Molex 0791090024 Equivalent & Substitute Parts

Part Overview

The Molex 0791090024 is a 50-position receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount applications in board-to-board or cable interconnections. This connector features gold-plated mating contacts, push-pull fastening, and operates across -55°C to 125°C. The part is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production support.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Female Socket
Number of Positions	50
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Operating Temperature	-55°C ~ 125°C
Current Rating	1A
Voltage Rating	125V
Material Flammability Rating	UL94 V-0

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following core parameters:

Connector type: Receptacle
Contact type: Female socket
Number of positions: 50
Pitch and row spacing: 0.079" (2.00mm)
Mounting type: Surface mount
Fastening type: Push-pull
Contact finish: Gold on mating surface
Insulation color: Black
Material flammability: UL94 V-0

All listed substitute parts meet these core electrical and mechanical requirements. Variations in contact finish thickness, insulation material composition, current rating, voltage rating, and compliance status are documented in the parameter comparison table below.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Product Status	Pitch (mm)	Positions	Rows	Mount Type	Contact Finish - Mating	Operating Temp (°C)	Current Rating	Voltage Rating	RoHS Status	Packaging
0791090024	Molex	Milli-Grid 79109	Obsolete	2.00	50	2	SMD	Gold	-55 ~ 125	1A	125V	Non-compliant	—
150250-2000-RB	3M	1502	Active	2.00	50	2	SMD	Gold	-55 ~ 105	1A	500VDC	Compliant	Bulk
150250-2020-RB-WF	3M	1502	Active	2.00	50	2	SMD	Gold	-55 ~ 105	1A	500VDC	Compliant	Cut Tape (CT)
55510-150LF	Amphenol ICC (FCI)	Minitek® 2.00mm	Active	2.00	50	2	SMD	Gold	-55 ~ 125	2A	200V	Compliant	Tube
55510-150TRLF	Amphenol ICC (FCI)	Minitek® 2.00mm	Active	2.00	50	2	SMD	Gold	-55 ~ 125	2A	200V	Compliant	Cut Tape (CT)
55510-350LF	Amphenol ICC (FCI)	Minitek® 2.00mm	Active	2.00	50	2	SMD	Gold	-55 ~ 125	2A	200V	Compliant	Tube
MMS-125-02-L-DV-29	Samtec Inc.	MMS	Active	2.00	50	2	SMD	Gold	-55 ~ 125	3.9A per Contact	—	—	—
MMS-125-02-L-DV-A-39	Samtec Inc.	MMS	Active	2.00	50	2	SMD	Gold	-55 ~ 125	3.9A per Contact	—	ROHS3 Compliant	Tube
MMS-125-02-L-DV-A-TR	Samtec Inc.	MMS	Active	2.00	50	2	SMD	Gold	-55 ~ 125	3.9A per Contact	—	ROHS3 Compliant	Tape & Reel (TR)
MMS-125-02-L-DV-LC-M	Samtec Inc.	MMS	Active	2.00	50	2	SMD	Gold	-55 ~ 125	3.9A per Contact	—	ROHS3 Compliant	Tube
NPPN252FFKP-RC	Sullins Connector Solutions	—	Active	2.00	50	2	SMD	Gold	-40 ~ 105	2A	—	ROHS3 Compliant	Tube

Engineering Selection Recommendations

Active Product Status: All substitute parts listed are in active production status, ensuring long-term availability and supply chain stability compared to the obsolete Molex 0791090024.

RoHS Compliance: The original Molex part is RoHS non-compliant. Substitute options include:

3M 150250 series: RoHS Compliant
Amphenol ICC 55510 series: RoHS Compliant
Samtec MMS series: ROHS3 Compliant
Sullins NPPN252FFKP-RC: ROHS3 Compliant

For applications requiring RoHS compliance, any of the listed substitutes are suitable.

Temperature Range: The original part operates -55°C to 125°C. Amphenol ICC (55510 series) and Samtec MMS series maintain this full temperature range. The 3M 1502 series and Sullins NPPN252FFKP-RC operate at reduced upper limits (-55°C to 105°C and -40°C to 105°C respectively), which may be limiting for high-temperature applications.

Current and Voltage Ratings: The original part is rated 1A at 125V. Amphenol ICC and Samtec options provide higher current capacity (2A and 3.9A per contact respectively), offering design margin. The 3M 1502 series supports 500VDC, suitable for high-voltage applications.

Packaging Options: Substitutes are available in multiple packaging formats (Bulk, Cut Tape, Tube, Tape & Reel), accommodating different manufacturing workflows and volume requirements.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the Molex 0791090024 with any of these substitutes?

A: Yes, all listed parts share the core mechanical and electrical parameters: 50-position receptacle, 0.079" (2.00mm) pitch, 2-row configuration, surface mount, push-pull fastening, and gold-plated mating contacts. Physical footprint and mating interface are compatible.

Q: What is the main reason to substitute this part?

A: The Molex 0791090024 is obsolete. Active substitutes ensure continued availability, supply chain reliability, and access to current manufacturing processes and compliance certifications.

Q: Does the substitute part need to match the exact current rating?

A: No. The original part is rated 1A. Substitutes with higher current ratings (2A or 3.9A per contact) are electrically compatible and provide additional design margin. Lower-rated substitutes would not be acceptable.

Q: Are there temperature limitations I should consider?

A: The original part operates -55°C to 125°C. If your application requires the full temperature range, select Amphenol ICC (55510 series) or Samtec MMS series. The 3M 1502 and Sullins NPPN252FFKP-RC are limited to -55°C to 105°C and -40°C to 105°C respectively.

Q: What packaging option should I choose?

A: Packaging selection depends on manufacturing volume and assembly process. Tape & Reel (TR) is standard for high-volume automated assembly. Cut Tape (CT) suits medium volumes. Tube and Bulk packaging are used for lower volumes or manual assembly.

Q: Is RoHS compliance required for my application?

A: If RoHS compliance is mandatory, avoid the original Molex part. All listed substitutes meet RoHS or ROHS3 standards. Verify your specific regulatory requirements with your compliance team.

Q: Can I mix different substitute parts in the same design?

A: All substitutes are mechanically and electrically interchangeable at the connector interface. However, verify that your PCB layout and assembly process accommodate any dimensional variations in insulation height or contact finish thickness before mixing parts in production.

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