Amphenol ICC 71991-311 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 71991-311 is a 22-position rectangular receptacle connector from the Dubox™ series, designed for board-to-board applications with 0.100" (2.54mm) pitch spacing. This connector features bottom or top entry configuration with gold-plated mating contacts and through-hole solder termination. The product is currently obsolete, making identification of suitable substitute components essential for legacy system maintenance and new design implementations requiring compatible interconnect solutions.

Substiute Parts

71991-311

Amphenol ICC (FCI)In Stock: 75171991-311 Datasheet

Current PartRFQ

75867-104LF

Amphenol ICC (FCI)In Stock: 142775867-104LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 71991-311 receptacle connector is constrained by the following critical parameters that must align between the main part and any substitute:

Mandatory Matching Parameters:

• Pitch spacing: 0.100" (2.54mm) mating pitch
• Row configuration: 2-row arrangement with 0.100" (2.54mm) row spacing
• Mounting technology: Through-hole solder termination
• Contact finish: Gold plating on mating surfaces
• Insulation material: Thermoplastic, glass-filled construction
• Flammability rating: UL94 V-0 compliance

Flexible Parameters (allowing substitution):

• Connector orientation (bottom/top entry vs. right-angle)
• Connector type (receptacle vs. header, as long as mating interface is compatible)
• Position count (within compatible row/pitch framework)
• Series designation (different product lines acceptable if parameters align)

The substitute part 75867-104LF is a 20-position header connector from the Quickie™ series. While this part differs in position count (20 vs. 22), connector type (header vs. receptacle), and mounting orientation (right-angle vs. straight entry), it shares the critical electrical and mechanical parameters: 0.100" (2.54mm) pitch, 2-row configuration, through-hole solder termination, gold mating contact finish, thermoplastic glass-filled insulation, and UL94 V-0 flammability rating.

Parameter Comparison

Engineering Selection Recommendations

The 75867-104LF substitute part is suitable for applications where the 71991-311 is no longer available. Both connectors meet identical electrical and mechanical specifications for pitch, row spacing, contact materials, and flammability ratings. The 75867-104LF maintains active product status with current manufacturing availability, whereas the 71991-311 is obsolete.

Key considerations for selection:

The 75867-104LF is a 20-position connector compared to the 22-position configuration of the 71991-311. Design integration requires accommodation of the reduced position count within the application's interconnect architecture.

The 75867-104LF features right-angle mounting orientation versus the straight entry configuration of the 71991-311. PCB layout and mechanical envelope must be evaluated for compatibility with the right-angle mounting geometry.

The 75867-104LF is classified as a header connector with male pins, whereas the 71991-311 is a receptacle with female sockets. Mating interface compatibility with existing cable assemblies or connector partners must be confirmed.

Both parts are RoHS compliant and REACH affected, with identical MSL ratings and export classifications. Both employ UL94 V-0 rated insulation materials and phosphor bronze contacts with gold and tin plating specifications.

Frequently Asked Questions (FAQ)

Q: Can the 75867-104LF directly replace the 71991-311 in existing designs?

A: Direct replacement requires three design modifications: accommodation of 20 positions instead of 22, integration of right-angle mounting instead of straight entry, and compatibility with male pin headers instead of female receptacles. The electrical and mechanical parameters are compatible, but physical layout and mating interface changes are necessary.

Q: What are the critical parameters that define substitution compatibility?

A: Substitution compatibility is determined by: 0.100" (2.54mm) mating pitch, 2-row configuration with 0.100" (2.54mm) row spacing, through-hole solder termination, gold-plated mating contacts at 30.0µin thickness, phosphor bronze contact material, thermoplastic glass-filled insulation, and UL94 V-0 flammability rating. Variations in position count, connector type, and mounting orientation are acceptable if these core parameters align.

Q: Why is the 71991-311 obsolete and what does this mean for procurement?

A: Obsolete status indicates the 71991-311 is no longer manufactured by Amphenol ICC. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. The 75867-104LF, with active product status, provides a viable alternative for new designs and ongoing production requirements.

Q: Are there compliance or certification differences between these connectors?

A: Both connectors share identical compliance classifications: UL94 V-0 flammability rating, EAR99 export classification, and 8536.69.4040 HTSUS code. The 75867-104LF carries additional RoHS Compliant and REACH Affected designations. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What is the difference between the Dubox™ and Quickie™ series?

A: Dubox™ and Quickie™ are distinct product series within the Amphenol ICC connector portfolio. The 71991-311 belongs to the Dubox™ series, while the 75867-104LF is part of the Quickie™ series. Both series employ identical pitch, row spacing, and contact specifications, but differ in connector type, mounting orientation, and position configurations.

Q: How do the packaging specifications affect component handling?

A: The 71991-311 packaging specification is not provided in available documentation. The 75867-104LF is supplied in tube packaging. Packaging format affects storage, handling, and automated assembly compatibility. Confirm packaging requirements with your procurement and assembly processes.