MDF7-19P-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7-19P-2.54DSA(55) is a rectangular connector header manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications. This 19-position 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

MDF7-19P-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 897MDF7-19P-2.54DSA(55) Datasheet

Current PartRFQ

MDF7-19P-2.54DSA(95)

Hirose Electric Co LtdIn Stock: 858MDF7-19P-2.54DSA(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDF7-19P-2.54DSA(55) is determined by the following critical parameters:

• Pitch and Position Count: 0.100" (2.54mm) pitch with 19 positions
• Connector Type and Contact Configuration: Header with male pin contacts
• Electrical Ratings: 3A current and 250V voltage minimum
• Mounting Method: Through-hole solder termination
• Material and Compliance: Brass contacts with tin finish, PBT insulation, UL94 V-0 rated, RoHS compliant
• Operating Temperature Range: -35°C ~ 85°C

The substitute part MDF7-19P-2.54DSA(95) maintains identical electrical, mechanical, and material specifications while offering active product status and standard bag packaging.

Parameter Comparison

Engineering Selection Recommendations

The MDF7-19P-2.54DSA(95) is the direct active equivalent for the obsolete MDF7-19P-2.54DSA(55). Both parts share identical electrical specifications, mechanical dimensions, and material composition. The substitute part maintains full RoHS compliance and UL94 V-0 flammability certification. The transition from the obsolete variant to the active production model presents no functional or compatibility constraints for circuit board integration or connector mating operations. Standard bag packaging for the active variant supports standard procurement workflows.

Frequently Asked Questions (FAQ)

Q: Can MDF7-19P-2.54DSA(95) directly replace MDF7-19P-2.54DSA(55) in existing designs?

A: Yes. Both parts are identical in pitch (0.100" / 2.54mm), position count (19), contact configuration (male pin header), electrical ratings (3A / 250V), and material specifications. The substitute part is suitable for direct board-level substitution without design modification.

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

A: The primary difference is product status. MDF7-19P-2.54DSA(55) is obsolete, while MDF7-19P-2.54DSA(95) is active production. The suffix designation (55 vs. 95) indicates packaging or production variant classification within the MDF7 series. Electrical and mechanical parameters remain unchanged.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS compliance status and UL94 V-0 flammability rating. Moisture sensitivity level (MSL 1 - Unlimited) is identical for both variants.

Q: What packaging is provided with the substitute part?

A: MDF7-19P-2.54DSA(95) is supplied in standard bag packaging, suitable for automated assembly and manual handling workflows.

Q: Are the contact dimensions and mating characteristics identical?

A: Yes. Contact length for mating (0.394" / 10.00mm), post length (0.118" / 3.00mm), overall contact length (0.612" / 15.54mm), and insulation height (0.100" / 2.54mm) are identical. Square contact geometry and tin finish specifications match exactly.

Q: Can this connector be used in both board-to-board and board-to-cable applications?

A: The MDF7-19P-2.54DSA(55) is specified for board-to-board style applications. The substitute MDF7-19P-2.54DSA(95) is specified for board-to-cable/wire style applications. While both are 19-position headers with identical contact specifications, the intended mating interface differs. Application requirements should determine which variant is appropriate.