formation, or mechanical assembly procedures.

Q: Why is the Tamura 3FL56-200 classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The Triad Magnetics FP56-200 remains in active production, ensuring continued availability for new designs and ongoing system support.