Molex 0791099212 Equivalent & Substitute Parts

Part Overview

The Molex 0791099212 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 with 1162 units in current inventory. Equivalent and substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design requirements permit functional alternatives.

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 Type	Female Socket
Contact Finish - Mating	Gold
Fastening Type	Push-Pull
Termination	Solder
Operating Temperature Range	-55°C to 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

The Samtec Inc. TLE-106-01-G-DV-K-TR is identified as a substitute for the Molex 0791099212 based on the following critical parameters:

12-position receptacle configuration with identical pitch (0.079" / 2.00mm)
2-row layout with matching row spacing (0.079" / 2.00mm)
Surface mount solder termination
Female socket contact type with gold mating finish
Push-pull fastening mechanism
Identical operating temperature range (-55°C to 125°C)
Equivalent RoHS3 compliance and MSL 1 rating

Both connectors are designed for board-to-board or cable applications and share the same fundamental electrical and mechanical interface characteristics that define substitutability within this rectangular connector category.

Parameter Comparison

Parameter	Molex 0791099212	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
Contact Type	Female Socket	Female Socket
Contact Finish - Mating	Gold	Gold
Contact Finish Thickness - Mating	15.0µin (0.38µm)	10.0µin (0.25µm)
Fastening Type	Push-Pull	Push-Pull
Termination	Solder	Solder
Insulation Color	Black	Black
Insulation Height	0.175" (4.45mm)	0.177" (4.50mm)
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C
Insulation Material	Liquid Crystal Polymer (LCP), Glass Filled	Liquid Crystal Polymer (LCP)
Contact Shape	Square	Square
Contact Material	Phosphor Bronze	Phosphor Bronze
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)
REACH Status	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99
HTSUS Code	8536.69.4040	8536.69.4040
Current Rating	1A	3.2A per Contact
Voltage Rating	125V	Not specified
Product Status	Active	Active

Engineering Selection Recommendations

Both the Molex 0791099212 and Samtec TLE-106-01-G-DV-K-TR are active production parts with ROHS3 compliance and REACH unaffected status, making them suitable for current design implementations. The Samtec substitute offers higher current capacity per contact (3.2A versus 1A), which provides additional margin for applications within the specified voltage and temperature operating ranges. The Samtec connector features pass-through capability, which may provide functional advantages in certain board-to-board configurations. Both parts maintain identical pitch, row spacing, and mechanical interface geometry, ensuring PCB footprint compatibility. Selection between these parts should be based on specific application current requirements and the functional benefit of pass-through connectivity where applicable.

Frequently Asked Questions (FAQ)

Q: Can the Samtec TLE-106-01-G-DV-K-TR be used as a direct replacement for the Molex 0791099212?

A: Yes, the Samtec connector shares identical pitch (0.079" / 2.00mm), row configuration (2 rows), position count (12), contact type (female socket), and mounting method (surface mount solder). PCB footprints are compatible. The Samtec part offers higher current rating (3.2A per contact versus 1A) and pass-through functionality.

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

A: The primary differences are: (1) Samtec offers higher current capacity per contact; (2) Samtec connector includes pass-through capability; (3) Contact finish thickness on mating surfaces differs slightly (10.0µin versus 15.0µin); (4) Insulation height varies marginally (0.177" versus 0.175"); (5) Samtec uses unfilled LCP while Molex uses glass-filled LCP.

Q: Are both connectors suitable for automotive and telecommunications applications?

A: The Molex 0791099212 is specified for automotive, general purpose, and telecommunications applications. The Samtec TLE-106-01-G-DV-K-TR does not list specific applications in the provided data. Application suitability should be confirmed against specific design requirements and environmental conditions.

Q: Do both connectors meet the same compliance standards?

A: Yes, both connectors are ROHS3 compliant, REACH unaffected, classified as EAR99, and share the same HTSUS code (8536.69.4040). Both have MSL 1 (Unlimited) moisture sensitivity rating and operate across the identical temperature range (-55°C to 125°C).

Q: What is the significance of the pass-through feature on the Samtec connector?

A: Pass-through capability allows signal or power to flow through the connector body, enabling daisy-chain or multi-level board stacking configurations. This feature is not present on the Molex connector and may provide design flexibility for specific applications.

Q: Are there any packaging or inventory considerations?

A: Both connectors are supplied in Tape & Reel (TR) packaging suitable for automated assembly. Current inventory shows 1162 units for the Molex part and 1961 units for the Samtec part.

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