Amphenol ICC 91931-21125 Rectangular Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 91931-21125 is a 25-position rectangular connector receptacle with outer shroud contacts designed for surface mount applications. This connector features gold or gold GXT™ contact finish and is part of the Conan™ and MezzSelect™ series. The part is currently listed as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity. Equivalent and substitute parts maintain identical electrical and mechanical specifications while offering improved availability or compliance status.

Substiute Parts

91931-21125

Amphenol ICC (FCI)In Stock: 90691931-21125 Datasheet

Current PartRFQ

91930-21125LF

Amphenol ICC (FCI)In Stock: 200491930-21125LF Datasheet

MFR RecommendedRFQ

91931-21125LF

Amphenol ICC (FCI)In Stock: 91791931-21125LF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 91931-21125 is determined by strict equivalence across the following critical parameters:

• Connector type and contact configuration (Receptacle, Outer Shroud Contacts)
• Electrical specifications (25 positions, 0.039" pitch, 2-row configuration)
• Mechanical compatibility (Surface mount, identical height above board, matching stacking heights)
• Contact material and finish (Gold or Gold, GXT™ at 15.0µin thickness)
• Physical features (Board guide, solder retention)
• Environmental classification (MSL 1)

The substitute parts identified below maintain full parametric equivalence with the original part number while differing in product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain full parametric equivalence with the original 91931-21125 across all critical electrical and mechanical specifications. Selection between alternatives should be based on the following factors:

91930-21125LF (MFR Recommended Substitute): This part is designated as the manufacturer-recommended substitute. It carries active product status with confirmed RoHS compliance and REACH affected status. Higher inventory availability (1958 pcs) supports production continuity. This part is suitable for new designs and ongoing production requiring regulatory compliance documentation.

91931-21125LF (Parametric Equivalent): This part maintains identical specifications to the original part number while offering active product status. It carries RoHS compliance and REACH affected status. Inventory availability (858 pcs) is adequate for production requirements. This part provides direct parametric substitution with improved compliance posture.

Both substitute parts are packaged in tube format and are suitable for direct replacement in surface mount applications where the original 91931-21125 was specified.

Frequently Asked Questions (FAQ)

Q: Can 91930-21125LF and 91931-21125LF be used interchangeably with 91931-21125?

A: Yes. Both substitute parts maintain identical electrical and mechanical specifications across all critical parameters including connector type, position count, pitch, mounting configuration, contact finish, and physical dimensions. Direct substitution is supported.

Q: What is the difference between the two substitute parts?

A: The primary difference is the base product number (91930 versus 91931). Both parts are manufactured by Amphenol ICC and maintain identical specifications. The 91930-21125LF is designated as the manufacturer-recommended substitute with higher inventory availability.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both 91930-21125LF and 91931-21125LF are RoHS compliant. The original 91931-21125 does not specify RoHS status.

Q: What packaging format is used for the substitute parts?

A: Both substitute parts are supplied in tube packaging, suitable for automated assembly processes.

Q: Is the contact finish specification identical across all three parts?

A: Yes. All three parts feature gold or gold GXT™ contact finish with a thickness of 15.0µin (0.38µm), ensuring equivalent electrical performance and reliability.

Q: Can these connectors accommodate different mated stacking heights?

A: Yes. All three parts support mated stacking heights of 4.15mm, 4.5mm, 5mm, 5.5mm, 6mm, 7mm, and 7.52mm, providing flexibility for various mating connector configurations.

Q: What is the MSL rating for these connectors?

A: All three parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.