MDF7B-7P-2.54DSA Equivalent & Substitute Parts

Part Overview

The MDF7B-7P-2.54DSA is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This connector features 7 positions at 0.100" (2.54mm) pitch with male pin contacts and solder termination. The main part (MDF7B-7P-2.54DSA(55)) carries an obsolete product status, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

MDF7B-7P-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 1169MDF7B-7P-2.54DSA(55) Datasheet

Current PartRFQ

MDF7B-7P-2.54DSA(95)

Hirose Electric Co LtdIn Stock: 741MDF7B-7P-2.54DSA(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7B-7P-2.54DSA(55) is determined by the following critical parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (7)
• Pitch specification (0.100" / 2.54mm)
• Mounting method (Through Hole)
• Termination type (Solder)
• Current rating (3A minimum)
• Voltage rating (250V minimum)
• Operating temperature range (-35°C ~ 85°C)
• Material compliance (RoHS Compliant, UL94 V-0)

The substitute part MDF7B-7P-2.54DSA(95) meets all these critical parameters and belongs to the same MDF7 series, ensuring mechanical and electrical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MDF7B-7P-2.54DSA(95) is a direct functional equivalent to the obsolete MDF7B-7P-2.54DSA(55). Both parts share identical electrical and mechanical specifications across all critical parameters. The substitute part carries active product status from Hirose Electric Co Ltd, ensuring ongoing availability and manufacturing support.

Both parts maintain RoHS compliance and UL94 V-0 flammability certification. The voltage rating specification differs in notation (250V versus 250VAC), but both represent equivalent electrical performance for this connector class. The overall contact length variance of 0.01mm (22.01mm versus 22.00mm) is within standard manufacturing tolerance and does not affect functional compatibility.

Selection of MDF7B-7P-2.54DSA(95) for new designs or replacement applications eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing circuit board layouts and mating connectors.

Frequently Asked Questions (FAQ)

Q: Can MDF7B-7P-2.54DSA(95) be used as a direct replacement for MDF7B-7P-2.54DSA(55)?

A: Yes. Both parts are identical in connector type, contact configuration, pitch, mounting method, electrical ratings, and operating temperature range. The substitute part is manufactured by the same supplier and carries active product status.

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 same MDF7 series. The electrical and mechanical specifications are equivalent.

Q: Are there any compatibility concerns with existing PCB designs?

A: No. The parts share identical pitch (0.100" / 2.54mm), contact length, insulation height, and mounting specifications. PCB footprints and mating connectors designed for MDF7B-7P-2.54DSA(55) are fully compatible with MDF7B-7P-2.54DSA(95).

Q: Why is the main part marked as obsolete?

A: Product status reflects manufacturing lifecycle decisions by Hirose Electric Co Ltd. The active substitute part ensures continued availability for applications requiring this connector specification.

Q: Are both parts RoHS compliant?

A: Yes. Both MDF7B-7P-2.54DSA(55) and MDF7B-7P-2.54DSA(95) are RoHS compliant with UL94 V-0 flammability certification.

Q: What is the significance of the 0.01mm difference in overall contact length?

A: This variance (22.01mm versus 22.00mm) falls within standard manufacturing tolerances for connector contacts and does not affect mating performance or electrical characteristics.