Molex 0791098619 Equivalent & Substitute Parts

Part Overview

The Molex 0791098619 is a 40-position receptacle connector with 0.079" (2.00mm) pitch, designed for surface mount applications in board-to-board or cable interconnect configurations. This connector features gold-plated mating contacts, push-pull fastening, and operates across the -55°C to 125°C temperature range. The part is active in production and ROHS3 compliant. Equivalent and substitute parts are identified to provide design flexibility, accommodate supply chain variations, and support alternative packaging or performance requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

0791098619

MolexIn Stock: 8960791098619 Datasheet

Current PartRFQ

MMS-120-02-F-DV

Samtec Inc.In Stock: 1052MMS-120-02-F-DV Datasheet

MFR RecommendedRFQ

MMS-120-02-S-DV

Samtec Inc.In Stock: 1031MMS-120-02-S-DV Datasheet

MFR RecommendedRFQ

TLE-120-01-G-DV-A-P

Samtec Inc.In Stock: 1061TLE-120-01-G-DV-A-P Datasheet

MFR RecommendedRFQ

TLE-120-01-G-DV-K-TR

Samtec Inc.In Stock: 1595TLE-120-01-G-DV-K-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Molex 0791098619 are qualified based on the following critical parameters that determine functional and mechanical compatibility:

Core Compatibility Criteria:

• Connector type: Receptacle
• Contact type: Female socket
• Number of positions: 40
• 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
• Operating temperature range: -55°C ~ 125°C
• Contact material: Phosphor bronze
• RoHS compliance: ROHS3 compliant

All substitute parts listed meet these core electrical and mechanical parameters. Variations in packaging format (Tape & Reel versus Tube), insulation material (thermoplastic glass-filled versus liquid crystal polymer), contact finish thickness, current rating per contact, and connector style (standard receptacle versus pass-through receptacle) are secondary differentiators that do not affect primary substitution eligibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active production components with ROHS3 compliance and MSL 1 rating, meeting the regulatory and environmental requirements of the original Molex 0791098619.

Samtec MMS-120-02-F-DV and MMS-120-02-S-DV: These standard receptacle connectors provide direct functional equivalence with identical pitch, position count, and row configuration. Both are available in Tube packaging and feature higher current ratings (3.9A per contact) compared to the original part. The MMS series uses liquid crystal polymer insulation material, which differs from the thermoplastic glass-filled material of the Molex part but maintains equivalent electrical performance across the specified temperature range.

Samtec TLE-120-01-G-DV-A-P and TLE-120-01-G-DV-K-TR: These pass-through receptacle connectors offer the same core electrical and mechanical compatibility as the standard receptacle options. The TLE series provides additional design flexibility through pass-through functionality and includes pick-and-place features. The TLE-120-01-G-DV-K-TR is available in Tape & Reel packaging, matching the original part's packaging format. Current rating for the TLE series is 3.2A per contact.

Selection between substitute options should be based on packaging requirements (Tape & Reel versus Tube), connector style preference (standard receptacle versus pass-through), and application-specific current demands.

Frequently Asked Questions (FAQ)

Q: Are all listed substitute parts mechanically compatible with the Molex 0791098619?

A: Yes. All substitute parts share identical pitch (0.079" / 2.00mm), position count (40), row configuration (2 rows), and row spacing (0.079" / 2.00mm). Mechanical compatibility is maintained across all listed alternatives.

Q: What is the difference between standard receptacle and pass-through receptacle connectors?

A: Standard receptacle connectors (MMS series) are designed for single-sided mating. Pass-through receptacle connectors (TLE series) allow signal routing through the connector body, enabling daisy-chain or multi-level interconnect configurations. Both types maintain identical pitch and position specifications.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR) and Tube packaging formats do not affect electrical or mechanical performance. Packaging selection is driven by assembly process requirements and inventory management practices.

Q: Why do substitute parts show higher current ratings than the original Molex part?

A: Current rating differences reflect design variations in contact geometry and material composition between manufacturers. The Samtec MMS series is rated at 3.9A per contact, while the TLE series is rated at 3.2A per contact, compared to 1A for the Molex 0791098619. Higher ratings indicate greater current-carrying capacity and do not affect compatibility in applications requiring lower current levels.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the environmental and regulatory compliance of the original part.

Q: What is the difference between thermoplastic glass-filled and liquid crystal polymer insulation materials?

A: Both materials meet the specified operating temperature range (-55°C ~ 125°C) and electrical performance requirements. Liquid crystal polymer (LCP) offers enhanced dimensional stability and lower moisture absorption compared to thermoplastic glass-filled materials. Material selection does not affect primary substitution eligibility.