MDF7-22S-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7-22S-2.54DSA(55) is a 22-position receptacle connector manufactured by Hirose Electric Co Ltd, designed for board-to-board applications with 0.100" (2.54mm) pitch through-hole mounting. This connector features female socket contacts with tin plating, push-pull fastening, and operates across -35°C to 85°C. The part is currently obsolete, making identification of compatible substitutes essential for ongoing system support and component procurement.

Substiute Parts

MDF7-22S-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 1139MDF7-22S-2.54DSA(55) Datasheet

Current PartRFQ

MDF7-22S-2.54DSA(95)

Hirose Electric Co LtdIn Stock: 916MDF7-22S-2.54DSA(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7-22S-2.54DSA(55) is determined by the following critical parameters:

• Connector Type & Style: Receptacle, bottom entry, board-to-board configuration
• Position Count: 22 positions
• Pitch Specification: 0.100" (2.54mm) mating pitch
• Contact Configuration: Female socket contacts
• Electrical Ratings: 3A current, 250VAC voltage
• Mounting Method: Through-hole solder termination
• Mechanical Compatibility: Insulation height 0.197" (5.00mm), contact length 0.118" (3.00mm)
• Material & Compliance: Polyamide insulation, UL94 V-0 flammability rating, RoHS compliance

The substitute part MDF7-22S-2.54DSA(95) maintains all critical parameters required for direct functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The MDF7-22S-2.54DSA(95) is a direct functional equivalent to the obsolete MDF7-22S-2.54DSA(55). Both parts share identical electrical ratings, mechanical dimensions, contact configurations, and material specifications. The primary distinction is product status: the MDF7-22S-2.54DSA(55) is obsolete while the MDF7-22S-2.54DSA(95) maintains active production status.

For new designs or component replenishment, the MDF7-22S-2.54DSA(95) is the appropriate selection. Both parts meet UL94 V-0 flammability requirements and RoHS compliance standards. The MDF7-22S-2.54DSA(95) carries ROHS3 certification, providing enhanced regulatory alignment for current procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can MDF7-22S-2.54DSA(95) directly replace MDF7-22S-2.54DSA(55) in existing assemblies?

A: Yes. Both connectors are mechanically and electrically identical. They share the same 22-position configuration, 0.100" pitch, 3A current rating, 250VAC voltage rating, through-hole mounting, and contact geometry. Direct substitution is supported without design modification.

Q: What is the difference between the two part numbers?

A: The primary difference is product lifecycle status. MDF7-22S-2.54DSA(55) is obsolete, while MDF7-22S-2.54DSA(95) is in active production. The MDF7-22S-2.54DSA(95) also carries ROHS3 certification versus RoHS compliance for the earlier variant. All functional and mechanical parameters remain identical.

Q: Are there packaging differences between these parts?

A: The MDF7-22S-2.54DSA(55) packaging specification is not provided. The MDF7-22S-2.54DSA(95) is supplied in bag packaging. Confirm packaging requirements with your procurement specification before ordering.

Q: Do both parts meet the same compliance standards?

A: Both parts meet UL94 V-0 flammability rating and MSL 1 (Unlimited) moisture sensitivity requirements. The MDF7-22S-2.54DSA(95) carries ROHS3 certification, providing current regulatory compliance. Both parts are classified under ECCN EAR99 and HTSUS 8536.69.4040.

Q: What are the contact finish specifications?

A: Both parts feature tin-plated contacts on both mating and post surfaces. Contact finish thickness is specified as 78.7µin (2.00µm) for the MDF7-22S-2.54DSA(55). Contact finish thickness for the MDF7-22S-2.54DSA(95) is not provided in the specification data.