Amphenol ICC 68683-303 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68683-303 is a 6-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 gold-plated mating contacts, through-hole solder termination, and push-pull fastening. The part is currently obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain electrical compatibility through matching connector type, position count, pitch, and termination method while accommodating variations in contact materials and finishes.

Substiute Parts

68683-303
Amphenol ICC (FCI)In Stock: 98068683-303 Datasheet
68683-303
Current Part
68683-303LF
Amphenol ICC (FCI)In Stock: 106868683-303LF Datasheet
68683-303LF
Direct
535598-3
TE Connectivity AMP ConnectorsIn Stock: 1160535598-3 Datasheet
535598-3
MFR Recommended
803-41-006-10-001000
Mill-Max Manufacturing Corp.In Stock: 1169803-41-006-10-001000 Datasheet
803-41-006-10-001000
MFR Recommended
803-41-006-10-004000
Mill-Max Manufacturing Corp.In Stock: 781803-41-006-10-004000 Datasheet
803-41-006-10-004000
MFR Recommended
803-43-006-10-001000
Mill-Max Manufacturing Corp.In Stock: 1202803-43-006-10-001000 Datasheet
803-43-006-10-001000
MFR Recommended
803-91-006-10-001000
Mill-Max Manufacturing Corp.In Stock: 1214803-91-006-10-001000 Datasheet
803-91-006-10-001000
MFR Recommended
803-93-006-10-001000
Mill-Max Manufacturing Corp.In Stock: 778803-93-006-10-001000 Datasheet
803-93-006-10-001000
MFR Recommended
803-99-006-10-001000
Mill-Max Manufacturing Corp.In Stock: 981803-99-006-10-001000 Datasheet
803-99-006-10-001000
MFR Recommended
803-99-006-10-004000
Mill-Max Manufacturing Corp.In Stock: 960803-99-006-10-004000 Datasheet
803-99-006-10-004000
MFR Recommended

Key Parameters

Parameter Value
Connector Type Receptacle
Contact Type Female Socket
Number of Positions 6
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
Style Board to Board
Operating Temperature -65°C ~ 125°C
Voltage Rating 1000V
Material Flammability Rating UL94 V-0

Substitute Part Grouping Explanation

Substitution compatibility for the 68683-303 is determined by the following critical parameters: connector type (receptacle), contact type (female socket), number of positions (6), mating pitch (0.100"), row configuration (2 rows with 0.100" spacing), mounting method (through hole), termination type (solder), and fastening mechanism (push-pull). All listed substitutes maintain these core electrical and mechanical specifications.

Secondary parameters including contact material, contact finish composition, insulation material, and contact geometry may vary between substitutes. These variations do not affect functional interchangeability in standard board-to-board applications. Contact finish thickness, insulation height, and contact length specifications show minor dimensional variations across substitutes but remain within acceptable tolerances for standard PCB mounting.

The primary distinction among substitutes relates to product status (active versus obsolete), RoHS compliance status, and packaging format (tube versus bulk). The direct equivalent 68683-303LF maintains identical specifications to the main part while offering active product status and RoHS compliance.

Parameter Comparison

Parameter 68683-303 68683-303LF 803-41-006-10-001000 803-41-006-10-004000 803-43-006-10-001000 803-91-006-10-001000 803-93-006-10-001000 803-99-006-10-001000 803-99-006-10-004000
Manufacturer Amphenol ICC Amphenol ICC Mill-Max Mill-Max Mill-Max Mill-Max Mill-Max Mill-Max Mill-Max
Number of Positions 6 6 6 6 6 6 6 6 6
Pitch - Mating 0.100" 0.100" 0.100" 0.100" 0.100" 0.100" 0.100" 0.100" 0.100"
Number of Rows 2 2 2 2 2 2 2 2 2
Row Spacing - Mating 0.100" 0.100" 0.100" 0.100" 0.100" 0.100" 0.100" 0.100" 0.100"
Mounting Type Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole Through Hole
Termination Solder Solder Solder Solder Solder Solder Solder Solder Solder
Fastening Type Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull Push-Pull
Contact Type Female Socket Female Socket Female Socket Female Socket Female Socket Female Socket Female Socket Female Socket Female Socket
Operating Temperature -65°C ~ 125°C -65°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
Material Flammability Rating UL94 V-0 UL94 V-0 UL94 V-0 UL94 V-0 UL94 V-0 UL94 V-0 UL94 V-0 UL94 V-0 UL94 V-0
Contact Finish - Mating Gold Gold Gold Gold Gold Gold Gold Tin-Lead Tin-Lead
Current Rating (Amps) Not Specified Not Specified 4.5A 4.5A 4.5A 4.5A 4.5A 4.5A 4.5A
Product Status Obsolete Active Active Active Active Active Active Active Active
RoHS Status Non-compliant Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitute: 68683-303LF

The 68683-303LF is the direct equivalent to the obsolete 68683-303, manufactured by Amphenol ICC in the same Dubox™ series. This part maintains identical electrical and mechanical specifications including 6-position configuration, 0.100" pitch, gold-plated mating contacts, and -65°C to 125°C operating range. The 68683-303LF is currently in active production status with RoHS compliance, making it the preferred choice for new designs and production continuity. Packaging is available in tube format with 1007 units in stock.

