Molex 0702800740 Equivalent & Substitute Parts

Part Overview

The Molex 0702800740 is an active rectangular connector header designed for through-hole mounting applications. This 64-position, 2-row connector with 0.100" (2.54mm) pitch serves board-to-board and cable interconnection requirements across automotive, medical, telecommunications, and general-purpose applications. Substitute parts are identified to address inventory availability, lead time constraints, or specific application requirements while maintaining electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Connector Type	Header, Breakaway
Contact Type	Male Pin
Number of Positions	64
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Termination	Solder
Fastening Type	Push-Pull
Shrouding	Unshrouded
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0702800740 is determined by strict alignment with the following critical parameters:

Connector Configuration: 64-position, 2-row header with 0.100" (2.54mm) mating pitch and 0.100" (2.54mm) row spacing
Contact Type: Male pin configuration
Mounting and Termination: Through-hole solder termination with push-pull fastening
Shrouding: Unshrouded design
Compliance: UL94 V-0 flammability rating and MSL 1 moisture sensitivity

The identified substitute parts—Amphenol ICC (FCI) 77313-124-64LF and 77313-824-64LF—meet all critical electrical and mechanical parameters. Variations in contact length, insulation material, contact finish composition, and contact finish thickness do not preclude substitution when the mating interface, pitch, position count, and mounting method remain identical.

Parameter Comparison

Parameter	Molex 0702800740	Amphenol ICC 77313-124-64LF	Amphenol ICC 77313-824-64LF
Manufacturer	Molex	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Series	C-Grid 70280	BERGSTIK®	BERGSTIK®
Connector Type	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin
Number of Positions	64	64	64
Number of Rows	2	2	2
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Through Hole	Through Hole	Through Hole
Termination	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull
Shrouding	Unshrouded	Unshrouded	Unshrouded
Contact Shape	Square	Square	Square
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0
Insulation Color	Black	Black	Black
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	ROHS3 Compliant	RoHS Compliant	RoHS Compliant
Product Status	Active	Active	Active
Contact Length - Mating	0.320" (8.13mm)	0.266" (6.75mm)	0.266" (6.75mm)
Contact Length - Post	0.185" (4.70mm)	0.114" (2.90mm)	0.114" (2.90mm)
Overall Contact Length	0.595" (15.11mm)	0.480" (12.19mm)	0.480" (12.19mm)
Insulation Height	0.090" (2.29mm)	0.100" (2.54mm)	0.100" (2.54mm)
Contact Finish - Mating	Tin	Gold or Gold, GXT™	Gold or Gold, GXT™
Contact Material	Copper Alloy	Phosphor Bronze	Phosphor Bronze
Insulation Material	Liquid Crystal Polymer (LCP), Glass Filled	Thermoplastic	Thermoplastic
Current Rating (Amps)	Not specified	3A per Contact	3A per Contact
Operating Temperature	Not specified	-65°C ~ 130°C	-65°C ~ 130°C

Engineering Selection Recommendations

All three parts maintain active product status and comply with UL94 V-0 flammability requirements and MSL 1 moisture sensitivity specifications. The Amphenol ICC 77313-124-64LF and 77313-824-64LF are functionally equivalent substitutes for the Molex 0702800740 based on matching connector configuration, pitch, position count, and mounting method.

The Amphenol ICC parts provide specified operating temperature range (-65°C ~ 130°C) and current rating (3A per contact), whereas the Molex part does not specify these parameters. Both Amphenol ICC substitutes feature gold or gold GXT™ mating contact finish compared to the Molex tin finish, and phosphor bronze contact material compared to copper alloy. These material differences do not affect mechanical or electrical compatibility at the mating interface.

Selection between 77313-124-64LF and 77313-824-64LF depends on contact finish thickness requirements: 77313-124-64LF provides 30.0µin (0.76µm) mating contact finish thickness, while 77313-824-64LF provides 15.0µin (0.38µm). Both maintain identical post contact finish thickness of 78.7µin (2.00µm).

Frequently Asked Questions (FAQ)

Q: Can Amphenol ICC 77313-124-64LF or 77313-824-64LF be used as direct replacements for Molex 0702800740?

A: Yes. Both Amphenol ICC parts are functionally equivalent substitutes. They share identical mating pitch (0.100"), row spacing (0.100"), position count (64), row configuration (2), connector type (header, breakaway), contact type (male pin), mounting method (through-hole solder), and fastening type (push-pull). The mating interface is compatible.

Q: What are the differences between Amphenol ICC 77313-124-64LF and 77313-824-64LF?

A: The primary difference is mating contact finish thickness. The 77313-124-64LF provides 30.0µin (0.76µm) gold or gold GXT™ finish, while the 77313-824-64LF provides 15.0µin (0.38µm). Both use identical post contact finish (78.7µin tin) and phosphor bronze contact material. Selection depends on application-specific contact finish thickness requirements.

Q: Are there mechanical compatibility concerns with the different contact lengths?

A: Contact length differences (Molex 0.320" mating vs. Amphenol ICC 0.266" mating) do not affect compatibility when mating with standard 0.100" pitch receptacles. The mating interface depth is determined by receptacle design, not header contact length. Verify receptacle specifications for your application.

Q: Do the different insulation materials affect performance?

A: The Molex part uses liquid crystal polymer (LCP) glass-filled insulation, while Amphenol ICC parts use thermoplastic insulation. Both materials meet UL94 V-0 flammability requirements. Material selection does not affect electrical or mechanical compatibility at the mating interface.

Q: What is the significance of the gold finish on Amphenol ICC parts versus tin on the Molex part?

A: Gold finish provides enhanced corrosion resistance and contact reliability compared to tin. Both finishes are suitable for standard applications. Gold finish is preferred in high-reliability or corrosive environments. Verify application requirements before selection.

Q: Are all three parts RoHS compliant?

A: Yes. The Molex 0702800740 is ROHS3 compliant. Both Amphenol ICC parts (77313-124-64LF and 77313-824-64LF) are RoHS compliant. All three parts meet RoHS requirements for restricted substance elimination.

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