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Molex 0791091052 Equivalent & Substitute Parts
Part Overview
The Molex 0791091052 is a 6-position receptacle connector from 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 supply chain continuity and design flexibility when the primary part becomes unavailable or when alternative sourcing is required.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Receptacle |
| Contact Type | Female Socket |
| Number of Positions | 6 |
| 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 | -55°C ~ 125°C |
| Current Rating | 1A |
| Voltage Rating | 125V |
| Insulation Material | Liquid Crystal Polymer (LCP) |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the Molex 0791091052 is determined by strict alignment of the following critical parameters:
- Connector type: Receptacle with female socket contacts
- Position count and arrangement: 6 positions in 2 rows
- Mating pitch and row spacing: 0.079" (2.00mm) in both dimensions
- Mounting technology: Surface mount with solder termination
- Fastening mechanism: Push-pull engagement
- Contact finish: Gold-plated mating surface
- Operating temperature range: -55°C to 125°C minimum
- Insulation material: Liquid Crystal Polymer (LCP)
- Compliance: ROHS3 and REACH requirements
The Samtec MMS-103-02-F-DV meets all critical substitution criteria, maintaining mechanical and electrical compatibility while offering equivalent functional performance in board-to-board and cable applications.
Parameter Comparison
| Parameter | Molex 0791091052 | Samtec MMS-103-02-F-DV |
|---|---|---|
| Manufacturer | Molex | Samtec Inc. |
| Series | Milli-Grid 79109 | MMS |
| Connector Type | Receptacle | Receptacle |
| Contact Type | Female Socket | Female Socket |
| Number of Positions | 6 | 6 |
| Number of Rows | 2 | 2 |
| Pitch - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) |
| 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 Material | Phosphor Bronze | Phosphor Bronze |
| Insulation Color | Black | Black |
| Insulation Material | Liquid Crystal Polymer (LCP), Glass Filled | Liquid Crystal Polymer (LCP) |
| Operating Temperature | -55°C ~ 125°C | -55°C ~ 125°C |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
| REACH Status | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
Both the Molex 0791091052 and Samtec MMS-103-02-F-DV are active production parts with equivalent ROHS3 and REACH compliance status. Selection between these parts should be based on:
- Supply availability and lead time requirements
- Current inventory levels (Molex: 836 pcs; Samtec: 2118 pcs)
- Manufacturer qualification and design documentation requirements
- Cost and volume pricing structures from respective suppliers
Both connectors satisfy the same electrical and mechanical requirements for 6-position, 2.00mm pitch surface mount receptacle applications with push-pull fastening and gold-plated contacts.
Frequently Asked Questions (FAQ)
Q: Can the Samtec MMS-103-02-F-DV directly replace the Molex 0791091052 in existing designs?
A: Yes. Both connectors share identical mating pitch (0.079"), position count (6), row configuration (2 rows), mounting type (surface mount), and fastening mechanism (push-pull). Mechanical and electrical compatibility is maintained.
Q: Are there differences in current rating between these parts?
A: The Molex part is rated at 1A total, while the Samtec part specifies 3.9A per contact. The Samtec part provides higher current capacity per contact, making it suitable for applications requiring increased current handling.
Q: What is the significance of the insulation material difference?
A: The Molex part uses glass-filled LCP while the Samtec part uses standard LCP. Both materials meet the operating temperature range of -55°C to 125°C and provide equivalent mechanical performance for this connector class.
Q: Are both parts suitable for automotive applications?
A: The Molex 0791091052 explicitly lists automotive applications. The Samtec MMS-103-02-F-DV does not specify applications in the provided data. Application suitability should be confirmed with the manufacturer for the Samtec part.
Q: What is the MSL rating and why does it matter?
A: Both parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. These connectors can be stored indefinitely without special humidity controls and do not require baking before soldering.
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