Molex 0702800760 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0702800760 is a vertical header connector with 24 positions at 2.54mm pitch, designed for through-hole board-to-board or cable applications. This connector is classified as Active product status and is fully RoHS3 compliant. Substitute parts become necessary when the primary part faces supply constraints, obsolescence of compatible mating components, or when design requirements align with alternative connector families that meet identical electrical and mechanical specifications.

Substiute Parts

0702800760

MolexIn Stock: 11970702800760 Datasheet

Current PartRFQ

4-102977-0-12

TE Connectivity AMP ConnectorsIn Stock: 11854-102977-0-12 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0702800760 is determined by strict alignment of the following critical parameters:

• Connector pitch: 0.100" (2.54mm) mating pitch and 0.100" row spacing
• Position count and row configuration: 24 positions in 2-row arrangement
• Contact type: Male pin header with square contact shape
• Mounting method: Through-hole solder termination
• Fastening mechanism: Push-pull retention system
• Insulation material class: Thermoplastic or LCP-based polymers with UL94 V-0 rating
• Physical compatibility: Board-to-board or cable connection style

The TE Connectivity AMP Connectors 4-102977-0-12 qualifies as a manufacturer-recommended substitute based on matching all critical electrical and mechanical parameters within the allowed tolerance range for this connector category.

Parameter Comparison

Engineering Selection Recommendations

The Molex 0702800760 is the preferred selection for new designs due to its Active product status and full RoHS3 compliance. This connector meets current regulatory requirements and benefits from ongoing manufacturer support and supply availability.

The TE Connectivity 4-102977-0-12 is classified as Obsolete and carries RoHS non-compliance status. This part is suitable only for legacy system maintenance or repair applications where the original connector specification must be matched exactly. The substitute exhibits minor dimensional variations in contact post length (0.125" versus 0.185") and uses Tin-Lead post finish rather than pure Tin. These differences are within acceptable mechanical tolerance for mating interface compatibility but may introduce considerations for thermal cycling and solder joint reliability in extended-life applications.

Selection between these parts must account for regulatory environment, supply chain constraints, and system lifecycle requirements. The Molex part is appropriate for all new production and forward-compatible designs.

Frequently Asked Questions (FAQ)

Q: Are the Molex 0702800760 and TE Connectivity 4-102977-0-12 mechanically interchangeable?

A: Yes, both connectors share identical mating pitch (0.100"), position count (24), row configuration (2 rows), and contact geometry (square male pins). The mating interface dimensions are compatible within standard connector tolerance specifications. Minor differences in post length and insulation material do not affect mating compatibility.

Q: What is the significance of the contact post length difference between these parts?

A: The Molex part features 0.185" post length while the TE Connectivity part has 0.125" post length. This 0.060" difference affects solder joint formation and thermal mass during wave or reflow soldering. The longer post on the Molex connector provides greater solder fillet volume and improved mechanical strength in high-vibration applications. Both lengths are within acceptable range for standard PCB through-hole assembly processes.

Q: Why is the TE Connectivity part marked as Obsolete?

A: The AMPMODU Mod II series has been discontinued by TE Connectivity. Existing inventory may be available through authorized distributors, but new production is not supported. The Molex C-Grid 70280 series remains in active production and is the recommended choice for ongoing applications.

Q: Does the RoHS compliance difference affect substitution eligibility?

A: The Molex 0702800760 is RoHS3 compliant, while the TE Connectivity 4-102977-0-12 is RoHS non-compliant. For applications subject to RoHS regulations (EU markets, automotive, medical devices), only the Molex part meets legal requirements. The TE Connectivity part is restricted to legacy system support in non-regulated environments or where exemptions apply.

Q: What is the impact of Tin-Lead versus Tin post finish?

A: The TE Connectivity part uses Tin-Lead post finish (100.0µin thickness) while the Molex part uses pure Tin finish (74.8µin thickness). Tin-Lead finishes are associated with legacy manufacturing processes and are restricted in RoHS-regulated applications. Pure Tin finishes are standard in modern lead-free assembly. Both finishes provide adequate corrosion protection and solderability for through-hole applications.

Q: Can these connectors be used in automotive applications?

A: The Molex 0702800760 is listed for automotive applications. The TE Connectivity 4-102977-0-12 does not specify automotive qualification. For automotive designs, the Molex part is the appropriate selection.

Q: What packaging is available for these connectors?

A: Both parts are supplied in Bulk packaging. Minimum order quantities and packaging configurations should be confirmed with authorized distributors based on specific procurement requirements.