Amphenol ICC 68000-403 Equivalent & Substitute Parts

Part Overview

The Amphenol ICC 68000-403 is a vertical through-hole rectangular connector header with 3 positions at 0.100" (2.54mm) pitch, designed for board-to-board applications. This connector features male pins with tin-plated mating contacts and phosphor bronze material, rated for 3A per contact across an operating temperature range of -65°C to 125°C. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. Substitute connectors must maintain compatibility across pitch, position count, mounting type, and electrical ratings while accommodating variations in contact geometry and finish specifications.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	3
Number of Rows	1
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Style	Board to Board
Shrouding	Unshrouded
Current Rating	3A per Contact
Operating Temperature	-65°C ~ 125°C
Material Flammability Rating	UL94 V-0
Insulation Color	Black
RoHS Status	RoHS non-compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution logic for the 68000-403 is based on the following critical parameters that must remain constant or compatible:

Fixed Parameters (Must Match):

Pitch: 0.100" (2.54mm)
Number of Positions: 3
Number of Rows: 1
Connector Type: Header
Contact Type: Male Pin
Mounting Type: Through Hole
Termination: Solder
Fastening Type: Push-Pull
Shrouding: Unshrouded
Material Flammability Rating: UL94 V-0
Insulation Color: Black

Variable Parameters (Acceptable Variation):

Contact Length - Mating: Range 0.134" to 0.240" (3.39mm to 6.10mm)
Contact Length - Post: Range 0.095" to 0.190" (2.41mm to 4.83mm)
Overall Contact Length: Range 0.390" to 0.475" (9.90mm to 12.07mm)
Insulation Height: Range 0.090" to 0.116" (2.29mm to 2.95mm)
Contact Shape: Square or Circular
Contact Finish - Mating: Tin, Gold, or Tin-Lead
Contact Material: Phosphor Bronze, Brass, or Copper Alloy
Insulation Material: Various thermoplastic or polyester compositions
Current Rating: 3A (consistent across all substitutes)
Operating Temperature: -55°C to 125°C (acceptable range overlap)
Product Status: Active preferred for obsolete parts

Substitute parts are grouped by manufacturer and series while maintaining electrical and mechanical compatibility within these parameters.

Parameter Comparison

Parameter	68000-403 (Main)	0423751106 (Molex)	0423751923 (Molex)	0423752487 (Molex)	0423752522 (Molex)	2303-6111-TB (3M)	2303-6111-TP (3M)	2303-6151-TB (3M)	350-80-103-00-013101 (Preci-Dip)	350-80-103-01-666101 (Preci-Dip)	350-V3-103-00-006101 (Preci-Dip)
Manufacturer	Amphenol ICC	Molex	Molex	Molex	Molex	3M	3M	3M	Preci-Dip	Preci-Dip	Preci-Dip
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	3	3	3	3	3	3	3	3	3	3	3
Number of Rows	1	1	1	1	1	1	1	1	1	1	1
Connector Type	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header, Breakaway	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Mounting Type	Through Hole	Through Hole	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	Kinked Pin, Solder	Solder	Press-Fit, Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Style	Board to Board	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board or Cable	Board to Board	Board to Board	Board to Board
Shrouding	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded	Unshrouded
Contact Length - Mating	0.230" (5.84mm)	0.240" (6.10mm)	0.190" (4.83mm)	0.232" (5.90mm)	0.232" (5.90mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.230" (5.84mm)	0.134" (3.39mm)	0.141" (3.60mm)	0.141" (3.60mm)
Contact Length - Post	0.095" (2.41mm)	0.125" (3.18mm)	0.190" (4.83mm)	0.153" (3.89mm)	0.153" (3.89mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.120" (3.05mm)	0.121" (3.08mm)	0.110" (2.79mm)	0.114" (2.90mm)
Overall Contact Length	0.425" (10.80mm)	0.455" (11.56mm)	0.470" (11.94mm)	0.475" (12.07mm)	0.475" (12.07mm)	0.450" (11.43mm)	0.450" (11.43mm)	0.450" (11.43mm)	0.416" (10.57mm)	0.390" (9.90mm)	0.394" (10.00mm)
Insulation Height	0.100" (2.54mm)	0.090" (2.29mm)	0.090" (2.29mm)	0.090" (2.29mm)	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.116" (2.95mm)	0.116" (2.95mm)	0.110" (2.79mm)
Contact Shape	Square	Square	Square	Square	Square	Square	Square	Square	Circular	Circular	Circular
Contact Finish - Mating	Tin	Gold	Tin	Gold	Gold	Gold	Tin-Lead	Gold	Tin	Tin	Gold
Contact Material	Phosphor Bronze	Not specified	Not specified	Not specified	Not specified	Copper Alloy	Copper Alloy	Copper Alloy	Brass	Brass	Brass
Current Rating	3A per Contact	Not specified	Not specified	Not specified	Not specified	3A	3A	3A	3A	3A	3A
Operating Temperature	-65°C ~ 125°C	Not specified	Not specified	Not specified	Not specified	-55°C ~ 105°C	-55°C ~ 105°C	-55°C ~ 105°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	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black	Black
Product Status	Obsolete	Active	Active	Active	Active	Active	Active	Active	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	RoHS non-compliant	RoHS non-compliant	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For RoHS3 Compliant Applications:

Molex KK254 series (0423751106, 0423751923, 0423752487, 0423752522) and Preci-Dip 350 series (350-80-103-00-013101, 350-80-103-01-666101, 350-V3-103-00-006101) are ROHS3 compliant and active products. These are preferred for new designs requiring regulatory compliance. Molex parts feature square contacts with gold or tin mating finishes and are available in breakaway configurations. Preci-Dip parts offer circular contact geometry with brass material and extended temperature range to -55°C ~ 125°C, matching the original part's lower temperature limit.

