TMM-117-03-G-D Equivalent & Substitute Parts

Part Overview

The TMM-117-03-G-D is an active rectangular connector header manufactured by Samtec Inc. This through-hole vertical header features 34 positions arranged in 2 rows with 0.079" (2.00mm) pitch, designed for board-to-board or cable connections. The connector utilizes phosphor bronze contacts with gold plating on mating surfaces and is rated for 3.2A per contact across an operating temperature range of -55°C to 125°C. Samtec's TMM series headers are widely used in applications requiring reliable interconnection with push-pull fastening. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative inventory sources while maintaining electrical and mechanical compatibility.

Substiute Parts

TMM-117-03-G-D

Samtec Inc.In Stock: 1007TMM-117-03-G-D Datasheet

Current PartRFQ

0877583416

MolexIn Stock: 68250877583416 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TMM-117-03-G-D are identified based on strict electrical and mechanical parameter alignment. The primary substitution criteria include:

Critical Matching Parameters:

• Connector type (Header with male pins)
• Position count (34 positions)
• Row configuration (2 rows)
• Mating pitch (0.079" / 2.00mm)
• Row spacing (0.079" / 2.00mm)
• Mounting method (Through Hole)
• Termination type (Solder)
• Fastening mechanism (Push-Pull)
• Contact material (Phosphor Bronze)
• Contact finish on mating surface (Gold)

The Molex 0877583416 (Milli-Grid 87758 series) meets all critical electrical and mechanical parameters required for functional equivalence. Both connectors share identical position counts, pitch specifications, row spacing, and contact material composition. Both employ gold-plated mating surfaces and phosphor bronze contacts, ensuring electrical compatibility. The through-hole solder termination and push-pull fastening type are identical across both parts.

Parameter Comparison

Engineering Selection Recommendations

Both the TMM-117-03-G-D and 0877583416 are active products with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The connectors are functionally equivalent for applications requiring 34-position, 2-row through-hole headers with 2.00mm pitch and push-pull fastening.

The TMM-117-03-G-D features Liquid Crystal Polymer (LCP) insulation material, while the Molex 0877583416 uses glass-filled polyamide (PA46). Both insulation materials are suitable for the specified operating temperature range. The Molex part includes breakaway capability, providing additional design flexibility for applications requiring individual position separation.

Contact post length differs slightly between the two parts: TMM-117-03-G-D measures 0.106" (2.69mm) while the Molex 0877583416 measures 0.102" (2.60mm). This 0.004" (0.09mm) difference is within typical PCB assembly tolerances and does not affect functional compatibility for standard through-hole solder applications.

The mating contact finish thickness on the Molex part is 15.0µin (0.38µm) compared to 20.0µin (0.51µm) on the Samtec part. Both thicknesses provide adequate gold plating for reliable electrical contact and corrosion resistance within the specified operating environment.

Selection between these parts should be based on inventory availability, lead time requirements, packaging format preference (Bulk versus Tray), and any specific design requirements related to insulation material properties or breakaway functionality.

Frequently Asked Questions (FAQ)

Q: Are the TMM-117-03-G-D and 0877583416 mechanically interchangeable?

A: Yes. Both connectors share identical mating pitch (0.079" / 2.00mm), row spacing (0.079" / 2.00mm), position count (34), row configuration (2 rows), and contact geometry (square male pins). The minor difference in contact post length (0.004" / 0.09mm) falls within standard PCB assembly tolerances and does not prevent mechanical mating or solder joint formation.

Q: What is the difference in insulation material between these parts?

A: The TMM-117-03-G-D uses Liquid Crystal Polymer (LCP) insulation, while the Molex 0877583416 uses glass-filled polyamide (PA46). Both materials are rated for the operating temperature range of -55°C to 125°C. LCP offers superior dimensional stability and lower moisture absorption, while glass-filled polyamide provides enhanced mechanical strength. Material selection depends on specific application requirements.

Q: Does the difference in mating contact finish thickness affect electrical performance?

A: No. The TMM-117-03-G-D features 20.0µin (0.51µm) gold plating while the Molex 0877583416 features 15.0µin (0.38µm). Both thicknesses exceed minimum requirements for reliable electrical contact and corrosion resistance in standard operating environments. The difference does not impact signal integrity or current-carrying capacity.

Q: What is the significance of the breakaway feature on the Molex part?

A: The Molex 0877583416 includes breakaway capability, allowing individual positions to be separated if required by the application. The TMM-117-03-G-D does not feature this capability. Breakaway functionality provides design flexibility for applications requiring custom connector configurations but is not required for standard board-to-board or cable connections.

Q: Are both parts suitable for the same current and voltage applications?

A: The TMM-117-03-G-D is rated for 3.2A per contact. The Molex 0877583416 does not specify a current rating in the provided data. For applications requiring confirmed current ratings, the Samtec TMM-117-03-G-D provides explicit 3.2A per contact specification. Contact the manufacturer for current rating confirmation on the Molex part if this parameter is critical to your application.

Q: What packaging formats are available?

A: The TMM-117-03-G-D is supplied in Bulk packaging, while the Molex 0877583416 is supplied in Tray packaging. Packaging format may affect handling, storage, and assembly line integration. Verify packaging compatibility with your procurement and assembly processes.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the TMM-117-03-G-D and 0877583416 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components in most markets.