Molex 0877582017 Rectangular Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0877582017 is an active-status rectangular connector header designed for through-hole mounting applications. This vertical-mount, 20-position connector with 2.00mm pitch serves board-to-board and cable interconnection requirements across automotive, general purpose, and telecommunications sectors. Substitute parts are identified to provide alternative sourcing options while maintaining electrical and mechanical compatibility within the specified parameter envelope.

Substiute Parts

0877582017

MolexIn Stock: 9000877582017 Datasheet

Current PartRFQ

TMM-110-03-G-D

Samtec Inc.In Stock: 6823TMM-110-03-G-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0877582017 are qualified based on the following critical parameters that determine functional and mechanical interchangeability:

• Pitch - Mating: 0.079" (2.00mm) — exact match required
• Number of Positions: 20 — exact match required
• Number of Rows: 2 — exact match required
• Row Spacing - Mating: 0.079" (2.00mm) — exact match required
• Contact Type: Male Pin — exact match required
• Mounting Type: Through Hole — exact match required
• Termination: Solder — exact match required
• Contact Finish - Mating: Gold — exact match required
• Contact Material: Phosphor Bronze — exact match required
• RoHS Status: ROHS3 Compliant — compliance requirement
• MSL Rating: 1 (Unlimited) — moisture sensitivity requirement

The Samtec TMM-110-03-G-D meets all critical substitution criteria and qualifies as a direct equivalent for the Molex 0877582017.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0877582017 and Samtec TMM-110-03-G-D are active-status products with ROHS3 compliance and REACH unaffected status, qualifying them for equivalent use in regulated applications. The Samtec part provides additional specification data including operating temperature range (-55°C ~ 125°C) and current rating (3.2A per contact), which may be beneficial for thermal and power management analysis in system design. The insulation material differs (polyamide versus liquid crystal polymer), with LCP offering superior dimensional stability and chemical resistance. Contact finish thickness on the mating surface is lower for the Samtec part (20.0µin versus 30.0µin), while post finish differs (gold versus tin). These material and finish variations remain within acceptable substitution parameters for the specified connector category.

Frequently Asked Questions (FAQ)

Q: Can the Samtec TMM-110-03-G-D directly replace the Molex 0877582017 in existing designs?

A: Yes. Both connectors share identical mating pitch (2.00mm), position count (20), row configuration (2), contact type (male pin), and mounting method (through-hole solder). Mechanical and electrical compatibility is established through these core parameters.

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

A: The Molex part specifies 30.0µin (0.76µm) gold on the mating surface, while the Samtec part specifies 20.0µin (0.51µm). Both thicknesses provide adequate corrosion protection and electrical conductivity for the connector category. Selection may depend on environmental exposure and contact wear expectations in specific applications.

Q: Why does the Samtec part have a different post finish (gold versus tin)?

A: Post finish (the solder-side termination) does not affect mating compatibility. The Samtec gold finish on posts may offer improved solderability and corrosion resistance compared to tin, depending on assembly process parameters and storage conditions.

Q: How do the insulation materials compare?

A: The Molex part uses glass-filled polyamide (PA46), while the Samtec part uses liquid crystal polymer (LCP). LCP provides superior dimensional stability, lower moisture absorption, and enhanced chemical resistance. Both materials meet the UL94 V-0 flammability requirement for the Molex part and support the MSL 1 (unlimited) moisture sensitivity rating for both parts.

Q: Are there packaging differences between these parts?

A: The Molex 0877582017 is supplied in trays, while the Samtec TMM-110-03-G-D is supplied in bulk packaging. Packaging selection should align with assembly process requirements and inventory management practices.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8536.69.4040, meeting identical regulatory requirements for export and use in regulated industries.