MDF7B-23P-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7B-23P-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This connector features 23 vertical positions with 0.100" (2.54mm) pitch spacing and is classified as a board-to-board connector with unshrouded design. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and procurement planning.

Substiute Parts

MDF7B-23P-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 1031MDF7B-23P-2.54DSA(55) Datasheet

Current PartRFQ

MDF7B-23P-2.54DSA(95)

Hirose Electric Co LtdIn Stock: 1047MDF7B-23P-2.54DSA(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7B-23P-2.54DSA(55) is determined by the following critical parameters:

• Connector type (Header)
• Contact type (Male Pin)
• Number of positions (23)
• Pitch spacing (0.100" / 2.54mm)
• Mounting type (Through Hole)
• Termination method (Solder)
• Current rating (3A minimum)
• Voltage rating (250V minimum)
• Operating temperature range (-35°C ~ 85°C)
• Contact material and finish specifications
• Insulation material (PBT)
• RoHS compliance status

The MDF7B-23P-2.54DSA(95) qualifies as a direct substitute based on matching all critical electrical and mechanical parameters within the MDF7 series.

Parameter Comparison

Engineering Selection Recommendations

The MDF7B-23P-2.54DSA(95) is the qualified substitute for the obsolete MDF7B-23P-2.54DSA(55). Both components maintain identical electrical specifications, mechanical dimensions, and material compositions within acceptable tolerances. The substitute part carries active product status with current manufacturing support from Hirose Electric Co Ltd, ensuring long-term availability and supply chain continuity. Both parts maintain RoHS compliance and UL94 V-0 flammability certification, meeting regulatory requirements for equivalent applications. The substitute part is available in standard bag packaging with higher current inventory levels, supporting procurement efficiency.

Frequently Asked Questions (FAQ)

Q: What is the primary difference between MDF7B-23P-2.54DSA(55) and MDF7B-23P-2.54DSA(95)?

A: The primary difference is product status. The (55) variant is obsolete, while the (95) variant is active. Both parts share identical electrical ratings, mechanical dimensions, contact specifications, and material properties. The (95) variant represents the current production equivalent.

Q: Are the overall contact lengths identical between these parts?

A: The overall contact lengths are functionally equivalent. The (55) measures 0.867" (22.01mm) and the (95) measures 0.866" (22.00mm), representing a 0.01mm difference within standard manufacturing tolerances for this connector class.

Q: Can MDF7B-23P-2.54DSA(95) be used as a direct replacement in existing designs?

A: Yes. The substitute part maintains all critical parameters: 23-position configuration, 0.100" (2.54mm) pitch, through-hole solder termination, 3A current rating, 250V voltage rating, and -35°C to 85°C operating temperature range. Pin-to-pin compatibility is maintained.

Q: What packaging format is available for the substitute part?

A: The MDF7B-23P-2.54DSA(95) is supplied in standard bag packaging, suitable for standard component handling and storage procedures.

Q: Are both parts RoHS compliant?

A: Yes. Both the MDF7B-23P-2.54DSA(55) and MDF7B-23P-2.54DSA(95) are RoHS compliant and carry UL94 V-0 flammability certification.