MDF7C-18P-2.54DSA(55) Equivalent & Substitute Parts

Part Overview

The MDF7C-18P-2.54DSA(55) is an 18-position header spacer connector manufactured by Hirose Electric Co Ltd, designed for through-hole mounting applications with 0.100" (2.54mm) pitch spacing. This connector features tin-plated contacts and is classified as obsolete. Due to its obsolete status, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and maintenance applications.

Substiute Parts

MDF7C-18P-2.54DSA(55)

Hirose Electric Co LtdIn Stock: 981MDF7C-18P-2.54DSA(55) Datasheet

Current PartRFQ

MDF7C-18P-2.54DSA(95)

Hirose Electric Co LtdIn Stock: 861MDF7C-18P-2.54DSA(95) Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the MDF7C-18P-2.54DSA(55) is based on the following critical parameters that must remain consistent:

• Series Compatibility: Both parts belong to the MDF7 series
• Position Count: 18 positions maintained
• Pitch Specification: 0.100" (2.54mm) pitch
• Row Configuration: Single row layout
• Mounting Method: Through-hole solder termination
• Contact Finish: Tin plating on mating posts
• Overall Dimensions: Pin length and stack height alignment
• Compliance Standards: RoHS compliance and MSL rating

The substitute part MDF7C-18P-2.54DSA(95) meets all these criteria while offering active product status, ensuring continued availability and support.

Parameter Comparison

Engineering Selection Recommendations

The MDF7C-18P-2.54DSA(95) is the direct substitute for the obsolete MDF7C-18P-2.54DSA(55). Both connectors share identical electrical and mechanical specifications within the MDF7 series, including 18-position configuration, 0.100" pitch, through-hole solder termination, and tin contact finish.

The primary distinction is product status: the MDF7C-18P-2.54DSA(95) maintains active status with current manufacturing support, while the MDF7C-18P-2.54DSA(55) is obsolete. Both parts maintain RoHS compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards.

For new designs or component replenishment, the MDF7C-18P-2.54DSA(95) is the appropriate selection due to its active product status and guaranteed availability.

Frequently Asked Questions (FAQ)

Q: Can the MDF7C-18P-2.54DSA(95) be used as a direct replacement for the MDF7C-18P-2.54DSA(55)?

A: Yes. Both connectors are from the same MDF7 series with identical pin counts (18), pitch spacing (0.100"), mounting method (through-hole), and contact specifications (tin finish). The electrical and mechanical parameters are equivalent.

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

A: The primary difference is product status. The MDF7C-18P-2.54DSA(55) is obsolete, while the MDF7C-18P-2.54DSA(95) is active. The suffix designation (55 vs. 95) indicates different manufacturing batches or packaging configurations, but the core connector specifications remain identical.

Q: Are there any packaging differences between these parts?

A: The MDF7C-18P-2.54DSA(95) is supplied in bag packaging. Packaging differences do not affect connector functionality or compatibility in circuit applications.

Q: Do both parts meet current compliance requirements?

A: Yes. Both the MDF7C-18P-2.54DSA(55) and MDF7C-18P-2.54DSA(95) are RoHS compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting current environmental and reliability standards.

Q: What are the critical parameters for substitution compatibility?

A: Substitution compatibility is determined by: series designation (MDF7), position count (18), pitch specification (0.100"), row configuration (single row), mounting type (through-hole), termination method (solder), and contact finish (tin). All these parameters are identical between the two parts.