MDF7-12S-2.54DSA Equivalent & Substitute Parts

Part Overview

The MDF7-12S-2.54DSA is a 12-position rectangular receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board applications with bottom entry configuration and 0.100" (2.54mm) pitch. This connector features through-hole solder termination, tin-plated contacts, and operates across -35°C to 85°C. The main part number is currently listed as obsolete, making identification of compatible substitutes essential for ongoing production and maintenance applications.

Substiute Parts

MDF7-12S-2.54DSA

Hirose Electric Co LtdIn Stock: 1120MDF7-12S-2.54DSA Datasheet

Current PartRFQ

MDF7-12S-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 2603MDF7-12S-2.54DSA(55) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7-12S-2.54DSA is determined by the following critical parameters:

• 12-position configuration with 0.100" (2.54mm) mating pitch
• Receptacle, bottom entry connector type with female socket contacts
• Through-hole solder termination for PCB mounting
• 3A current rating and 250VAC voltage rating
• Operating temperature range of -35°C to 85°C
• Tin contact finish on mating surface
• Polyamide (PA) nylon insulation with UL94 V-0 flammability rating

The substitute part MDF7-12S-2.54DSA(55) maintains all critical electrical and mechanical parameters required for direct substitution while offering improved product status and compliance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MDF7-12S-2.54DSA(55) is the direct substitute for the obsolete MDF7-12S-2.54DSA. Both connectors share identical electrical specifications, mechanical dimensions, and contact configurations. The substitute part offers two significant advantages: active product status ensuring continued availability and supply chain support, and ROHS3 compliance meeting current regulatory requirements. The increased contact finish thickness on the mating surface (78.7µin versus 39.4µin) provides enhanced durability and contact reliability. For new designs and ongoing production requiring this connector type, the MDF7-12S-2.54DSA(55) is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can MDF7-12S-2.54DSA(55) be used as a direct replacement for MDF7-12S-2.54DSA?

A: Yes. Both connectors maintain identical 12-position configuration, 0.100" (2.54mm) pitch, 3A current rating, 250VAC voltage rating, and operating temperature range. Mechanical and electrical compatibility is complete.

Q: What is the difference in contact finish thickness between these parts?

A: The original MDF7-12S-2.54DSA has 39.4µin (1.00µm) tin plating on mating contacts, while MDF7-12S-2.54DSA(55) has 78.7µin (2.00µm). The increased thickness in the substitute provides extended contact life and improved corrosion resistance.

Q: Why is the original part listed as obsolete?

A: Product obsolescence reflects manufacturer discontinuation. The MDF7-12S-2.54DSA(55) maintains the same functional specifications and serves as the active replacement within the MDF7 series.

Q: Does the packaging difference affect compatibility?

A: No. The original part packaging is unspecified, while the substitute is supplied in bulk packaging. Packaging format does not affect connector performance or mechanical fit.

Q: Is RoHS3 compliance required for my application?

A: RoHS3 compliance is mandatory for products sold in the European Union and many other markets. The substitute part MDF7-12S-2.54DSA(55) meets this requirement, while the original does not.