Molex 0791098655 Equivalent & Substitute Parts

Part Overview

The Molex 0791098655 is a 12-position receptacle connector in the Milli-Grid 79109 series, designed for surface mount applications with 0.079" (2.00mm) pitch. This connector features gold-plated mating contacts, push-pull fastening, and is rated for 1A at 125V. The part is active in production and ROHS3 compliant, making it suitable for automotive, general purpose, and telecommunications applications. Equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Number of Positions	12
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Contact Finish - Mating	Gold
Fastening Type	Push-Pull
Operating Temperature	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0791098655 is determined by the following critical parameters:

12-position receptacle configuration with 2-row layout
0.079" (2.00mm) mating pitch and row spacing
Surface mount termination with solder connection
Push-pull fastening mechanism
Gold-plated mating contacts
Operating temperature range of -55°C to 125°C
ROHS3 compliance and MSL 1 rating

The Samtec TLE-106-01-G-DV-K-TR meets these core substitution criteria. Both connectors share identical position count, pitch geometry, mounting method, fastening type, contact finish material, and environmental ratings. Differences in contact finish thickness, insulation material, and current rating do not preclude substitution when the application requirements align with the substitute part's specifications.

Parameter Comparison

Parameter	Molex 0791098655	Samtec TLE-106-01-G-DV-K-TR
Manufacturer	Molex	Samtec Inc.
Series	Milli-Grid 79109	TLE
Connector Type	Receptacle	Receptacle, Pass Through
Number of Positions	12	12
Pitch - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Number of Rows	2	2
Row Spacing - Mating	0.079" (2.00mm)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount
Termination	Solder	Solder
Fastening Type	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	30.0µin (0.76µm)	10.0µin (0.25µm)
Insulation Color	Black	Black
Insulation Height	0.175" (4.45mm)	0.177" (4.50mm)
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Insulation Material	Thermoplastic, Glass Filled	Liquid Crystal Polymer (LCP)
Contact Material	Phosphor Bronze	Phosphor Bronze
Current Rating	1A	3.2A per Contact
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active

Engineering Selection Recommendations

Both the Molex 0791098655 and Samtec TLE-106-01-G-DV-K-TR are active production parts with ROHS3 compliance and MSL 1 ratings, ensuring regulatory alignment and moisture handling compatibility. The geometric and electrical interface parameters are equivalent, supporting direct substitution in board-level applications.

The Samtec substitute offers higher current capacity (3.2A per contact versus 1A) and uses liquid crystal polymer insulation instead of glass-filled thermoplastic. These characteristics may provide performance advantages in high-current or thermally demanding environments, provided the application PCB layout and mating connector specifications accommodate the substitute part's geometry.

Selection between these parts should be based on application current requirements, thermal environment, and supply availability. Both parts are suitable for automotive, general purpose, and telecommunications applications within the specified operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the Samtec TLE-106-01-G-DV-K-TR directly replace the Molex 0791098655 on existing PCBs?

A: Yes, both connectors share identical mating pitch (0.079"), row spacing (0.079"), position count (12), and mounting footprint geometry. PCB layouts designed for the Molex part will accommodate the Samtec substitute without modification. Verify that the mating connector is compatible with both receptacle types.

Q: What is the difference in contact finish thickness between these parts?

A: The Molex part features 30.0µin (0.76µm) gold plating on mating contacts, while the Samtec part has 10.0µin (0.25µm). Both thicknesses provide adequate contact durability and conductivity for the specified applications. Thicker plating may offer extended contact life in high-cycle mating environments.

Q: Are there differences in insulation material that affect performance?

A: The Molex part uses glass-filled thermoplastic insulation, while the Samtec part uses liquid crystal polymer (LCP). LCP offers superior dimensional stability and thermal performance. Both materials are suitable for the -55°C to 125°C operating range and meet ROHS3 requirements.

Q: What is the significance of the Samtec part being a "Pass Through" connector?

A: Pass-through design allows signal routing through the connector body, enabling daisy-chain or multi-level stacking configurations. This feature does not prevent standard board-to-board or cable applications; it provides additional design flexibility.

Q: How do the current ratings affect substitution decisions?

A: The Molex part is rated for 1A, while the Samtec part is rated for 3.2A per contact. Applications requiring currents above 1A per contact should use the Samtec substitute. Applications within the 1A limit can use either part without derating.

Q: Are both parts available in the same packaging format?

A: Yes, both parts are supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

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