Alternative Substitutes: Mill-Max 803 Series

The Mill-Max 803 series connectors (803-41-006-10-001000, 803-41-006-10-004000, 803-43-006-10-001000, 803-91-006-10-001000, 803-93-006-10-001000, 803-99-006-10-001000, and 803-99-006-10-004000) provide functional equivalence with the following considerations:

All Mill-Max substitutes maintain the core 6-position, 0.100" pitch, through-hole solder termination, and push-pull fastening specifications. These parts feature beryllium copper contacts with circular geometry versus the phosphor bronze square contacts in the original part. Operating temperature range is -55°C to 125°C, which is narrower than the original -65°C specification. All Mill-Max parts carry ROHS3 compliance and active product status.

Contact finish variations exist among the Mill-Max options: 803-41-006-10-001000, 803-41-006-10-004000, 803-43-006-10-001000, and 803-91-006-10-001000 feature gold-plated mating contacts, while 803-93-006-10-001000, 803-99-006-10-001000, and 803-99-006-10-004000 feature tin-lead mating contacts. Current rating is specified at 4.5A across all Mill-Max options, whereas the original part does not specify current rating.

Packaging options include tube format (803-41-006-10-001000, 803-43-006-10-001000, 803-93-006-10-001000) and bulk format (803-41-006-10-004000, 803-91-006-10-001000, 803-99-006-10-001000, 803-99-006-10-004000).

Note on 535598-3

The TE Connectivity 535598-3 is listed as a substitute but is not functionally equivalent. This part is a 4-position connector, not 6-position, and therefore does not meet the core substitution criteria for the 68683-303.

Frequently Asked Questions (FAQ)

Q: Can I use 68683-303LF as a direct replacement for 68683-303?

A: Yes. The 68683-303LF is manufactured by Amphenol ICC in the same Dubox™ series and maintains identical specifications for connector type, position count, pitch, row configuration, mounting method, termination, and fastening. The primary difference is active product status and RoHS compliance. Packaging is tube format.

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

A: The Amphenol ICC 68683-303LF maintains the original phosphor bronze square contacts with gold plating. Mill-Max 803 series substitutes use beryllium copper contacts with circular geometry. Operating temperature range is -65°C to 125°C for the Amphenol part versus -55°C to 125°C for Mill-Max parts. All Mill-Max options specify 4.5A current rating. Contact finish options in the Mill-Max line include both gold and tin-lead variants.

Q: Does contact material or geometry affect interchangeability?

A: Contact material and geometry variations do not affect functional interchangeability in standard board-to-board applications. Both phosphor bronze and beryllium copper contacts with square or circular geometry are compatible with standard mating connectors at 0.100" pitch. Contact finish (gold versus tin-lead) affects corrosion resistance and solderability but does not prevent mechanical or electrical compatibility.

Q: What is the significance of the operating temperature range difference?

A: The original 68683-303 operates from -65°C to 125°C, while Mill-Max 803 series substitutes operate from -55°C to 125°C. For applications requiring operation below -55°C, the Amphenol ICC 68683-303LF is required. For applications within the -55°C to 125°C range, Mill-Max substitutes are suitable.

Q: Should I choose tube or bulk packaging?

A: Packaging format (tube versus bulk) is a procurement consideration and does not affect electrical or mechanical performance. Tube packaging is suitable for smaller quantity orders and component handling. Bulk packaging is appropriate for high-volume production environments.

Q: Why is 535598-3 listed as a substitute if it has only 4 positions?

A: The 535598-3 is not a functional substitute for the 68683-303. This part does not meet the core substitution criteria due to its 4-position configuration versus the required 6-position specification. This part should not be selected for replacement applications.

Q: Are all substitutes RoHS compliant?

A: The original 68683-303 is RoHS non-compliant. The 68683-303LF is RoHS compliant. All Mill-Max 803 series substitutes are ROHS3 compliant. For applications requiring RoHS compliance, select 68683-303LF or any Mill-Max 803 series option.

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