DF1EC-3P-2.5DSA Equivalent & Substitute Parts

Part Overview

The DF1EC-3P-2.5DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting in board-to-cable/wire applications. This connector features 3 positions with a 2.5mm pitch, shrouded 4-wall design, and solder termination. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and component procurement.

Substiute Parts

DF1EC-3P-2.5DSA

Hirose Electric Co LtdIn Stock: 849DF1EC-3P-2.5DSA Datasheet

Current PartRFQ

0901361303

MolexIn Stock: 73950901361303 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DF1EC-3P-2.5DSA is determined by the following critical parameters:

• Connector Type & Contact Type: Must remain Header with Male Pin configuration
• Number of Positions: Must be 3 positions
• Pitch - Mating: The 2.5mm pitch is a defining characteristic; however, the substitute part 0901361303 operates at 2.54mm pitch, representing a 0.04mm variance
• Mounting & Termination: Through-hole solder termination must be maintained
• Shrouding: 4-wall shrouded design must be preserved
• Electrical Ratings: Current rating of 3A and UL94 V-0 flammability rating establish minimum performance requirements
• Product Status: The main part is obsolete; active alternatives are required for procurement

The substitute part 0901361303 (Molex C-Grid III 90136 series) meets the core functional requirements with the noted pitch tolerance variance.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0901361303 serves as the primary substitute for the obsolete DF1EC-3P-2.5DSA. Selection is justified on the following basis:

• Product Status: The DF1EC-3P-2.5DSA is obsolete; the 0901361303 is active and available in production quantities (7307 pcs in stock)
• Functional Equivalence: Both connectors maintain identical connector type, contact configuration, position count, mounting method, and shrouding design
• Compliance: The 0901361303 achieves ROHS3 compliance, whereas the original part is RoHS non-compliant
• Pitch Variance: The 0.04mm pitch difference (2.50mm vs 2.54mm) represents a 1.6% tolerance variance. PCB layout and mating connector compatibility must be evaluated for specific applications
• Electrical & Environmental Ratings: Both parts maintain UL94 V-0 flammability rating and MSL 1 classification, ensuring equivalent environmental performance

Frequently Asked Questions (FAQ)

Q: Can the Molex 0901361303 be used as a direct drop-in replacement for the DF1EC-3P-2.5DSA?

A: Functional compatibility exists for the connector header itself. However, the 0.04mm pitch difference (2.50mm vs 2.54mm) requires verification that mating connectors and PCB pad layouts accommodate this tolerance. Physical fit and electrical continuity must be confirmed for the specific application.

Q: What is the significance of the pitch difference between 2.50mm and 2.54mm?

A: The pitch difference represents a 1.6% variance. While both connectors maintain the same 3-position, single-row configuration, mating connectors designed specifically for 2.50mm pitch may not align properly with 2.54mm headers. PCB footprint compatibility must be assessed.

Q: Does the Molex substitute offer improved compliance compared to the original part?

A: Yes. The 0901361303 is ROHS3 compliant, whereas the DF1EC-3P-2.5DSA is RoHS non-compliant. This represents an improvement for applications subject to RoHS regulations.

Q: Are the insulation materials equivalent between the two parts?

A: The materials differ: the original uses Polyamide (PA) Nylon, while the substitute uses Polyester with glass filling. Both achieve UL94 V-0 flammability rating. Material selection should be evaluated based on specific thermal and chemical exposure requirements.

Q: What packaging format is the substitute available in?

A: The Molex 0901361303 is supplied in Tray packaging, whereas the original part packaging is not specified. Confirm packaging requirements for your procurement and assembly processes.