MDF7-9P-2.54DS(55) Equivalent & Substitute Parts

Part Overview

The MDF7-9P-2.54DS(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle mounting applications. This 9-position connector operates at 3A current rating and 250V voltage rating with a 0.100" (2.54mm) pitch configuration. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

MDF7-9P-2.54DS(55)

Hirose Electric Co LtdIn Stock: 1117MDF7-9P-2.54DS(55) Datasheet

Current PartRFQ

MDF7-9P-2.54DS(95)

Hirose Electric Co LtdIn Stock: 910MDF7-9P-2.54DS(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7-9P-2.54DS(55) is determined by the following critical parameters:

• Pitch and Position Count: 0.100" (2.54mm) pitch with 9 positions
• Connector Type and Contact Configuration: Header with male pin contacts
• Mounting Orientation: Through hole, right-angle mounting
• Electrical Ratings: 3A current and 250V voltage minimum
• Material and Compliance: Brass contacts with tin finish, PBT insulation, UL94 V-0 rated, RoHS compliant
• Operating Temperature Range: -35°C ~ 85°C

The MDF7-9P-2.54DS(95) qualifies as a direct substitute based on matching these core parameters while offering active product status.

Parameter Comparison

Engineering Selection Recommendations

The MDF7-9P-2.54DS(95) is the qualified substitute for the obsolete MDF7-9P-2.54DS(55). Both parts maintain identical electrical and mechanical specifications across all critical parameters. The primary distinction is product status: the MDF7-9P-2.54DS(55) is obsolete, while the MDF7-9P-2.54DS(95) maintains active status with current manufacturing support.

Both parts carry RoHS compliance certification and UL94 V-0 flammability rating, meeting regulatory requirements for industrial and commercial applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage or handling.

For new designs or ongoing production requiring the MDF7 series 9-position 2.54mm pitch header, the MDF7-9P-2.54DS(95) provides continuity of supply and technical support.

Frequently Asked Questions (FAQ)

Q: Can the MDF7-9P-2.54DS(95) directly replace the MDF7-9P-2.54DS(55) in existing assemblies?

A: Yes. Both parts share identical pitch (0.100" / 2.54mm), position count (9), contact configuration (male pin), mounting type (through hole, right angle), and electrical ratings (3A / 250V). The connector footprint and mating interface are equivalent.

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

A: The primary difference is product status. The MDF7-9P-2.54DS(55) is obsolete, while the MDF7-9P-2.54DS(95) is active. The suffix designation (55 vs. 95) reflects packaging or manufacturing revision codes. Electrical and mechanical specifications remain identical.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical certifications: RoHS compliance, UL94 V-0 flammability rating, and MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the contact length difference between these parts?

A: The mating contact length differs slightly: MDF7-9P-2.54DS(55) is 0.292" (7.42mm), while MDF7-9P-2.54DS(95) is 0.293" (7.45mm). This 0.01mm variation is within standard manufacturing tolerance and does not affect functional compatibility.

Q: Can I use these connectors for board-to-board or board-to-cable applications?

A: The MDF7-9P-2.54DS(55) is specified for board-to-board applications. The MDF7-9P-2.54DS(95) is specified for board-to-cable/wire applications. Application context should be considered during selection.