Amphenol ICC 89891-433LF Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 89891-433LF is a 66-position receptacle connector with 0.100" (2.54mm) pitch, designed for board-to-board applications in automotive, industrial, telecommunications, and general purpose environments. This connector features a bottom or top entry configuration with through-hole solder termination and push-pull fastening. The product is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

89891-433LF

Amphenol ICC (FCI)In Stock: 84189891-433LF Datasheet

Current PartRFQ

71991-333LF

Amphenol ICC (FCI)In Stock: 90471991-333LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 89891-433LF is determined by strict equivalence across the following critical parameters:

• Connector Position Count: 66 positions (non-negotiable for mating compatibility)
• Pitch Specification: 0.100" (2.54mm) mating pitch and row spacing (determines PCB footprint)
• Connector Configuration: Receptacle, bottom or top entry, board-to-board style
• Mounting Method: Through-hole solder termination with push-pull fastening
• Contact Geometry: Female socket contacts with square shape and phosphor bronze material
• Insulation System: Thermoplastic, glass-filled insulation with UL94 V-0 rating

The substitute part 71991-333LF maintains equivalence across all critical mechanical and electrical parameters. Variations in contact finish (mating surface), contact finish thickness, insulation height, contact post length, and mated stacking height do not affect functional interchangeability within the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

The 71991-333LF is the direct substitute for the obsolete 89891-433LF. Both connectors are manufactured by Amphenol ICC within the Dubox™ series and maintain identical mechanical and electrical specifications across all critical parameters.

The primary distinction is product status: the 89891-433LF is obsolete, while the 71991-333LF is active and currently in production. The substitute part carries RoHS compliance and REACH affected status certifications, meeting contemporary regulatory requirements for new designs and ongoing system support.

The contact finish difference (tin versus gold on the mating surface) does not affect functional interchangeability. Both finishes provide adequate corrosion resistance and electrical conductivity for the specified applications in automotive, industrial, telecommunications, and general purpose environments.

Frequently Asked Questions (FAQ)

Q: Can the 71991-333LF be used as a direct replacement for the 89891-433LF in existing designs?

A: Yes. Both connectors share identical position count (66), pitch (0.100"), row configuration, mounting method, and contact geometry. PCB footprints are compatible. The substitute part is electrically and mechanically interchangeable.

Q: What is the difference between the tin and gold contact finishes?

A: The 89891-433LF features tin plating on mating contacts, while the 71991-333LF features gold plating. Both finishes provide adequate electrical conductivity and corrosion resistance. Gold offers enhanced durability in high-cycle mating applications and corrosive environments. The choice between finishes depends on application-specific requirements and cost considerations.

Q: Why is the 89891-433LF obsolete?

A: Product obsolescence is determined by manufacturer production decisions. The 71991-333LF remains in active production and serves the same functional requirements.

Q: Are there packaging differences between these parts?

A: The 89891-433LF packaging is not specified in available documentation. The 71991-333LF is supplied in tube packaging. Verify packaging requirements for your procurement process.

Q: Do both connectors meet the same regulatory standards?

A: Both connectors carry UL94 V-0 flammability rating, MSL 1 (unlimited moisture sensitivity), and EAR99 export classification. The 71991-333LF additionally carries RoHS compliance and REACH affected status certifications.

Q: What is the mated stacking height difference?

A: The 89891-433LF has a mated stacking height of 9.54mm, while the 71991-333LF is 11.04mm. Verify that your application enclosure and connector cavity accommodate the substitute part's stacking height.