Molex 0873814488 Equivalent & Substitute Parts

Part Overview

The Molex 0873814488 is a 44-position receptacle connector from the Milli-Grid 87381 series, designed for board-to-board applications with surface mount termination. This connector features a 0.079" (2.00mm) pitch, gold-plated mating contacts, and push-pull fastening. The part is active in production with 869 units currently in stock. Equivalent parts are identified when design requirements necessitate alternative sourcing, inventory constraints, or specific performance characteristics aligned with the original specification.

Substiute Parts

0873814488

MolexIn Stock: 9450873814488 Datasheet

Current PartRFQ

MMS-122-02-F-DV

Samtec Inc.In Stock: 644MMS-122-02-F-DV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0873814488 is determined by strict alignment with the following critical parameters:

• Connector Type & Position Count: Must be a 44-position receptacle
• Pitch Specification: Mating pitch must be 0.079" (2.00mm) with 2-row configuration and 0.079" row spacing
• Mounting & Termination: Surface mount with solder termination required
• Fastening Mechanism: Push-pull fastening type
• Contact Interface: Gold-plated mating surface with female socket contact type
• Board-to-Board Compatibility: Designed for board-to-board or compatible interconnect applications

The Samtec MMS-122-02-F-DV meets these core substitution criteria, maintaining mechanical and electrical compatibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0873814488 and Samtec MMS-122-02-F-DV are active production parts with ROHS3 compliance and identical export classifications. Selection between these parts should be based on:

• Inventory Availability: Molex 0873814488 has 869 units in stock; Samtec MMS-122-02-F-DV has 619 units in stock
• Operating Temperature Range: The Samtec part supports -55°C ~ 125°C versus the Molex part at -55°C ~ 105°C. Applications requiring operation above 105°C should specify the Samtec alternative
• Current Rating: The Samtec part is rated at 3.9A per contact versus the Molex part at 1.9A per contact. Higher-current applications should consider the Samtec option
• Compliance Status: Both parts maintain identical regulatory compliance (ROHS3, EAR99, MSL 1)

Frequently Asked Questions (FAQ)

Q: Are these connectors mechanically interchangeable?

A: Yes. Both connectors share identical pitch (0.079"), row configuration (2 rows with 0.079" spacing), position count (44), insulation height (0.177"), and fastening mechanism (push-pull). They are designed for direct substitution in board-to-board applications.

Q: What are the key differences between these parts?

A: The primary differences are operating temperature range (Samtec supports up to 125°C versus Molex at 105°C), current rating per contact (Samtec 3.9A versus Molex 1.9A), and contact finish thickness on mating surfaces (Samtec 3.00µin versus Molex 15.0µin).

Q: Can I use the Samtec part in place of the Molex part?

A: Yes, provided your application does not require the specific contact finish thickness of the original Molex part. The Samtec MMS-122-02-F-DV meets all mechanical and electrical substitution criteria.

Q: Are both parts RoHS compliant?

A: Yes. Both the Molex 0873814488 and Samtec MMS-122-02-F-DV are ROHS3 compliant with MSL 1 (unlimited moisture sensitivity level).

Q: What is the difference in contact finish thickness?

A: The Molex part has 15.0µin (0.38µm) gold plating on mating contacts, while the Samtec part has 3.00µin (0.076µm). Both meet gold-plated specifications for the 0.079" pitch rectangular connector category.

Q: Which part should I select for high-temperature applications?

A: The Samtec MMS-122-02-F-DV supports continuous operation to 125°C, making it suitable for applications exceeding the Molex part's 105°C maximum operating temperature.