Amphenol ICC 68668-003 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68668-003 is a shrouded right-angle header connector with 10 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This through-hole, solder-terminated connector is designed for board-to-cable/wire applications with male pin contacts and gold-plated mating surfaces. The part is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement.

Substiute Parts

68668-003

Amphenol ICC (FCI)In Stock: 80168668-003 Datasheet

Current PartRFQ

68668-003LF

Amphenol ICC (FCI)In Stock: 124368668-003LF Datasheet

DirectRFQ

103166-3

TE Connectivity AMP ConnectorsIn Stock: 1131103166-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution validity for the 68668-003 is determined by strict equivalence across the following parameters: connector type (header), contact type (male pin), mating pitch (0.100"), position count (10), row configuration (2 rows), row spacing (0.100"), mounting method (through hole, right angle), shrouding style (4-wall), termination method (solder), and contact finish (gold). Parts meeting all these criteria are classified as direct substitutes. The 68668-003LF maintains identical specifications and differs only in packaging format and RoHS compliance status. The TE Connectivity 103166-3 meets all core electrical and mechanical parameters but introduces minor dimensional variations in contact length and insulation height, along with different fastening and post-finish specifications.

Parameter Comparison

Engineering Selection Recommendations

The 68668-003LF is the primary substitute for the obsolete 68668-003. Both parts are manufactured by Amphenol ICC (FCI) and maintain identical electrical and mechanical specifications. The 68668-003LF differs only in packaging format (tray versus bulk) and RoHS compliance status. Selection of 68668-003LF is appropriate for applications requiring active product status and RoHS-compliant components.

The TE Connectivity 103166-3 (AMPMODU Mod II series) is a secondary alternative that meets all core connector specifications. This part introduces minor dimensional variations: contact length increases by 0.003" (0.08mm) on the mating end and 0.005" (0.13mm) on the post end, while insulation height decreases by 0.020" (0.51mm). The fastening mechanism differs (detent lock versus push-pull), and the post contact finish is tin-lead rather than unspecified. The 103166-3 includes specified operating temperature range (-65°C to 105°C) and current rating (3A), which are not provided for the original part. Selection of 103166-3 is appropriate when TE Connectivity connector ecosystem compatibility is required or when the specified operating temperature and current ratings are design requirements.

Frequently Asked Questions (FAQ)

Q: Can 68668-003LF be used as a direct replacement for 68668-003?

A: Yes. The 68668-003LF maintains identical connector specifications, pitch, position count, row configuration, mounting type, shrouding, and contact finish. The parts differ only in packaging format and RoHS compliance status. Electrical and mechanical compatibility is complete.

Q: What are the key differences between 68668-003 and 103166-3?

A: Both connectors share the same 0.100" (2.54mm) pitch, 10-position, 2-row configuration, right-angle through-hole mounting, and 4-wall shrouding. Differences include: contact length variations (mating: +0.003", post: +0.005"), insulation height reduction (0.020"), fastening mechanism (detent lock versus push-pull), post contact finish (tin-lead versus unspecified), and insulation material (thermoplastic versus polyester glass-filled). The 103166-3 includes specified operating temperature (-65°C to 105°C) and current rating (3A).

Q: Is the 103166-3 mechanically compatible with PCB layouts designed for 68668-003?

A: The 103166-3 maintains the same 0.100" (2.54mm) pitch and 2-row spacing, ensuring pin-to-pin compatibility. However, the reduced insulation height (0.020" difference) and different fastening mechanism may affect board-level clearances and mating interface design. PCB layout verification is necessary before substitution.

Q: Which substitute part should be selected for new designs?

A: For new designs requiring Amphenol ICC compatibility, select 68668-003LF. For designs requiring TE Connectivity ecosystem integration or specified operating temperature and current ratings, select 103166-3. Both parts are active products with established supply chains.

Q: Are there packaging or supply chain differences between the substitute parts?

A: The 68668-003LF is supplied in tray packaging, while the original 68668-003 packaging format is not specified. The 103166-3 is also supplied in tray packaging. Inventory availability differs: 68668-003LF has 1177 pieces in stock, 103166-3 has 1025 pieces in stock.