Amphenol ICC 91900-21321 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 91900-21321 is a 21-position rectangular connector header with center strip contacts designed for surface mount applications. This connector features gold-plated contacts and solder retention, operating at a 0.039" (1.00mm) pitch across 2 rows. The part is currently listed as obsolete, making identification of active equivalent components essential for ongoing production and maintenance applications.

Substiute Parts

91900-21321

Amphenol ICC (FCI)In Stock: 102091900-21321 Datasheet

Current PartRFQ

91901-31321LF

Amphenol ICC (FCI)In Stock: 113891901-31321LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 91901-31321LF qualifies as a direct substitute for the 91900-21321 based on matching electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Identical number of positions (21)
• Identical pitch specification (0.039" / 1.00mm)
• Identical row configuration (2 rows)
• Identical mounting technology (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 connector type (Header, Center Strip Contacts)
• Identical solder retention feature

The primary distinction between these parts is product status and packaging format. The 91901-31321LF is an active component supplied in Tape & Reel packaging, whereas the 91900-21321 is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The 91901-31321LF is the appropriate selection for applications currently specified with the 91900-21321. This substitution is based on:

• Complete electrical and mechanical parameter equivalence across all specified dimensions and contact characteristics
• Active product status ensuring ongoing availability and supply chain continuity
• RoHS compliance certification of the substitute part
• Identical series designation (Conan™, MezzSelect™) confirming design compatibility
• Tape & Reel packaging format suitable for automated assembly processes

No design modifications or PCB layout changes are required when transitioning from the obsolete 91900-21321 to the 91901-31321LF.

Frequently Asked Questions (FAQ)

Q: Can the 91901-31321LF be used as a direct replacement for the 91900-21321?

A: Yes. All electrical and mechanical parameters are identical, including position count, pitch, row configuration, contact finish, and mounting specifications. The parts are functionally equivalent.

Q: What is the primary difference between these two parts?

A: The 91900-21321 is obsolete, while the 91901-31321LF is an active product. The substitute is supplied in Tape & Reel packaging and carries RoHS compliance certification.

Q: Are there any PCB layout or assembly process changes required?

A: No. The identical mounting type, height above board, and mated stacking height ensure compatibility with existing PCB designs and assembly processes.

Q: Does the Tape & Reel packaging of the 91901-31321LF affect compatibility?

A: No. Packaging format does not affect the connector's electrical or mechanical performance. Tape & Reel packaging is standard for automated surface mount assembly.

Q: Is the 91901-31321LF RoHS compliant?

A: Yes. The 91901-31321LF is RoHS compliant, meeting environmental and regulatory requirements for electronic components.

Q: What is the moisture sensitivity level for both parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.