Amphenol ICC 91911-31421 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 91911-31421 is a 21-position connector header with center strip contacts designed for surface mount applications. This component features gold-plated contacts and board guide with solder retention capabilities. The part is classified as obsolete, making identification of compatible alternatives essential for ongoing production and maintenance applications. The primary substitute maintains identical electrical and mechanical specifications while offering active product status and improved compliance certifications.

Substiute Parts

91911-31421

Amphenol ICC (FCI)In Stock: 108491911-31421 Datasheet

Current PartRFQ

91911-31421LF

Amphenol ICC (FCI)In Stock: 88691911-31421LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 91911-31421LF qualifies as a direct substitute based on the following criteria:

Electrical Compatibility: Identical number of positions (21), pitch (0.039"/1.00mm), and contact finish specifications (Gold or Gold, GXT™) with matching contact finish thickness (15.0µin/0.38µm).

Mechanical Compatibility: Matching connector type (Header, Center Strip Contacts), number of rows (2), mounting type (Surface Mount), mated stacking height (6mm), and height above board (0.107"/2.72mm). Both parts include board guide and solder retention features.

Environmental Specifications: Both parts share identical Moisture Sensitivity Level (MSL 1 - Unlimited), ECCN classification (EAR99), and HTSUS code (8536.69.4040).

Key Differentiators: The substitute part is packaged in Tape & Reel format versus bulk packaging, maintains active product status, and achieves RoHS compliance with REACH affected status.

Parameter Comparison

Engineering Selection Recommendations

The 91911-31421LF is the direct equivalent for the obsolete 91911-31421. Selection of the substitute part is based on:

Product Status: The original part is obsolete, while the substitute maintains active product status, ensuring continued availability and manufacturer support.

Compliance Certifications: The substitute achieves RoHS compliance and REACH affected status, meeting current regulatory requirements for electronic component procurement in regulated industries.

Functional Equivalence: All electrical and mechanical parameters remain identical, ensuring drop-in compatibility in existing designs without circuit or layout modifications.

Packaging Consideration: The substitute is supplied in Tape & Reel format, which is standard for high-volume surface mount assembly operations and provides improved handling efficiency compared to bulk packaging.

Frequently Asked Questions (FAQ)

Q: Can the 91911-31421LF be used as a direct replacement for the 91911-31421?

A: Yes. Both parts share identical electrical specifications (21 positions, 0.039" pitch, gold contact finish), mechanical dimensions (6mm stacking height, 0.107" height above board), and mounting characteristics (surface mount with board guide and solder retention). The substitute is functionally equivalent.

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

A: The main differences are product status (obsolete versus active), RoHS compliance (non-compliant versus compliant), and packaging format (bulk versus Tape & Reel). Electrical and mechanical specifications are identical.

Q: Does the Tape & Reel packaging affect compatibility?

A: No. Tape & Reel packaging is a supply format used for automated assembly processes. Once the component is removed from the tape, it functions identically to bulk-packaged versions. The physical component specifications remain unchanged.

Q: Are there any design modifications required when switching to the 91911-31421LF?

A: No design modifications are required. The substitute maintains identical pin count, pitch, mounting type, and board interface dimensions. PCB layouts and mating connectors designed for the original part are fully compatible.

Q: What is the significance of the "LF" suffix in the part number?

A: The "LF" designation indicates lead-free and RoHS-compliant manufacturing, reflecting current environmental and regulatory standards for electronic components.