For Legacy System Maintenance:

3M 2300 series (2303-6111-TB, 2303-6111-TP, 2303-6151-TB) maintains RoHS non-compliant status consistent with the 68000-403, supporting retrofit applications in existing equipment. These parts feature copper alloy contacts with gold or tin-lead finishes and operate across -55°C ~ 105°C. The 2303-6151-TB includes kinked pin termination for enhanced mechanical retention.

Contact Geometry Considerations:

The 68000-403 features square contacts. Molex and 3M substitutes maintain square contact geometry. Preci-Dip 350 series parts use circular contacts, which may require mechanical validation in existing mating connector designs due to different contact pressure distribution characteristics.

Temperature Range Compatibility:

The original part operates to -65°C. Preci-Dip 350 series extends to -55°C, meeting the lower bound. Molex and 3M parts operate to -55°C or -105°C respectively, which may be insufficient for applications requiring -65°C operation. Verify application temperature requirements before selection.

Contact Finish Selection:

Tin-plated contacts (0423751923, 2303-6111-TP, 350-80-103-00-013101, 350-80-103-01-666101) match the original part's mating surface finish. Gold-plated alternatives (0423751106, 0423752487, 0423752522, 2303-6111-TB, 2303-6151-TB, 350-V3-103-00-006101) provide enhanced corrosion resistance and lower contact resistance but may require connector design compatibility assessment.

Frequently Asked Questions (FAQ)

Q: Can I substitute a Molex KK254 part for the Amphenol ICC 68000-403 in a board-to-board application?

A: Yes. Molex KK254 series parts (0423751106, 0423751923, 0423752487, 0423752522) maintain the critical parameters: 0.100" (2.54mm) pitch, 3 positions, 1 row, through-hole mounting, solder termination, push-pull fastening, and unshrouded design. Contact geometry is square, matching the original. Verify mating connector compatibility and contact finish requirements. Molex parts are ROHS3 compliant and active products, providing long-term availability.

Q: What is the difference between Preci-Dip 350-80-103-00-013101 and 350-80-103-01-666101?

A: Both parts maintain identical pitch, position count, and electrical ratings. The primary difference is termination type: 350-80-103-00-013101 uses solder termination only, while 350-80-103-01-666101 combines press-fit and solder termination. Press-fit termination provides mechanical retention during assembly before soldering. Select based on PCB design requirements and assembly process compatibility.

Q: Are 3M 2300 series connectors suitable for new designs?

A: 3M 2300 series parts (2303-6111-TB, 2303-6111-TP, 2303-6151-TB) are active products but RoHS non-compliant. For new designs subject to RoHS3 regulations, Molex KK254 or Preci-Dip 350 series are recommended. 3M parts are appropriate for legacy system maintenance and retrofit applications where RoHS compliance is not required.

Q: Why do Preci-Dip 350 series parts have circular contacts instead of square?

A: Preci-Dip 350 series uses circular contact geometry as a design characteristic of that product line. Circular contacts distribute mating force differently than square contacts. Mechanical compatibility with existing mating connectors must be assessed. If the mating connector is designed for square pins, circular pin substitution may result in inadequate contact pressure or misalignment.

Q: What is the significance of contact finish thickness specifications?

A: Contact finish thickness affects durability and electrical performance. The 68000-403 specifies 100.0µin (2.54µm) tin plating on mating contacts. Molex parts vary from 15.0µin (0.38µm) gold to 100.0µin (2.54µm) tin. Thicker finishes provide longer service life in corrosive environments. Thinner gold finishes reduce contact resistance but may wear faster under high-cycle mating. Select based on environmental exposure and mating cycle requirements.

Q: Can I use a substitute part with a different operating temperature range?

A: Operating temperature range must encompass your application's thermal requirements. The 68000-403 operates -65°C ~ 125°C. Molex and 3M parts operate -55°C ~ 105°C or -55°C ~ 125°C respectively. If your application requires -65°C operation, only Preci-Dip 350 series (-55°C ~ 125°C) approaches this specification. Verify that the substitute's temperature range fully covers your application's minimum and maximum operating conditions.

Q: What does "Number of Positions Loaded" mean in the Molex specifications?

A: Number of Positions Loaded indicates how many of the available contact positions are populated in the connector housing. Molex 0423751106 specifies 2 positions loaded in a 3-position housing, while other Molex parts specify all 3 positions loaded. For direct substitution of the 68000-403, select parts with all 3 positions loaded to maintain electrical functionality.

Q: Are there mechanical footprint differences between these substitutes?

A: Yes. Overall contact length varies from 0.390" (9.90mm) to 0.475" (12.07mm). Insulation height ranges from 0.090" (2.29mm) to 0.116" (2.95mm). These variations affect PCB clearance and mating connector engagement depth. Verify that substitute parts fit within your PCB layout constraints and mate properly with existing connector receptacles before design release.

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