Amphenol ICC 74981-902 High Speed Backplane Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 74981-902 is a 108-position high-speed backplane connector receptacle with female sockets, designed for board edge mounting applications. This connector features press-fit termination, shielded construction, and a 0.079" (2.00mm) pitch configuration with 8 rows of contacts. The part is currently classified as obsolete, making identification of active equivalent components essential for ongoing system support and new design implementations.

Substiute Parts

74981-902

Amphenol ICC (FCI)In Stock: 111974981-902 Datasheet

Current PartRFQ

74981-902LF

Amphenol ICC (FCI)In Stock: 83974981-902LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74981-902 is determined by strict equivalence across the following critical parameters:

• Connector Type & Configuration: Receptacle with female sockets, 108 positions, 8-row arrangement
• Electrical Interface: 0.079" (2.00mm) pitch, 96 signal and 12 ground contact layout
• Physical Interface: Board edge mounting, through-hole, right-angle orientation
• Termination Method: Press-fit technology
• Environmental & Compliance Ratings: UL94 V-0 flammability, -55°C to 105°C operating range, 1A current rating

The 74981-902LF meets all these criteria as a direct functional equivalent within the Metral® 1000 series. The primary distinction is product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 74981-902LF is the direct active equivalent for the obsolete 74981-902. Selection between these parts is determined by regulatory and procurement requirements:

Use 74981-902LF when:

• RoHS compliance is required for new designs or system updates
• Active product support and availability are necessary
• Tube packaging is acceptable for assembly operations

Use 74981-902 when:

• Existing inventory must be consumed in legacy system maintenance
• RoHS exemptions apply to the application
• Bulk packaging is preferred for high-volume legacy production runs

Both parts are electrically and mechanically identical across all functional parameters, ensuring direct interchangeability in board-level applications.

Frequently Asked Questions (FAQ)

Q: Are the 74981-902 and 74981-902LF electrically interchangeable? A: Yes. Both connectors share identical electrical specifications including 108 positions, 0.079" pitch, 96 signal and 12 ground contact layout, 1A current rating, and -55°C to 105°C operating range.

Q: What is the primary difference between these two parts? A: The 74981-902LF is the active production equivalent with RoHS compliance and tube packaging. The 74981-902 is obsolete and RoHS non-compliant. All functional and mechanical parameters are identical.

Q: Can I use 74981-902LF as a direct replacement in existing assemblies designed for 74981-902? A: Yes. The parts are mechanically and electrically equivalent. Board edge mounting, through-hole termination, and contact configuration are identical. Packaging format differs (tube vs. bulk), but this does not affect component performance.

Q: Does the packaging difference affect component performance? A: No. Packaging format (tube vs. bulk) is a logistics and handling consideration only. It does not impact electrical performance, mechanical fit, or reliability.

Q: What does RoHS compliance mean for this connector? A: RoHS compliance indicates the 74981-902LF meets restrictions on hazardous substances in electrical and electronic equipment. The 74981-902 does not meet these restrictions and is suitable only for applications with RoHS exemptions.

Q: Are both parts suitable for high-speed backplane applications? A: Yes. Both connectors are rated for high-speed backplane use with identical shielded construction, board guide features, and spacer design.