Molex 0878312429 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0878312429 is an active rectangular connector header designed for board-to-board or cable applications. This through-hole mounted connector features 24 positions arranged in 2 rows with 0.079" (2.00mm) pitch spacing. The component is manufactured with shrouded 4-wall construction and solder termination, making it suitable for automotive, general purpose, and telecommunications applications. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, manage inventory across multiple suppliers, and maintain design compatibility when the primary part becomes unavailable.

Substiute Parts

0878312429

MolexIn Stock: 10900878312429 Datasheet

Current PartRFQ

LTMM-112-02-G-D

Samtec Inc.In Stock: 970LTMM-112-02-G-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0878312429 is determined by strict alignment of the following critical parameters:

• Connector Type & Contact Configuration: Must be a header with male pin contacts
• Position Count & Row Configuration: Must accommodate 24 positions in 2 rows
• Pitch Specifications: Mating pitch and row spacing must both be 0.079" (2.00mm)
• Mounting & Termination: Must support through-hole mounting with solder termination
• Shrouding Design: Must feature shrouded 4-wall construction
• Electrical Ratings: Current and voltage ratings must meet or exceed 2A and 125V respectively
• Compliance Standards: Must maintain ROHS3 compliance and equivalent environmental certifications

The Samtec Inc. LTMM-112-02-G-D meets these substitution criteria across all critical parameters, enabling direct functional replacement in applications requiring rectangular connector headers with these specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the Molex 0878312429 and Samtec LTMM-112-02-G-D are active products with ROHS3 compliance and REACH unaffected status, making them suitable for current design implementations. The Samtec substitute provides an extended operating temperature range of -55°C to 125°C compared to the Molex specification of -55°C to 105°C, offering additional thermal margin in applications subject to elevated ambient conditions. Both components share identical pitch, position count, row configuration, and shrouding specifications, ensuring mechanical and electrical compatibility in board-to-board connector applications. Selection between these parts should be based on supply availability, lead time requirements, and specific thermal operating conditions of the target application.

Frequently Asked Questions (FAQ)

Q: Can the Samtec LTMM-112-02-G-D be used as a direct replacement for the Molex 0878312429?

A: Yes. Both connectors share identical mating pitch (0.079" / 2.00mm), position count (24), row configuration (2 rows), shrouding design (4-wall), and termination method (solder). The Samtec part meets all critical substitution parameters and maintains equivalent electrical and compliance certifications.

Q: What are the key differences between these two connector headers?

A: The primary differences are the fastening type (Molex uses latch holder; Samtec uses push-pull), insulation material (Molex uses glass-filled polyamide; Samtec uses liquid crystal polymer), and operating temperature range (Samtec extends to 125°C versus Molex at 105°C). Contact length specifications also differ slightly between the two designs.

Q: Are there any compatibility concerns with PCB footprints?

A: Both connectors maintain the same 0.079" (2.00mm) pitch spacing and 2-row configuration. However, differences in insulation height (Molex: 0.252" / 6.40mm; Samtec: 0.190" / 4.83mm) and contact length specifications may affect board layout clearances. PCB footprint verification is necessary before design implementation.

Q: Do both parts meet the same compliance and certification standards?

A: Yes. Both the Molex 0878312429 and Samtec LTMM-112-02-G-D are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS codes (8536.69.4040). Both maintain MSL 1 (unlimited) moisture sensitivity ratings.

Q: Which connector should be selected for high-temperature applications?

A: The Samtec LTMM-112-02-G-D is rated for -55°C to 125°C, providing a 20°C higher upper temperature limit compared to the Molex 0878312429 (-55°C to 105°C). For applications requiring sustained operation above 105°C, the Samtec part is the appropriate selection.