Amphenol ICC 91911-31321 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 91911-31321 is a 21-position connector header with center strip contacts designed for surface mount applications. This component features gold-plated contacts and is part of the Conan™ and MezzSelect™ series. The main part number (91911-31321) is currently listed as obsolete, making identification of active equivalent parts essential for ongoing production and maintenance applications. The substitute part 91911-31321LF provides functional equivalence while maintaining active product status.

Substiute Parts

91911-31321

Amphenol ICC (FCI)In Stock: 87091911-31321 Datasheet

Current PartRFQ

91911-31321LF

Amphenol ICC (FCI)In Stock: 352991911-31321LF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 91911-31321LF is classified as a parametric equivalent based on the following criteria:

Matching Parameters (Substitution Basis):

• Identical connector type (Header, Center Strip Contacts)
• Identical number of positions (21)
• Identical pitch (0.039" / 1.00mm)
• Identical number of rows (2)
• Identical mounting type (Surface Mount)
• Identical contact finish specification (Gold or Gold, GXT™)
• Identical contact finish thickness (15.0µin / 0.38µm)
• Identical mated stacking height (5mm)
• Identical height above board (0.068" / 1.73mm)
• Identical features (Board Guide, Solder Retention)
• Identical series designation (Conan™, MezzSelect™)
• Identical base product number (91911)

Differentiating Factors:

• Packaging format (Tape & Reel vs. standard packaging)
• Product status (Active vs. Obsolete)
• RoHS compliance status
• REACH compliance status

Parameter Comparison

Engineering Selection Recommendations

The 91911-31321LF is the direct substitute for the obsolete 91911-31321. Selection between these parts should be based on the following factors:

Product Status: The main part number 91911-31321 is obsolete. The substitute 91911-31321LF maintains active product status with Amphenol ICC, ensuring long-term availability and continued manufacturer support.

Compliance Requirements: The substitute part 91911-31321LF is RoHS Compliant and REACH Affected, whereas the main part is RoHS non-compliant and REACH Unaffected. Applications subject to RoHS or REACH regulations require the substitute part.

Packaging Considerations: The substitute is supplied in Tape & Reel (TR) format, suitable for automated assembly processes. The main part uses standard packaging. Packaging selection depends on production methodology and volume requirements.

Electrical and Mechanical Compatibility: All electrical and mechanical parameters are identical between the two parts, ensuring direct functional substitution in circuit designs and PCB layouts.

Frequently Asked Questions (FAQ)

Q: Can 91911-31321LF be used as a direct replacement for 91911-31321?

A: Yes. The substitute part maintains identical electrical and mechanical specifications, including connector type, position count, pitch, mounting type, contact finish, and physical dimensions. The parts are functionally equivalent for circuit design and PCB assembly purposes.

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

A: The main differences are product status (obsolete vs. active), RoHS compliance (non-compliant vs. compliant), and packaging format (standard vs. Tape & Reel). All functional parameters remain identical.

Q: Which part should be selected for new designs?

A: The 91911-31321LF should be selected for new designs due to its active product status and improved compliance profile. This ensures manufacturer support and regulatory alignment.

Q: Are there packaging implications for using the Tape & Reel format?

A: Tape & Reel packaging is optimized for automated pick-and-place assembly. If manual assembly or non-standard handling is required, packaging compatibility with existing processes should be evaluated.

Q: Do these parts have identical contact specifications?

A: Yes. Both parts feature gold or gold GXT™ contact finish with 15.0µin (0.38µm) thickness, identical mated stacking height of 5mm, and identical height above board of 0.068" (1.73mm).

Q: What is the pitch specification for these connectors?

A: Both parts have a pitch of 0.039" (1.00mm) with 21 positions arranged in 2 rows, maintaining identical center-to-center spacing for PCB footprint compatibility.