F56-350 Equivalent & Substitute Parts Reference

Part Overview

The F56-350 is a laminated core power transformer manufactured by Triad Magnetics, rated at 20VA with dual secondary windings. This through-hole mounted component is designed for Class 2/3 applications and features a single primary winding with configurable secondary output in parallel (28V, 700mA) or series (56V, 350mA) modes. The part is currently active in production with RoHS3 compliance and REACH unaffected status. Equivalent substitute parts are identified based on matching electrical specifications, mechanical dimensions, mounting characteristics, and regulatory compliance to ensure direct functional replacement in circuit designs.

Substiute Parts

F56-350

Triad MagneticsIn Stock: 734F56-350 Datasheet

Current PartRFQ

164H56

Hammond ManufacturingIn Stock: 1007164H56 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the F56-350 are identified through strict electrical and mechanical parameter matching. The substitution criteria are based on the following parameters:

Electrical Equivalence Requirements:

• Primary voltage: 115V
• Secondary voltage configuration: Parallel 28V / Series 56V
• Output current capacity: Parallel 700mA / Series 350mA
• Power rating: 20VA
• Winding configuration: Single primary, dual secondary
• Isolation voltage: 2500Vrms
• Core type: Laminated

Mechanical Equivalence Requirements:

• Mounting type: Through Hole
• Termination style: PC Pin
• Physical dimensions: 57.15mm L x 47.63mm W (height tolerance ±0.02mm acceptable)
• Weight: 0.8 lb (362.87 g)

Regulatory Equivalence Requirements:

• RoHS3 compliance
• REACH unaffected status
• ECCN: EAR99
• HTSUS: 8504.31.4035

The Hammond Manufacturing 164H56 meets all electrical, mechanical, and regulatory criteria for direct substitution with the F56-350.

Parameter Comparison

Engineering Selection Recommendations

The Hammond Manufacturing 164H56 is a direct electrical and mechanical equivalent to the Triad Magnetics F56-350. Both components are active products with identical power ratings, voltage configurations, current capacities, and winding arrangements. The physical dimensions are matched within manufacturing tolerance (height difference of 0.02mm is negligible for through-hole PCB mounting applications).

Both parts maintain RoHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent component selection. The identical ECCN and HTSUS classifications confirm regulatory equivalence for export and trade purposes.

The 164H56 is available in bulk packaging, whereas the F56-350 is supplied in box packaging. This packaging difference does not affect functional or electrical equivalence and may provide supply chain flexibility depending on procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the Hammond 164H56 be used as a direct replacement for the F56-350 in existing designs?

A: Yes. The 164H56 meets all electrical specifications (20VA, 115V primary, 28V/56V secondary, 700mA/350mA output), mechanical dimensions (57.15mm x 47.63mm, through-hole PC pin termination), and regulatory requirements (RoHS3, REACH unaffected) of the F56-350. No circuit modifications are required.

Q: Are there dimensional differences between these parts?

A: The seated height differs by 0.02mm (F56-350: 36.50mm maximum; 164H56: 36.52mm maximum). This variance is within standard manufacturing tolerance and does not affect PCB mounting or clearance in typical applications.

Q: Do both parts support parallel and series secondary configurations?

A: Yes. Both the F56-350 and 164H56 feature dual secondary windings that can be configured for parallel output (28V, 700mA) or series output (56V, 350mA).

Q: What is the difference in packaging between these parts?

A: The F56-350 is supplied in box packaging, while the 164H56 is supplied in bulk packaging. Packaging format does not affect component performance or electrical characteristics.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the F56-350 and 164H56 are RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.

Q: Can I mix F56-350 and 164H56 components in the same production batch?

A: Yes. Since both parts are electrically and mechanically equivalent with identical regulatory compliance, they can be used interchangeably in the same design without affecting performance or reliability.