Molex 0878314028 Equivalent & Substitute Parts

Part Overview

The Molex 0878314028 is an active rectangular connector header designed for through-hole mounting applications. This shrouded 40-position connector with 2.00mm pitch serves board-to-board and cable interconnection requirements across automotive, general purpose, and telecommunications sectors. The part is ROHS3 compliant and currently in active production status with 957 units in stock.

Substitute parts are identified to address inventory availability, lead time constraints, or specific application requirements while maintaining electrical and mechanical compatibility within the defined parameter envelope.

Substiute Parts

0878314028

MolexIn Stock: 9990878314028 Datasheet

Current PartRFQ

10075025-G01-40ULF

Amphenol ICC (FCI)In Stock: 166110075025-G01-40ULF Datasheet

MFR RecommendedRFQ

LTMM-120-02-F-D

Samtec Inc.In Stock: 1301LTMM-120-02-F-D Datasheet

MFR RecommendedRFQ

LTMM-120-02-G-D

Samtec Inc.In Stock: 808LTMM-120-02-G-D Datasheet

MFR RecommendedRFQ

LTMM-120-02-S-D

Samtec Inc.In Stock: 1023LTMM-120-02-S-D Datasheet

MFR RecommendedRFQ

TMMH-120-01-S-D-ES

Samtec Inc.In Stock: 1290TMMH-120-01-S-D-ES Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Pitch - Mating: 0.079" (2.00mm) — exact match required
• Number of Positions: 40 — exact match required
• Number of Rows: 2 — exact match required
• Row Spacing - Mating: 0.079" (2.00mm) — exact match required
• Contact Type: Male Pin — exact match required
• Mounting Type: Through Hole — exact match required
• Termination: Solder — exact match required
• Shrouding: Shrouded - 4 Wall — exact match required

All identified substitute parts meet these core electrical and mechanical criteria. Variations in contact finish thickness, insulation material, fastening type, and operating temperature represent design alternatives within acceptable substitution boundaries for this connector category.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain active product status and ROHS3 compliance, ensuring regulatory alignment with the original Molex 0878314028. The Amphenol ICC 10075025-G01-40ULF provides the highest inventory availability (1560 units) and supports elevated voltage rating (200V AC/DC) compared to the original specification (125V). This part is suitable for applications requiring additional voltage margin.

The Samtec LTMM series (LTMM-120-02-F-D, LTMM-120-02-G-D, LTMM-120-02-S-D) offers extended operating temperature capability to 125°C, compared to the original 105°C maximum. These parts employ Liquid Crystal Polymer insulation and push-pull fastening mechanisms. Selection among these three variants depends on contact finish post requirements: LTMM-120-02-F-D and LTMM-120-02-S-D use tin post finish, while LTMM-120-02-G-D specifies gold post finish.

The Samtec TMMH-120-01-S-D-ES is a cuttable header strip with unshrouded design and lower insulation height (0.079" versus 0.190-0.252" for other options). This part is suitable only for applications where unshrouded configuration and cuttable format are acceptable design requirements.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC 10075025-G01-40ULF be used as a direct replacement for the Molex 0878314028?

A: Yes. Both parts share identical pitch (2.00mm), position count (40), row configuration (2), shrouding (4-wall), and mounting method (through-hole solder). The Amphenol part supports higher voltage (200V versus 125V) and current (2A AC/DC rating specified). Physical and electrical compatibility is confirmed.

Q: What is the key difference between the three Samtec LTMM variants?

A: The LTMM-120-02-F-D, LTMM-120-02-G-D, and LTMM-120-02-S-D differ in contact finish specifications. LTMM-120-02-F-D and LTMM-120-02-S-D use tin post finish with varying mating finish thickness (3.00µin and 30.0µin respectively). LTMM-120-02-G-D specifies gold post finish (3.00µin thickness). All three support -55°C to 105°C operation except LTMM-120-02-G-D, which extends to 125°C.

Q: Is the Samtec TMMH-120-01-S-D-ES compatible with the original Molex connector?

A: The TMMH part is not a direct replacement. It features unshrouded design (versus 4-wall shrouded), cuttable header format, and significantly lower insulation height (0.079" versus 0.252"). Use this part only when application requirements explicitly allow unshrouded configuration and cuttable strip format.

Q: What packaging format is used for each substitute part?

A: Amphenol ICC 10075025-G01-40ULF and all Samtec LTMM variants are supplied in tube packaging. The Samtec TMMH-120-01-S-D-ES is supplied in bulk packaging. Packaging format may affect handling, storage, and assembly processes.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts carry ROHS3 compliance certification, matching the original Molex 0878314028. The Amphenol ICC part carries RoHS compliance (not specifically ROHS3 designated). All parts meet MSL 1 (Unlimited) moisture sensitivity requirements.