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Molex 0878313028 Equivalent & Substitute Parts
Part Overview
The Molex 0878313028 is a vertical rectangular connector header from the Milli-Grid 87831 series, designed for board-to-board or cable applications. This 30-position, 2-row connector with 0.079" (2.00mm) pitch is actively manufactured and widely used in automotive, general purpose, and telecommunications applications. The part features shrouded 4-wall construction, through-hole solder termination, and latch holder fastening. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design compatibility across manufacturing batches and supplier availability.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Connector Type | Header |
| Contact Type | Male Pin |
| Number of Positions | 30 |
| Number of Rows | 2 |
| Pitch - Mating | 0.079" (2.00mm) |
| Row Spacing - Mating | 0.079" (2.00mm) |
| Shrouding | Shrouded - 4 Wall |
| Mounting Type | Through Hole |
| Termination | Solder |
| Contact Shape | Square |
| Contact Material | Phosphor Bronze |
| Insulation Material | Polyamide (PA), Nylon, Glass Filled |
| Operating Temperature | -55°C ~ 105°C |
| Current Rating | 2A |
| Voltage Rating | 125V |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitute parts for the Molex 0878313028 are qualified based on strict electrical and mechanical compatibility criteria. All substitute connectors must maintain the following core parameters:
- 30-position, 2-row configuration
- 0.079" (2.00mm) mating pitch and row spacing
- Male pin contact type with square contact shape
- Shrouded 4-wall construction
- Through-hole solder termination
- Board-to-board or cable style application
The substitute parts are grouped into two categories:
Category 1: Amphenol ICC (FCI) Minitek® Series - The 10075025-G01-30ULF maintains full electrical and mechanical compatibility with enhanced voltage rating (200V) and alternative fastening (Detent Lock). Insulation material differs (Thermoplastic vs. Polyamide), but all critical mating parameters align.
Category 2: Samtec Flex Stack LTMM Series - Five variants (LTMM-115-02-F-D, LTMM-115-02-G-D, LTMM-115-02-H-D, LTMM-115-02-L-D, LTMM-115-02-S-D, LTMM-115-02-T-D) provide substitution options with identical core mating parameters. These parts differ in contact finish specifications (gold thickness, post finish material) and fastening type (Push-Pull vs. Latch Holder). Operating temperature ranges vary between -55°C ~ 105°C and -55°C ~ 125°C depending on variant.
Parameter Comparison
| Parameter | Molex 0878313028 | Amphenol 10075025-G01-30ULF | Samtec LTMM-115-02-F-D | Samtec LTMM-115-02-G-D | Samtec LTMM-115-02-H-D | Samtec LTMM-115-02-L-D | Samtec LTMM-115-02-S-D | Samtec LTMM-115-02-T-D |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Molex | Amphenol ICC (FCI) | Samtec Inc. | Samtec Inc. | Samtec Inc. | Samtec Inc. | Samtec Inc. | Samtec Inc. |
| Series | Milli-Grid 87831 | Minitek® 2.00mm | Flex Stack, LTMM | Flex Stack, LTMM | Flex Stack, LTMM | Flex Stack, LTMM | Flex Stack, LTMM | Flex Stack, LTMM |
| Number of Positions | 30 | 30 | 30 | 30 | 30 | 30 | 30 | 30 |
| Number of Rows | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Pitch - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Row Spacing - Mating | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) | 0.079" (2.00mm) |
| Contact Type | Male Pin | Male Pin | Male Pin | Male Pin | Male Pin | Male Pin | Male Pin | Male Pin |
| Shrouding | Shrouded - 4 Wall | Shrouded - 4 Wall | Shrouded - 4 Wall | Shrouded - 4 Wall | Shrouded - 4 Wall | Shrouded - 4 Wall | Shrouded - 4 Wall | Shrouded - 4 Wall |
| Mounting Type | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole | Through Hole |
| Termination | Solder | Solder | Solder | Solder | Solder | Solder | Solder | Solder |
| Contact Shape | Square | Square | Square | Square | Square | Square | Square | Square |
| Contact Material | Phosphor Bronze | Copper Alloy | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze | Phosphor Bronze |
| Contact Finish - Mating | Gold | Gold, GXT™ | Gold | Gold | Gold | Gold | Gold | Tin |
| Contact Finish - Post | Tin | Tin | Tin | Gold | Gold | Tin | Tin | Tin |
| Fastening Type | Latch Holder | Detent Lock | Push-Pull | Push-Pull | Push-Pull | Push-Pull | Push-Pull | Push-Pull |
| Operating Temperature | -55°C ~ 105°C | Not specified | -55°C ~ 105°C | -55°C ~ 125°C | -55°C ~ 125°C | -55°C ~ 105°C | -55°C ~ 105°C | -55°C ~ 105°C |
| Current Rating | 2A | 2A (AC/DC) | Not specified | Not specified | Not specified | Not specified | Not specified | Not specified |
| Voltage Rating | 125V | 200V (AC/DC) | Not specified | Not specified | Not specified | Not specified | Not specified | Not specified |
| RoHS Status | ROHS3 Compliant | RoHS Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | Not Applicable | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All listed substitute parts maintain active product status and comply with RoHS regulations, ensuring long-term availability and regulatory compliance. The Amphenol ICC 10075025-G01-30ULF offers the highest voltage rating (200V) and represents a single-source alternative with full mechanical and electrical compatibility. This part is suitable for applications requiring enhanced voltage margins.
