DP-241-7-120 Equivalent & Substitute Parts

Part Overview

The DP-241-7-120 is a laminated core power transformer manufactured by Signal Transformer, rated at 56VA with dual primary windings (115V/230V) and a single 120V secondary winding with center tap. This chassis-mounted transformer is designed for applications requiring isolated AC power conversion with a maximum output current of 500mA. The part is currently active in production with 937 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

DP-241-7-120

Signal TransformerIn Stock: 1019DP-241-7-120 Datasheet

Current PartRFQ

FD7-120

Triad MagneticsIn Stock: 974FD7-120 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The FD7-120 manufactured by Triad Magnetics qualifies as a direct substitute for the DP-241-7-120 based on the following critical parameters:

• Electrical Equivalence: Identical power rating (56VA), primary voltage configuration (115V/230V dual), secondary voltage (120V), maximum output current (500mA), and isolation voltage (2500V minimum)
• Winding Configuration: Both parts feature dual primary windings and single secondary winding with center tap
• Core Technology: Both utilize laminated core construction
• Mounting & Termination: Both are chassis-mounted with solder and quick connect termination options
• Regulatory Compliance: Both maintain ROHS3 compliance and EAR99 classification
• Physical Compatibility: Dimensions and height are within acceptable tolerance ranges for chassis mounting applications

Parameter Comparison

Engineering Selection Recommendations

Both the DP-241-7-120 and FD7-120 are active production parts with full ROHS3 compliance and identical regulatory classification. Selection between these parts should be based on:

• Availability: DP-241-7-120 has 937 units in stock; FD7-120 has 904 units in stock
• Packaging: DP-241-7-120 is supplied in bulk packaging; FD7-120 is supplied in box packaging
• Mechanical Fit: Dimensional variations are minimal (width difference of 3.18mm, height difference of 0.65mm). Verify chassis cutout and mounting hole tolerances for your specific application
• Termination Specification: FD7-120 specifies quick connect pin size (0.187" / 4.7mm); confirm compatibility with your PCB or wiring harness

Frequently Asked Questions (FAQ)

Q: Can FD7-120 be used as a direct replacement for DP-241-7-120?

A: Yes. Both transformers meet identical electrical specifications (56VA, 115V/230V primary, 120V secondary, 500mA output, 2500V isolation) and share the same core technology, winding configuration, and mounting type. Dimensional and weight specifications are equivalent within acceptable tolerances.

Q: What are the key compatibility factors when substituting these parts?

A: The critical factors are: (1) electrical ratings must match exactly, (2) primary and secondary voltage configurations must be identical, (3) winding topology (dual primary, single secondary with center tap) must be preserved, (4) mounting type must be compatible with your chassis design, and (5) termination pin specifications must match your connection method.

Q: Are there dimensional differences that could affect installation?

A: Minor dimensional variations exist. The FD7-120 is 3.18mm narrower and 0.65mm shorter than the DP-241-7-120. These differences are typically negligible for chassis-mounted applications, but verify your specific mounting hole spacing and clearance requirements before substitution.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the DP-241-7-120 and FD7-120 are ROHS3 compliant, REACH unaffected, and classified as EAR99 under export control regulations. Both share the same HTSUS commodity code (8504.31.4065).

Q: What is the difference between bulk and box packaging?

A: Bulk packaging typically provides loose components suitable for high-volume manufacturing environments. Box packaging provides individual unit protection and is common for lower-volume or field replacement scenarios. Electrical and mechanical specifications are identical regardless of packaging type.