DP-241-4-20 Equivalent & Substitute Parts

Part Overview

The DP-241-4-20 is a laminated core power transformer manufactured by Signal Transformer, rated at 6VA with dual primary windings (115V/230V) and a single center-tapped secondary winding (20V, 300mA maximum output). This chassis-mount transformer is classified as Active product status and is ROHS3 compliant. Equivalent parts are identified when they maintain identical electrical specifications and mechanical compatibility within the allowed parameters for this transformer category.

Substiute Parts

DP-241-4-20

Signal TransformerIn Stock: 842DP-241-4-20 Datasheet

Current PartRFQ

FD4-20

Triad MagneticsIn Stock: 1192FD4-20 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The FD4-20 manufactured by Triad Magnetics qualifies as a direct substitute for the DP-241-4-20 based on the following critical parameters:

• Identical power rating (6VA)
• Matching primary voltage configuration (115V, 230V dual windings)
• Identical secondary voltage and center-tap configuration (20V with center tap)
• Equivalent maximum output current (300mA)
• Same core type (Laminated)
• Identical isolation voltage specification (2500V)
• Compatible mounting type (Chassis Mount)
• Matching termination options (Solder, Quick Connect)
• Equivalent compliance status (ROHS3 Compliant)

Substitution is valid when the receiving circuit requires these exact electrical and mechanical characteristics. Physical dimensions and weight are within acceptable tolerance ranges for chassis-mount applications.

Parameter Comparison

Engineering Selection Recommendations

Both the DP-241-4-20 and FD4-20 are Active product status components with identical regulatory compliance profiles. Selection between these parts should be based on:

• Availability: FD4-20 inventory (1111 pcs) versus DP-241-4-20 inventory (745 pcs)
• Mechanical fit: Physical dimensions differ slightly (DP-241-4-20: 60.30mm L × 33.30mm W × 36.20mm H; FD4-20: 65.07mm L × 31.75mm W × 34.93mm H). Verify chassis mounting clearances for your specific application.
• Termination connector specification: FD4-20 specifies 0.187" (4.7mm) quick connect terminals. Confirm compatibility with existing harness or PCB connections.

Both transformers maintain equivalent electrical performance and regulatory standing for direct substitution in applications requiring 6VA, 115V/230V to 20V center-tapped power conversion.

Frequently Asked Questions (FAQ)

Q: Can the FD4-20 replace the DP-241-4-20 in existing designs?

A: Yes, provided that mechanical dimensions and quick connect terminal specifications (0.187" for FD4-20) are compatible with your chassis layout and wiring harness.

Q: Are the isolation voltage specifications equivalent?

A: Both transformers provide 2500V isolation. The DP-241-4-20 specifies 2500Vrms while the FD4-20 specifies 2500VAC; these represent the same isolation capability.

Q: What are the physical dimension differences?

A: The DP-241-4-20 measures 60.30mm L × 33.30mm W × 36.20mm H. The FD4-20 measures 65.07mm L × 31.75mm W × 34.93mm H. Verify clearances in your specific mounting application.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS code 8504.31.4035.

Q: Are the termination styles compatible?

A: Both support Solder and Quick Connect termination. The FD4-20 specifies 0.187" (4.7mm) quick connect terminals. Confirm compatibility with your existing connector specifications.