The Samtec Flex Stack LTMM series provides six variants with identical core mating parameters. Selection among these variants depends on specific contact finish and fastening requirements:
- LTMM-115-02-F-D, LTMM-115-02-L-D, and LTMM-115-02-S-D maintain gold mating finish with tin post finish, matching the original part's contact finish strategy.
- LTMM-115-02-G-D and LTMM-115-02-H-D feature gold post finish, offering enhanced corrosion resistance in the solder joint area.
- LTMM-115-02-T-D provides tin mating finish for cost optimization in non-corrosive environments.
All Samtec variants employ Push-Pull fastening instead of the original Latch Holder design. LTMM-115-02-G-D and LTMM-115-02-H-D support extended operating temperature to -55°C ~ 125°C, providing thermal margin for high-temperature applications.
Frequently Asked Questions (FAQ)
Q: Can the Amphenol ICC 10075025-G01-30ULF directly replace the Molex 0878313028?
A: Yes. Both connectors share identical mating pitch (0.079"), row spacing (0.079"), position count (30), row configuration (2), contact type (Male Pin), shrouding (4-wall), mounting method (Through Hole), and termination (Solder). The Amphenol part features Detent Lock fastening versus Latch Holder, and Thermoplastic insulation versus Polyamide, but these do not affect mating compatibility. The higher voltage rating (200V vs. 125V) provides additional design margin.
Q: What is the primary difference between Samtec LTMM variants?
A: The six Samtec LTMM-115-02 variants differ in contact finish specifications and operating temperature range. LTMM-115-02-F-D, LTMM-115-02-L-D, and LTMM-115-02-S-D maintain tin post finish with varying gold mating finish thickness. LTMM-115-02-G-D and LTMM-115-02-H-D feature gold post finish and support -55°C ~ 125°C operation. LTMM-115-02-T-D uses tin mating finish. All variants employ Push-Pull fastening and maintain identical mating geometry.
Q: Are the Samtec LTMM parts mechanically compatible with the original Molex design?
A: Samtec LTMM parts are mechanically compatible at the mating interface. All maintain 0.079" pitch, 2-row configuration, 30-position count, square contact shape, and 4-wall shrouding. However, the fastening mechanism differs (Push-Pull vs. Latch Holder), requiring verification that the mating connector or receptacle accommodates the different fastening style.
Q: Which substitute part should be selected for high-temperature applications?
A: LTMM-115-02-G-D and LTMM-115-02-H-D support operating temperatures to -55°C ~ 125°C, compared to the original -55°C ~ 105°C specification. These variants are suitable for applications requiring extended thermal performance. Both feature gold post finish for enhanced solder joint reliability.
Q: Do all substitute parts meet RoHS compliance?
A: Yes. All substitute parts listed are RoHS compliant (either ROHS3 or RoHS Compliant status). The original Molex 0878313028 is ROHS3 Compliant, and all Amphenol and Samtec alternatives maintain equivalent or superior compliance status.
Q: What is the inventory availability for substitute parts?
A: Current inventory levels are: Amphenol 10075025-G01-30ULF (2181 pcs), Samtec LTMM-115-02-F-D (1368 pcs), LTMM-115-02-G-D (1466 pcs), LTMM-115-02-H-D (753 pcs), LTMM-115-02-L-D (1763 pcs), LTMM-115-02-S-D (1141 pcs), and LTMM-115-02-T-D (848 pcs). The original Molex part maintains 1117 pcs in stock.
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