FD7-10 Equivalent & Substitute Parts Reference

Part Overview

The FD7-10 is a laminated core power transformer manufactured by Triad Magnetics, rated at 56VA with dual primary windings (115V/230V) and a single 10V secondary winding with center tap. This chassis mount transformer is designed for applications requiring isolated AC power conversion with a maximum output current of 5A. The part is currently active in production with ROHS3 compliance and is suitable for industrial and commercial equipment integration.

Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance are maintained across alternative manufacturers. This reference enables procurement flexibility and supply chain continuity.

Substiute Parts

FD7-10

Triad MagneticsIn Stock: 781FD7-10 Datasheet

Current PartRFQ

DP-241-7-10

Signal TransformerIn Stock: 1014DP-241-7-10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The FD7-10 accepts DP-241-7-10 as a direct substitute based on the following substitution criteria:

Electrical Equivalence:

• Identical power rating: 56VA
• Matching primary voltage configuration: 115V/230V dual winding
• Matching secondary voltage: 10V with center tap
• Matching maximum output current: 5A
• Matching isolation voltage: 2500VAC/2500Vrms

Mechanical Compatibility:

• Identical mounting type: Chassis Mount
• Compatible termination style: Solder and Quick Connect
• Comparable physical dimensions within tolerance
• Equivalent weight: 1.7 lbs (771.1 g)

Regulatory & Compliance Alignment:

• Both parts ROHS3 Compliant
• Both parts REACH Unaffected
• Identical ECCN classification: EAR99
• Identical HTSUS code: 8504.31.4065

Parameter Comparison

Engineering Selection Recommendations

Both FD7-10 and DP-241-7-10 are active production parts with identical electrical and mechanical specifications. Selection between these transformers is based on:

Availability & Lead Time: DP-241-7-10 currently maintains higher inventory (1001 pcs) compared to FD7-10 (703 pcs), supporting shorter procurement cycles when supply constraints exist.

Regulatory Compliance: Both parts satisfy ROHS3 requirements and carry identical ECCN/HTSUS classifications, ensuring equivalent compliance status for export and domestic applications.

Series Designation: FD7-10 belongs to the Quick Pack series (Triad Magnetics), while DP-241-7-10 is part of the Two-4-One™ series (Signal Transformer). Series designation does not affect electrical or mechanical interchangeability.

Physical Dimensions: Minor dimensional variations exist (FD7-10: 93.65mm L × 46.02mm W × 57.15mm H; DP-241-7-10: 93.70mm L × 49.20mm W × 57.80mm H). Verify mounting clearances in confined chassis applications before substitution.

Frequently Asked Questions (FAQ)

Q: Can DP-241-7-10 directly replace FD7-10 in existing designs?

A: Yes. Both transformers meet identical electrical specifications (56VA, 115V/230V primary, 10V secondary, 5A output, 2500VAC isolation) and share the same chassis mount configuration with compatible termination styles. Verify physical dimensions fit the available mounting space.

Q: Are there differences in isolation voltage specifications?

A: Both parts specify 2500V isolation. FD7-10 lists this as 2500VAC while DP-241-7-10 specifies 2500Vrms. These represent equivalent isolation ratings expressed in different notation conventions.

Q: What is the significance of the center tap on the secondary winding?

A: Both transformers include a center tap on the single secondary winding, enabling center-tapped rectifier configurations and providing a reference point for split-rail power supplies. This feature is identical across both parts.

Q: Do both transformers support the same termination methods?

A: Yes. Both FD7-10 and DP-241-7-10 provide Solder and Quick Connect termination options. FD7-10 specifies Quick Connect as 0.187" (4.7mm) connectors. Verify connector compatibility with your PCB or wiring harness design.

Q: Are there any compliance or certification differences?

A: No. Both transformers carry identical ROHS3 compliance status, REACH Unaffected designation, EAR99 ECCN classification, and 8504.31.4065 HTSUS code. Regulatory requirements are equivalent.

Q: What factors should determine which substitute to select?

A: Primary selection factors are inventory availability, lead time, and physical fit within your chassis. Electrical and mechanical specifications are identical. DP-241-7-10 currently offers higher stock levels. Confirm mounting dimensions accommodate the minor height and width variations before final selection.