Molex 0702871034 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0702871034 is an active-status vertical header connector featuring 72 positions arranged in 2 rows with 0.100" (2.54mm) pitch spacing. This through-hole component is designed for board-to-board or cable interconnection applications across automotive, general purpose, lighting, medical, and telecommunications sectors. The connector employs kinked pin solder termination with push-pull fastening and unshrouded design. Identifying equivalent substitute parts becomes necessary when managing supply chain continuity, optimizing inventory across multiple suppliers, or addressing component availability constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

0702871034

MolexIn Stock: 8990702871034 Datasheet

Current PartRFQ

M20-9763646

Harwin Inc.In Stock: 1440M20-9763646 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0702871034 is determined by strict alignment with the following critical parameters:

• Connector Configuration: 72-position, 2-row header with 0.100" (2.54mm) mating pitch and 0.100" (2.54mm) row spacing
• Contact Architecture: Male pin contacts with square shape
• Mounting & Termination: Through-hole mounting with solder termination capability
• Electrical & Environmental Compliance: UL94 V-0 flammability rating, ROHS3 compliance, and MSL 1 moisture sensitivity level
• Fastening Mechanism: Push-pull fastening type
• Shrouding Configuration: Unshrouded design

The Harwin Inc. M20-9763646 qualifies as a manufacturer-recommended substitute based on matching these core parameters across connector type, position count, pitch spacing, mounting method, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0702871034 and Harwin M20-9763646 maintain active product status and achieve identical compliance certifications including UL94 V-0 flammability rating, ROHS3 compliance, and MSL 1 moisture sensitivity classification. The connectors share core electrical and mechanical parameters: 72-position configuration, 2.54mm pitch spacing, through-hole mounting, push-pull fastening, and tin-plated square contacts.

The primary distinction lies in insulation material composition: the Molex variant employs liquid crystal polymer (LCP) with glass filling, while the Harwin substitute utilizes polyamide (PA6T) nylon 6T. Both materials satisfy UL94 V-0 requirements. The Harwin component provides documented operating temperature range (-40°C to 105°C) and current rating (3A per contact), specifications not provided for the Molex part.

Selection between these parts should be based on supply availability, cost considerations, and any application-specific requirements related to insulation material properties or thermal performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the Harwin M20-9763646 directly replace the Molex 0702871034 in existing designs?

A: Yes, from a mechanical and electrical standpoint. Both connectors feature identical 72-position, 2-row configuration with 0.100" (2.54mm) pitch spacing, through-hole mounting, and push-pull fastening. PCB footprints and mating interface dimensions are compatible. The insulation material differs (LCP glass-filled versus polyamide nylon 6T), which may affect thermal or chemical resistance in specific applications.

Q: Are there differences in contact dimensions between these parts?

A: Minor variations exist in contact length specifications. The Molex part specifies 0.240" (6.10mm) mating contact length and 0.125" (3.18mm) post length, while the Harwin equivalent provides 0.228" (5.80mm) mating and 0.122" (3.10mm) post length. Overall contact length differs slightly: 0.455" (11.56mm) for Molex versus 0.452" (11.48mm) for Harwin. These differences remain within typical manufacturing tolerances for through-hole connector applications.

Q: Do both parts meet the same compliance and certification standards?

A: Yes. Both the Molex 0702871034 and Harwin M20-9763646 achieve UL94 V-0 flammability rating, ROHS3 compliance, and MSL 1 moisture sensitivity level classification. Both are REACH unaffected and classified under ECCN EAR99.

Q: What is the difference between "Breakaway" and "Cuttable" connector types?

A: Both designations indicate the connector can be separated into individual positions or smaller groups. Breakaway and cuttable refer to the same functional capability, with terminology varying by manufacturer. Both the Molex and Harwin connectors support this feature.

Q: Are there inventory or packaging considerations for substitution?

A: Both parts are supplied in bulk packaging. Current inventory levels differ: Molex 0702871034 shows 801 pieces in stock, while Harwin M20-9763646 shows 1351 pieces available. Packaging format remains consistent across both suppliers.