MDF7-20DP-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7-20DP-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This 20-position, 2-row 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 models essential for ongoing design support and procurement continuity.

Substiute Parts

MDF7-20DP-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 1125MDF7-20DP-2.54DSA(55) Datasheet

Current PartRFQ

MDF7-20DP-2.54DSA(95)

Hirose Electric Co LtdIn Stock: 737MDF7-20DP-2.54DSA(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The MDF7-20DP-2.54DSA(55) has one identified substitute within the MDF7 series: MDF7-20DP-2.54DSA(95). Substitution eligibility is determined by the following critical parameters that must remain identical:

• Number of Positions: 20
• Number of Rows: 2
• Pitch - Mating: 0.100" (2.54mm)
• Row Spacing - Mating: 0.100" (2.54mm)
• Connector Type: Header
• Contact Type: Male Pin
• Mounting Type: Through Hole
• Termination: Solder
• Current Rating: 3A
• Voltage Rating: 250V
• Operating Temperature Range: -35°C ~ 85°C
• Contact Material: Brass
• Insulation Material: Polybutylene Terephthalate (PBT)
• RoHS Compliance: RoHS Compliant

The substitute part maintains full electrical and mechanical compatibility with the original specification while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The MDF7-20DP-2.54DSA(95) is a direct functional equivalent to the MDF7-20DP-2.54DSA(55). Both parts maintain identical electrical specifications, mechanical dimensions, and material composition. The primary distinction is product status: the original part is obsolete while the substitute is active.

For new designs or ongoing production requiring this connector specification, the MDF7-20DP-2.54DSA(95) is the appropriate selection. Both parts carry RoHS compliance certification and UL94 V-0 flammability rating, meeting regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can MDF7-20DP-2.54DSA(95) be used as a direct replacement for MDF7-20DP-2.54DSA(55)?

A: Yes. Both parts share identical electrical ratings (3A, 250V), mechanical configuration (20 positions, 2 rows, 2.54mm pitch), contact materials, and operating temperature range. The parts are mechanically and electrically interchangeable.

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

A: The suffix designation (55 versus 95) indicates different packaging or manufacturing batches within the MDF7 series. The electrical and mechanical specifications remain identical. The MDF7-20DP-2.54DSA(95) is currently in active production status.

Q: Are there any compatibility concerns with PCB layout or mating connectors?

A: No. Both parts maintain the same pitch (2.54mm), row spacing (2.54mm), contact geometry, and mounting footprint. Existing PCB designs and mating connector assemblies are fully compatible with either part number.

Q: What certifications apply to both parts?

A: Both parts are RoHS compliant and carry UL94 V-0 material flammability rating. Operating temperature range is -35°C to 85°C for both variants.

Q: Why should I transition from the obsolete part to the active equivalent?

A: The MDF7-20DP-2.54DSA(95) offers assured long-term availability and ongoing manufacturing support. Obsolete parts face supply discontinuation risk and potential cost escalation. Transitioning to the active equivalent ensures design continuity and procurement reliability.