Molex 0702464021 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0702464021 is a shrouded vertical rectangular connector header with 40 positions at 2.54mm pitch, designed for through-hole board-to-cable/wire applications. This component is classified as obsolete, which necessitates identification of active equivalent parts for ongoing design and procurement requirements. The connector features a 2-row configuration with push-pull fastening, gold-plated mating contacts, and tin-lead post finish on phosphor bronze material. Equivalent parts must maintain the same electrical and mechanical interface specifications to ensure direct substitution without circuit redesign.

Key Parameters

Parameter	Value
Connector Type	Header
Contact Type	Male Pin
Number of Positions	40
Number of Rows	2
Pitch - Mating	0.100" (2.54mm)
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Through Hole
Shrouding	Shrouded - 4 Wall
Fastening Type	Push-Pull
Termination	Solder
Contact Finish - Mating	Gold
Contact Finish - Post	Tin-Lead
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution of the Molex 0702464021 is determined by strict equivalence across the following critical parameters:

Connector Interface: 40-position, 2-row configuration at 0.100" (2.54mm) pitch with 0.100" row spacing
Mounting and Termination: Through-hole solder termination with push-pull fastening
Shrouding Configuration: 4-wall shrouded design for keying and mechanical alignment
Contact System: Male pin headers with gold mating surface and tin-lead post finish
Flammability Compliance: UL94 V-0 rated insulation material

Substitute parts are grouped into two categories:

Category A - Direct Molex Series Equivalents: Parts within the C-Grid 70246 series that maintain identical electrical and mechanical specifications with updated RoHS compliance status.

Category B - Cross-Manufacturer Equivalents: Parts from TE Connectivity, KYOCERA AVX, 3M, and Amphenol ICC that meet all critical interface parameters while offering alternative material compositions, contact finishes, or packaging options.

Parameter Comparison

Part Number	Manufacturer	Positions	Pitch (mm)	Rows	Contact Finish - Mating	Contact Finish - Post	Contact Material	Insulation Material	Product Status	RoHS Status
0702464021	Molex	40	2.54	2	Gold	Tin-Lead	Phosphor Bronze	PBT	Obsolete	Non-compliant
0702464001	Molex	40	2.54	2	Gold	Tin	Phosphor Bronze	PBT, Glass Filled	Active	ROHS3 Compliant
008383040000010	KYOCERA AVX	40	2.54	2	Gold	Nickel	Brass	PA, Nylon	Active	ROHS3 Compliant
103308-8	TE Connectivity	40	2.54	2	Gold or Gold-Palladium	Tin-Lead	Brass	Not specified	Active	Non-compliant
103309-8	TE Connectivity	40	2.54	2	Gold or Gold-Palladium	Tin-Lead	Brass	Not specified	Active	Non-compliant
30340-6002HB	3M	40	2.54	2	Gold	Gold	Brass	PBT, Polyester, Glass Filled	Active	ROHS3 Compliant
5103308-8	TE Connectivity	40	2.54	2	Gold or Gold-Palladium	Tin	Brass	Not specified	Active	ROHS3 Compliant
5103309-8	TE Connectivity	40	2.54	2	Gold or Gold-Palladium	Tin	Brass	Not specified	Active	ROHS3 Compliant
5104338-8	TE Connectivity	40	2.54	2	Gold or Gold-Palladium	Tin	Brass	PPA, Glass Filled	Active	RoHS Compliant
52601-G40-4LF	Amphenol ICC (FCI)	40	2.54	2	Gold or Gold, GXT™	Tin	Phosphor Bronze	Thermoplastic	Active	RoHS Compliant
52601-G40-4RLF	Amphenol ICC (FCI)	40	2.54	2	Gold or Gold, GXT™	Tin	Phosphor Bronze	Thermoplastic	Active	RoHS Compliant

Engineering Selection Recommendations

Primary Recommendation: Molex 0702464001

The Molex 0702464001 is the direct series equivalent within the C-Grid 70246 family. It maintains identical connector geometry, pitch, row configuration, and contact system as the obsolete 0702464021. The primary differences are ROHS3 compliance status and post finish material (tin versus tin-lead). This part is active in production with substantial inventory availability (10,474 units), ensuring supply chain continuity.

Secondary Recommendations for RoHS3 Compliance:

For applications requiring RoHS3 compliance, the following parts are qualified substitutes:

TE Connectivity 5103308-8 and 5103309-8: AMP-Latch series headers with identical 40-position, 2-row 2.54mm pitch configuration. Both are active with RoHS3 compliance. Differences include brass contact material and tin post finish. Operating temperature range extends to -65°C to 105°C.
3M 30340-6002HB: Series 303 header with matching connector interface. Offers gold post finish (versus tin-lead), brass contact material, and extended operating temperature range (-55°C to 105°C). RoHS3 compliant with 884 units in stock.
Amphenol ICC 52601-G40-4LF and 52601-G40-4RLF: Quickie™ series headers with phosphor bronze contacts matching the original material. Both are RoHS compliant. The 52601-G40-4RLF includes press-fit termination option in addition to solder. Inventory levels are 2,700 and 848 units respectively.

Alternative for Extended Temperature Range:

The TE Connectivity 5104338-8 offers kinked pin termination with polyphthalamide (PPA) glass-filled insulation, providing enhanced mechanical robustness. RoHS compliant with -65°C to 105°C operating range.

Frequently Asked Questions (FAQ)

Q: Can the Molex 0702464001 be used as a direct replacement for the 0702464021?

A: Yes. Both parts are within the C-Grid 70246 series and maintain identical electrical and mechanical interface specifications. The primary difference is RoHS3 compliance status of the 0702464001. The post finish change from tin-lead to tin does not affect connector functionality in standard applications.

Q: What are the key differences between tin-lead and tin post finishes?

A: Both finishes provide equivalent solder joint reliability and electrical conductivity. Tin post finish is standard in RoHS3-compliant components. Tin-lead finishes are found in legacy non-compliant parts. Selection depends on manufacturing process compatibility and regulatory requirements.

Q: Are TE Connectivity AMP-Latch headers (103308-8, 103309-8, 5103308-8, 5103309-8) fully compatible?

A: These parts maintain the same 40-position, 2-row 2.54mm pitch interface and push-pull fastening. Mechanical and electrical compatibility is confirmed. Differences include brass versus phosphor bronze contact material and extended operating temperature range (-65°C to 105°C). The 5103308-8 and 5103309-8 variants are RoHS3 compliant.

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

A: Contact finish thickness affects durability and mating cycle life. The original 0702464021 specifies 15.0µin (0.38µm) mating finish. Substitute parts range from 15.0µin to 30.0µin. Thicker finishes provide extended contact life in high-cycle applications. All specified thicknesses meet standard connector reliability requirements.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (tray, tube, bulk) is a logistics consideration only. Electrical and mechanical specifications remain identical across packaging variants. Selection should be based on procurement volume and handling requirements.

Q: Are there operating temperature limitations for the original part?

A: The Molex 0702464021 does not specify an operating temperature range. Substitute parts from TE Connectivity and 3M specify -65°C to -55°C minimum and 105°C maximum. For applications requiring extended temperature operation, these alternatives are recommended.

Q: What is the difference between the Amphenol ICC 52601-G40-4LF and 52601-G40-4RLF?

A: Both are Quickie™ series 40-position headers at 2.54mm pitch. The primary difference is termination type: 52601-G40-4LF uses solder termination only, while 52601-G40-4RLF includes both press-fit and solder termination options. Electrical and mechanical specifications are otherwise identical.

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