Amphenol ICC 74993-102 Backplane Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 74993-102 is a 96-position high-speed backplane connector header with male pins configured for through-hole mounting. This component is classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing system support and new designs. The connector features a 0.079" (2.00mm) pitch configuration across 9 rows with press-fit termination and gold-plated contacts rated for -55°C to 105°C operation.

Substiute Parts

74993-102

Amphenol ICC (FCI)In Stock: 94074993-102 Datasheet

Current PartRFQ

74993-102LF

Amphenol ICC (FCI)In Stock: 89674993-102LF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74993-102 is determined by the following critical parameters:

• Connector Series: Must belong to Metral® 1000 family to ensure mechanical and electrical compatibility
• Pitch: Must maintain 0.079" (2.00mm) spacing for PCB layout compatibility
• Connector Type: Must be Header with Male Pins for mating interface consistency
• Mounting Type: Must be Through Hole to match existing PCB designs
• Termination Method: Must be Press-Fit to align with assembly processes
• Contact Finish: Must be Gold to maintain electrical performance and corrosion resistance
• Operating Temperature Range: Must support -55°C to 105°C minimum
• Material Flammability: Must meet UL94 V-0 standard

The substitute part 74993-102LF meets all these core parameters while offering enhanced specifications including active product status, RoHS compliance, and shielding features that provide superior performance characteristics for modern applications.

Parameter Comparison

Engineering Selection Recommendations

The 74993-102LF serves as the primary substitute for the obsolete 74993-102 based on the following engineering criteria:

Product Status Alignment: The 74993-102LF maintains active product status within the Metral® 1000 series, ensuring continued manufacturer support, availability, and supply chain stability compared to the obsolete 74993-102.

Regulatory Compliance: The 74993-102LF achieves RoHS compliance, meeting current environmental and regulatory requirements for electronic components in most jurisdictions. The original 74993-102 is RoHS non-compliant, which may restrict its use in new designs or regulated applications.

Certification Maintenance: Both parts maintain UL94 V-0 flammability rating and identical operating temperature specifications (-55°C to 105°C), ensuring thermal and safety performance equivalence.

Mechanical and Electrical Compatibility: Identical pitch (0.079"/2.00mm), connector type (Header, Male Pins), mounting method (Through Hole), and termination approach (Press-Fit) ensure direct PCB layout compatibility and assembly process alignment.

Enhanced Features: The 74993-102LF incorporates shielding and specifies a 1A current rating, providing improved electromagnetic performance and clearer electrical specifications for system design purposes.

Frequently Asked Questions (FAQ)

Q: Can the 74993-102LF directly replace the 74993-102 in existing designs?

A: Yes. Both connectors share identical pitch (0.079"/2.00mm), row configuration compatibility, through-hole mounting, press-fit termination, and gold contact finish. The 74993-102LF accommodates 108 positions versus 96 in the original, but this represents an expansion of available signal paths rather than a functional incompatibility. PCB footprints must be evaluated for the specific row and column arrangement of each part.

Q: What is the significance of the position count difference (96 vs. 108)?

A: The 74993-102 provides 96 signal positions across 9 rows. The 74993-102LF provides 108 total positions across 8 rows, with 96 designated for signals and 12 for ground. This configuration change reflects modern high-speed connector design practices incorporating dedicated ground planes for signal integrity. Existing designs using only 96 positions can accommodate this substitute without functional impact.

Q: Why is RoHS compliance important for this substitution?

A: RoHS compliance indicates the component meets current environmental regulations restricting hazardous substances. The 74993-102LF's RoHS compliance status enables its use in new product designs and regulated markets, whereas the non-compliant 74993-102 may face restrictions or require special justification in modern applications.

Q: Are the operating temperature ranges equivalent?

A: Yes. Both the 74993-102 and 74993-102LF operate across -55°C to 105°C, ensuring thermal performance equivalence for applications within this range.

Q: What does the shielding feature on the 74993-102LF provide?

A: Shielding on the 74993-102LF reduces electromagnetic interference (EMI) and improves signal integrity for high-speed applications. This feature is not specified on the original 74993-102 but represents an enhancement for systems requiring improved electromagnetic performance.

Q: Is the 1A current rating on the 74993-102LF a limiting factor?

A: The 74993-102LF specifies a 1A current rating per contact. The original 74993-102 does not provide a current specification. System designs must ensure individual signal currents remain within this 1A limit. For applications requiring higher per-contact current capacity, alternative connector families should be evaluated.