DP-241-5-28 Equivalent & Substitute Parts

Part Overview

The DP-241-5-28 is a laminated core power transformer manufactured by Signal Transformer, rated at 12VA with dual primary windings (115V/230V) and a single secondary winding (28V, 420mA max output). This chassis-mount transformer features a center tap and solder/quick connect termination, designed for applications requiring isolated AC power conversion. The part is currently active in production with full RoHS3 compliance and REACH unaffected status. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter set.

Substiute Parts

DP-241-5-28

Signal TransformerIn Stock: 1141DP-241-5-28 Datasheet

Current PartRFQ

FD5-28

Triad MagneticsIn Stock: 1165FD5-28 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The FD5-28 manufactured by Triad Magnetics qualifies as a direct substitute for the DP-241-5-28 based on the following electrical and mechanical equivalence criteria:

Electrical Parameters (Identical):

• Power rating: 12VA
• Primary windings: Dual (115V, 230V)
• Secondary voltage: 28V
• Maximum output current: 420mA
• Center tap configuration: Yes
• Isolation voltage: 2500V (DP-241-5-28: 2500Vrms; FD5-28: 2500VAC)
• Core type: Laminated

Mechanical Parameters (Compatible):

• Mounting type: Chassis Mount
• Termination style: Solder, Quick Connect
• Physical dimensions: Within tolerance (DP-241-5-28: 71.40mm L × 36.30mm W × 42.80mm H; FD5-28: 71.42mm L × 34.93mm W × 41.28mm H)
• Weight: Equivalent (0.7 lb / 317.51 g)

Compliance & Status:

• Both parts are Active product status
• Both are ROHS3 Compliant
• Both are REACH Unaffected
• Both share identical ECCN (EAR99) and HTSUS (8504.31.4035) classifications

Parameter Comparison

Engineering Selection Recommendations

Both the DP-241-5-28 and FD5-28 are active production components with identical regulatory compliance profiles. Selection between these parts should be based on:

Availability & Lead Time: Current inventory shows DP-241-5-28 at 1032 units and FD5-28 at 1071 units, both in stock.

Compliance Assurance: Both parts meet ROHS3 requirements and are REACH unaffected, suitable for applications with environmental compliance mandates.

Regulatory Classification: Identical ECCN (EAR99) and HTSUS (8504.31.4035) codes confirm equivalent export and tariff treatment.

Mechanical Fit: Dimensional variations are minimal (length difference: 0.02mm; width difference: 1.37mm; height difference: 1.52mm), within typical PCB layout tolerances for chassis-mount transformers.

Frequently Asked Questions (FAQ)

Q: Can FD5-28 be used as a direct replacement for DP-241-5-28 in existing designs?

A: Yes. Both transformers share identical electrical specifications (12VA, dual 115V/230V primary, 28V secondary, 420mA output, center tap) and equivalent mechanical mounting (chassis mount, solder/quick connect termination). Dimensional differences are negligible for standard PCB layouts.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN and HTSUS classifications.

Q: What is the significance of the isolation voltage specification?

A: Both transformers provide 2500V isolation (DP-241-5-28: 2500Vrms; FD5-28: 2500VAC), meeting high-voltage isolation requirements for safety-critical applications. This specification ensures adequate dielectric strength between primary and secondary windings.

Q: Do the quick connect terminations have different specifications?

A: The FD5-28 specifies quick connect terminals as 0.187" (4.7mm), while the DP-241-5-28 lists quick connect without dimensional detail. Both support solder and quick connect termination styles, compatible with standard 0.187" quick disconnect connectors used in chassis-mount transformer applications.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection may be based on supplier preference, inventory availability, or series preference (Signal Transformer Two-4-One™ series vs. Triad Magnetics Quick Pack series).