Molex 0791098671 Equivalent & Substitute Parts

Part Overview

The Molex 0791098671 is a 44-position receptacle connector featuring 0.079" (2.00mm) pitch surface mount technology with gold-plated mating contacts. This connector is part of the Milli-Grid 79109 series and is designed for board-to-board or cable applications. The part is currently active in production with 1030 units in stock. Equivalent parts are necessary to ensure design flexibility, manage supply chain continuity, and accommodate specific application requirements such as operating temperature ranges or voltage specifications.

Substiute Parts

0791098671

MolexIn Stock: 10790791098671 Datasheet

Current PartRFQ

150244-2020-RB

3MIn Stock: 1510150244-2020-RB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3M 150244-2020-RB is classified as a manufacturer-recommended substitute for the Molex 0791098671 based on the following critical parameters:

Matching Parameters:

• Connector type: Receptacle
• Number of positions: 44
• Pitch - mating: 0.079" (2.00mm)
• Number of rows: 2
• Row spacing - mating: 0.079" (2.00mm)
• Mounting type: Surface Mount
• Termination: Solder
• Fastening type: Push-Pull
• Contact finish - mating: Gold
• Contact finish thickness - mating: 30.0µin (0.76µm)
• Insulation color: Black
• Current rating: 1A
• Contact shape: Square
• Moisture sensitivity level: 1 (Unlimited)

These parameters define the mechanical and electrical interchangeability of the substitute part within the same connector family.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0791098671 and 3M 150244-2020-RB are active products with full RoHS compliance and unlimited moisture sensitivity ratings, making them suitable for production applications. The 3M substitute offers a higher voltage rating of 500VDC compared to the Molex part's 125V rating, providing greater electrical margin in applications requiring higher voltage tolerance. However, the Molex part supports a higher maximum operating temperature of 125°C versus the 3M part's 105°C limit. The 3M part features increased contact finish thickness on the post (200.0µin versus 74.8µin), which may provide enhanced durability in high-cycle mating applications. Selection should be based on specific application requirements regarding operating temperature range and voltage specifications.

Frequently Asked Questions (FAQ)

Q: Are these connectors mechanically interchangeable? A: Yes. Both connectors share identical pitch (0.079"), position count (44), row configuration (2 rows), and surface mount termination, ensuring mechanical compatibility in board-level applications.

Q: What are the key electrical differences between these parts? A: The 3M 150244-2020-RB supports 500VDC versus the Molex part's 125V rating. Both are rated for 1A current. Applications requiring higher voltage operation should specify the 3M substitute.

Q: Do operating temperature ranges differ? A: Yes. The Molex 0791098671 operates from -55°C to 125°C, while the 3M 150244-2020-RB operates from -55°C to 105°C. Applications requiring operation above 105°C must use the Molex part.

Q: Are both parts RoHS compliant? A: Yes. The Molex part is ROHS3 compliant, and the 3M part is RoHS compliant. Both meet environmental compliance requirements.

Q: What is the difference in insulation height? A: The Molex part has an insulation height of 0.175" (4.45mm), while the 3M part measures 0.183" (4.65mm). This 0.008" difference should be verified against PCB layout constraints.

Q: Do the contact materials differ? A: Yes. The Molex part uses Phosphor Bronze contacts, while the 3M part uses Copper Alloy contacts. Both materials are suitable for the specified 1A current rating and gold-plated mating surfaces.