MDF7B-3P-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7B-3P-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This connector features 3 positions at 0.100" (2.54mm) pitch with male pin contacts and unshrouded design. The part is classified as obsolete, making identification of active equivalent alternatives essential for ongoing production and maintenance applications.

Substiute Parts

MDF7B-3P-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 945MDF7B-3P-2.54DSA(55) Datasheet

Current PartRFQ

MDF7B-3P-2.54DSA(95)

Hirose Electric Co LtdIn Stock: 1118MDF7B-3P-2.54DSA(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7B-3P-2.54DSA(55) is determined by the following critical parameters:

• Connector Type & Series: Must be MDF7 series header connector
• Number of Positions: Must be 3 positions
• Pitch - Mating: Must be 0.100" (2.54mm)
• Contact Type: Must be male pin
• Mounting Type: Must be through hole
• Termination: Must be solder
• Current Rating: Must be 3A minimum
• Voltage Rating: Must be 250V minimum
• Operating Temperature Range: Must support -35°C ~ 85°C
• Material Compliance: Must maintain UL94 V-0 flammability rating and RoHS compliance

The MDF7B-3P-2.54DSA(95) qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while maintaining equivalent performance specifications.

Parameter Comparison

Engineering Selection Recommendations

The MDF7B-3P-2.54DSA(95) is the direct substitute for the obsolete MDF7B-3P-2.54DSA(55). Both parts maintain identical electrical ratings, mechanical dimensions, and material specifications. The primary distinction is product status: the MDF7B-3P-2.54DSA(95) is currently active with confirmed inventory availability (1036 pcs), whereas the original part is obsolete.

Both parts maintain full RoHS compliance and UL94 V-0 flammability certification. The voltage rating specification differs in notation (250V versus 250VAC), but both represent equivalent AC voltage ratings suitable for the same applications. Overall contact length variance (0.867" versus 0.866") is within manufacturing tolerance and does not affect functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can MDF7B-3P-2.54DSA(95) be used as a direct replacement for MDF7B-3P-2.54DSA(55)?

A: Yes. Both connectors share identical electrical specifications (3A at 250V), mechanical dimensions, contact configuration, and material properties. The substitute is functionally equivalent for all applications where the original part was specified.

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

A: The suffix designation (55 versus 95) indicates different packaging or manufacturing batches. The MDF7B-3P-2.54DSA(55) is obsolete, while MDF7B-3P-2.54DSA(95) is an active production part with current inventory availability.

Q: Are there any compatibility concerns with PCB mounting?

A: No. Both parts feature identical through-hole solder termination, contact post length (0.118"), and insulation height (0.100"). PCB footprints and mounting procedures are interchangeable.

Q: Do both parts meet the same compliance standards?

A: Yes. Both parts are RoHS compliant and carry UL94 V-0 flammability certification. Moisture sensitivity level is identical (MSL 1 - Unlimited) for both variants.

Q: What is the inventory status for the substitute part?

A: MDF7B-3P-2.54DSA(95) has 1036 pcs in stock as new original inventory, providing reliable supply for production requirements.