Molex 0879140827 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0879140827 is an 8-position vertical header connector with 2.54mm pitch, designed for through-hole board-to-board or cable applications. This connector features a breakaway design with unshrouded construction and solder termination. The part is currently active in production with 631 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit functional equivalents.

Substiute Parts

0879140827

MolexIn Stock: 6880879140827 Datasheet

Current PartRFQ

M20-9970445

Harwin Inc.In Stock: 6332M20-9970445 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The Harwin Inc. M20-9970445 is identified as a substitute for the Molex 0879140827 based on the following critical parameters:

• Connector Configuration: Both parts are 8-position, 2-row headers with 0.100" (2.54mm) pitch and row spacing
• Mounting and Termination: Both utilize through-hole solder termination with push-pull fastening
• Electrical and Mechanical Compatibility: Both feature male pin contacts, unshrouded design, and board-to-board or cable style applications
• Compliance Standards: Both are ROHS3 compliant with UL94 V-0 flammability rating and MSL 1 moisture sensitivity level
• Contact Configuration: Both have all positions loaded with square-shaped male pins

Substitution is valid where the mechanical footprint, electrical interface, and regulatory compliance requirements are met.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0879140827 and Harwin M20-9970445 meet the core functional and compliance requirements for 8-position, 2.54mm pitch header connectors in through-hole applications. Selection between these parts should be based on:

Product Status and Availability: Both parts are active in production. The Harwin M20-9970445 offers higher inventory availability at 6291 units compared to 631 units for the Molex part.

Regulatory Compliance: Both parts are ROHS3 compliant, UL94 V-0 rated, and carry MSL 1 moisture sensitivity classification, meeting equivalent compliance standards.

Physical Dimensions: Minor variations exist in contact length and insulation height. The Harwin part has a slightly longer overall contact length (0.551" vs 0.533") and marginally taller insulation height (0.100" vs 0.098"). These differences are within typical manufacturing tolerances for this connector class.

Material and Contact Finish Differences: The Molex part features tin-plated copper alloy contacts with LCP insulation, while the Harwin part uses gold-plated brass contacts with polyamide insulation. These material differences do not preclude functional substitution in standard applications.

Packaging Consideration: The Molex part is supplied in tape and reel format, while the Harwin part is supplied in bulk packaging. Procurement and assembly processes should account for this packaging difference.

Frequently Asked Questions (FAQ)

Q: Can the Harwin M20-9970445 directly replace the Molex 0879140827 in existing designs?

A: Yes, for applications where the 8-position, 2-row, 2.54mm pitch through-hole header configuration is the primary requirement. Both parts share identical pitch, row spacing, contact type, mounting method, and termination approach. Minor dimensional variations in contact length and insulation height fall within acceptable tolerances for standard board-to-board and cable applications.

Q: What are the key differences between these two parts?

A: The primary differences are contact finish (tin vs. gold), contact material (copper alloy vs. brass), insulation material (LCP vs. polyamide), and connector style designation (breakaway vs. cuttable). The Harwin part also provides specified operating temperature range (-40°C to 105°C) and current rating (3A per contact), which are not specified for the Molex part.

Q: Are there any compliance or certification concerns with substitution?

A: No. Both parts are ROHS3 compliant, UL94 V-0 rated, and carry identical moisture sensitivity levels. Substitution does not introduce compliance risks in applications where either part meets the original design requirements.

Q: How do the packaging formats differ?

A: The Molex 0879140827 is supplied in tape and reel (TR) format, suitable for automated assembly processes. The Harwin M20-9970445 is supplied in bulk packaging. Assembly and procurement workflows should be adjusted accordingly.

Q: Which part should be selected for new designs?

A: Selection should be based on availability, cost, supply chain stability, and specific application requirements. Both parts are functionally equivalent for standard 8-position header applications. The Harwin part offers higher inventory availability and specified electrical ratings.