Amphenol ICC 68683-339 78-Position Rectangular Connector Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68683-339 is a 78-position receptacle connector in the Dubox™ series, designed for board-to-board applications with 0.100" (2.54mm) pitch and through-hole solder termination. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. The connector features gold-plated mating contacts, tin-plated posts, and operates across -65°C to 125°C with a 1000V voltage rating.

Substiute Parts

68683-339

Amphenol ICC (FCI)In Stock: 75368683-339 Datasheet

Current PartRFQ

68683-339LF

Amphenol ICC (FCI)In Stock: 71968683-339LF Datasheet

DirectRFQ

803-41-078-10-001000

Mill-Max Manufacturing Corp.In Stock: 924803-41-078-10-001000 Datasheet

MFR RecommendedRFQ

803-41-078-10-004000

Mill-Max Manufacturing Corp.In Stock: 869803-41-078-10-004000 Datasheet

MFR RecommendedRFQ

803-43-078-10-001000

Mill-Max Manufacturing Corp.In Stock: 862803-43-078-10-001000 Datasheet

MFR RecommendedRFQ

803-91-078-10-001000

Mill-Max Manufacturing Corp.In Stock: 1221803-91-078-10-001000 Datasheet

MFR RecommendedRFQ

803-93-078-10-001000

Mill-Max Manufacturing Corp.In Stock: 964803-93-078-10-001000 Datasheet

MFR RecommendedRFQ

803-99-078-10-001000

Mill-Max Manufacturing Corp.In Stock: 1088803-99-078-10-001000 Datasheet

MFR RecommendedRFQ

803-99-078-10-004000

Mill-Max Manufacturing Corp.In Stock: 1128803-99-078-10-004000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 68683-339 is determined by strict adherence to the following critical parameters:

Primary Substitution Criteria:

• Connector type: Receptacle
• Number of positions: 78
• Pitch - mating: 0.100" (2.54mm)
• Number of rows: 2
• Row spacing - mating: 0.100" (2.54mm)
• Mounting type: Through hole
• Termination: Solder
• Fastening type: Push-pull
• Contact type: Female socket
• Style: Board to board
• Material flammability rating: UL94 V-0

Secondary Parameters Allowing Variation:

• Contact finish - mating (gold or tin-lead acceptable)
• Contact finish thickness - mating (10.0µin to 30.0µin acceptable)
• Insulation material (PPS glass-filled or PCT polyester acceptable)
• Insulation height (0.272" to 0.276" acceptable)
• Contact length - post (0.115" to 0.118" acceptable)
• Operating temperature range (minimum -55°C acceptable; maximum 125°C required)
• Contact material (phosphor bronze or beryllium copper acceptable)
• Contact finish - post (tin or tin-lead acceptable)

The 68683-339LF is a direct equivalent from the same manufacturer with identical specifications and active product status. Mill-Max Manufacturing Corp. 803 series connectors provide functional equivalence with minor variations in contact material, insulation material, and operating temperature minimum.

Parameter Comparison

Engineering Selection Recommendations

68683-339LF (Amphenol ICC): This is the primary substitute for the obsolete 68683-339. It maintains identical electrical and mechanical specifications while offering active product status and RoHS compliance. The 68683-339LF is functionally equivalent with no design modifications required.

803-43-078-10-001000 (Mill-Max): This substitute provides the closest match to the original specification with gold-plated mating contacts at 30.0µin thickness and identical insulation height. It offers active product status and ROHS3 compliance. The contact material differs (beryllium copper versus phosphor bronze) and the insulation material is PCT polyester instead of PPS glass-filled, with operating temperature minimum of -55°C instead of -65°C.

803-93-078-10-001000 (Mill-Max): Functionally equivalent to 803-43-078-10-001000 with identical gold contact finish thickness and insulation specifications. Offers ROHS3 compliance and active product status.

803-41-078-10-001000 and 803-91-078-10-001000 (Mill-Max): These variants feature reduced gold plating thickness (10.0µin) on mating contacts. The 803-91-078-10-001000 uses tin-lead post finish instead of tin. Both offer active product status and meet UL94 V-0 flammability requirements.

803-99-078-10-001000 and 803-99-078-10-004000 (Mill-Max): These parts feature tin-lead mating contact finish instead of gold, with 100.0µin thickness. They provide the highest current rating specification (4.5A) and offer ROHS3 compliance and active product status.

Frequently Asked Questions (FAQ)

Q: Can I use 68683-339LF as a direct replacement for 68683-339?

A: Yes. The 68683-339LF is a direct equivalent with identical electrical and mechanical specifications. The primary difference is product status (active versus obsolete) and RoHS compliance. No design modifications are required.

Q: What are the key differences between Amphenol ICC and Mill-Max substitutes?

A: Amphenol ICC 68683-339LF maintains the original PPS glass-filled insulation material and phosphor bronze contacts. Mill-Max 803 series connectors use PCT polyester insulation and beryllium copper contacts. Both meet UL94 V-0 flammability requirements. The operating temperature minimum for Mill-Max parts is -55°C versus -65°C for the original.

Q: Which Mill-Max part should I select?

A: Selection depends on contact finish requirements. For gold-plated mating contacts matching the original specification, use 803-43-078-10-001000 or 803-93-078-10-001000 (30.0µin thickness) or 803-41-078-10-001000 or 803-91-078-10-001000 (10.0µin thickness). For tin-lead mating contacts, use 803-99-078-10-001000 or 803-99-078-10-004000.

Q: Are there packaging differences between these parts?

A: Yes. The 68683-339LF is supplied in tube packaging. All Mill-Max 803 series substitutes are supplied in bulk packaging. Verify packaging requirements for your procurement process.

Q: Do all substitutes meet the same voltage and temperature specifications?

A: The 68683-339LF matches the original 1000V voltage rating and -65°C to 125°C operating range. Mill-Max 803 series parts operate from -55°C to 125°C (narrower low-temperature range) and do not specify voltage rating in the provided data.

Q: What is the difference between contact finish thicknesses?

A: Contact finish thickness affects durability and wear resistance. The original 68683-339 specifies 30.0µin gold plating on mating contacts. Mill-Max alternatives offer 10.0µin (reduced durability), 30.0µin (equivalent), or 100.0µin (tin-lead, enhanced durability) options.

Q: Are RoHS considerations important for my application?

A: The original 68683-339 is RoHS non-compliant. The 68683-339LF and all Mill-Max 803 series parts are RoHS compliant or ROHS3 compliant, meeting current environmental regulations for new designs and production.