MDF7-7P-2.54DS(55) Equivalent & Substitute Parts

Part Overview

The MDF7-7P-2.54DS(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole, right-angle board-to-board applications with 7 positions at 0.100" (2.54mm) pitch. This connector features male pins with solder termination and push-pull fastening. The part is currently listed as obsolete, making identification of active equivalent models essential for ongoing design support and procurement continuity.

Substiute Parts

MDF7-7P-2.54DS(55)

Hirose Electric Co LtdIn Stock: 832MDF7-7P-2.54DS(55) Datasheet

Current PartRFQ

MDF7-7P-2.54DS(95)

Hirose Electric Co LtdIn Stock: 748MDF7-7P-2.54DS(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MDF7-7P-2.54DS(95) qualifies as a direct substitute based on the following critical parameters that determine functional compatibility:

• Series Match: Both parts belong to the MDF7 series
• Position Count: Identical 7-position configuration
• Pitch Specification: Both maintain 0.100" (2.54mm) mating pitch
• Connector Type & Contact Type: Both are header connectors with male pins
• Mounting Configuration: Both feature through-hole, right-angle mounting
• Termination Method: Both use solder termination
• Electrical Ratings: Both rated for 3A current and 250V voltage
• Operating Temperature Range: Identical -35°C ~ 85°C range
• Material & Compliance: Both use PBT insulation, UL94 V-0 rated, and RoHS compliant

The primary distinction is product status: MDF7-7P-2.54DS(55) is obsolete while MDF7-7P-2.54DS(95) is active, and the application style differs (board-to-board versus board-to-cable/wire).

Parameter Comparison

Engineering Selection Recommendations

The MDF7-7P-2.54DS(95) is the active equivalent for the obsolete MDF7-7P-2.54DS(55). Both parts maintain identical electrical and mechanical specifications across all critical parameters including pitch, position count, current and voltage ratings, operating temperature range, and material compliance certifications. The MDF7-7P-2.54DS(95) carries active product status and is currently in stock, making it the appropriate selection for new designs and replacement procurement. Both parts are RoHS compliant and carry UL94 V-0 flammability certification, meeting equivalent regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can MDF7-7P-2.54DS(95) directly replace MDF7-7P-2.54DS(55) in existing designs?

A: Yes. Both connectors share identical electrical ratings (3A, 250V), operating temperature range (-35°C ~ 85°C), pitch specification (0.100"/2.54mm), position count (7), and mechanical mounting configuration (through-hole, right-angle, solder termination). The primary difference is application style: the original is board-to-board while the substitute is board-to-cable/wire. Contact geometry differences are minimal (mating contact length 0.292" vs 0.293").

Q: What is the significance of the style difference between board-to-board and board-to-cable/wire?

A: Style designation indicates the intended mating interface. Board-to-board connectors mate with receptacle connectors on another PCB. Board-to-cable/wire connectors mate with wire or cable assemblies. The MDF7-7P-2.54DS(95) accommodates both applications due to its header design and male pin configuration.

Q: Are there packaging differences between these parts?

A: The MDF7-7P-2.54DS(55) packaging is not specified in available data. The MDF7-7P-2.54DS(95) is supplied in bag packaging. Confirm packaging requirements with your procurement specification.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are RoHS compliant, carry UL94 V-0 flammability rating, and share identical moisture sensitivity level (MSL 1 - Unlimited). Both use identical materials: brass contacts with tin finish and PBT insulation.

Q: Why is MDF7-7P-2.54DS(55) listed as obsolete?

A: Product obsolescence is determined by the manufacturer. The MDF7-7P-2.54DS(95) represents the active continuation within the MDF7 series and should be used for all new applications and ongoing procurement.