Molex 0878313021 Rectangular Connector Header - Equivalent & Substitute Parts

Part Overview

The Molex 0878313021 is an active rectangular connector header designed for through-hole mounting applications. This shrouded 30-position, 2-row header with 0.079" (2.00mm) pitch serves board-to-board and cable interconnection requirements across automotive, general purpose, and telecommunications applications. The part features solder termination, gold-plated mating contacts, and operates across -55°C to 105°C. Equivalent and substitute parts are identified based on matching core electrical and mechanical parameters that ensure functional compatibility in target applications.

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 Finish - Mating	Gold
Contact Material	Phosphor Bronze
Operating Temperature	-55°C ~ 105°C
Current Rating	2A
Voltage Rating	125V
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Molex 0878313021 are identified based on strict alignment with the following core parameters:

30-position, 2-row configuration
0.079" (2.00mm) mating pitch and row spacing
Shrouded 4-wall design
Through-hole solder termination
Male pin contact type
Square contact shape
Keying slot feature
Phosphor bronze contact material
Gold mating contact finish
Operating temperature range of -55°C to 105°C minimum
UL94 V-0 flammability rating
RoHS3 compliance

The Amphenol ICC part 10075025-G01-30ULF meets these criteria with equivalent electrical performance. The Samtec LTMM series parts (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 variations in contact finish specifications and fastening type (Push-Pull versus Latch Holder).

Parameter Comparison

Parameter	Molex 0878313021	Amphenol ICC 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
Connector Type	Header	Header	Header	Header	Header	Header	Header	Header
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
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)
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
Fastening Type	Latch Holder	Detent Lock	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold, GXT™	Gold	Gold	Gold	Gold	Gold	Tin
Contact Finish - Post	Tin	Tin	Tin	Gold	Gold	Tin	Tin	Tin
Contact Material	Phosphor Bronze	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
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)

Engineering Selection Recommendations

All listed substitute parts maintain active product status and RoHS3 compliance, ensuring regulatory alignment with the original Molex 0878313021.

The Amphenol ICC 10075025-G01-30ULF provides direct functional equivalence with identical pitch, position count, and shrouding. This part features a detent lock fastening mechanism and offers higher voltage rating (200V) compared to the original specification.

The Samtec LTMM series substitutes (LTMM-115-02-F-D through LTMM-115-02-T-D) share core mechanical and electrical compatibility. These parts employ Push-Pull fastening instead of Latch Holder, and utilize Liquid Crystal Polymer (LCP) insulation material. Variants within this series differ in contact finish specifications:

LTMM-115-02-F-D: Gold mating, tin post finish
LTMM-115-02-G-D: Gold mating and post finish, extended temperature to 125°C
LTMM-115-02-H-D: Gold mating and post finish, extended temperature to 125°C
LTMM-115-02-L-D: Reduced gold mating thickness (10.0µin), tin post finish
LTMM-115-02-S-D: Gold mating and tin post finish
LTMM-115-02-T-D: Tin mating and post finish

Selection between these variants depends on specific application requirements for contact finish durability and temperature performance.

Frequently Asked Questions (FAQ)

Q: Can the Amphenol ICC 10075025-G01-30ULF directly replace the Molex 0878313021?

A: Yes. Both parts share identical pitch (0.079"), position count (30), row configuration (2), shrouding (4-wall), and through-hole solder termination. The primary difference is the fastening mechanism (detent lock versus latch holder). Mechanical fit and electrical performance are compatible.

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

A: The LTMM series variants differ in contact finish specifications and operating temperature range. LTMM-115-02-G-D and LTMM-115-02-H-D extend the upper operating temperature to 125°C and feature gold post finish. LTMM-115-02-T-D uses tin finish on both mating and post contacts. Selection depends on application thermal requirements and contact durability needs.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain RoHS3 compliance, matching the regulatory status of the original Molex 0878313021.

Q: Does the change from Latch Holder to Push-Pull fastening affect board layout?

A: Fastening mechanism differences do not affect PCB footprint or pitch spacing. However, mating force and connector retention characteristics differ. Verify connector retention requirements for your specific application before substitution.

Q: What is the moisture sensitivity level for Samtec LTMM parts?

A: Most LTMM variants carry MSL 1 (Unlimited), matching the original part. LTMM-115-02-F-D is listed as Not Applicable, indicating no moisture sensitivity restrictions.

Q: Can I substitute based on contact finish alone?

A: Contact finish selection should align with application requirements for corrosion resistance and contact durability. Gold finishes provide superior corrosion resistance compared to tin. However, all listed parts maintain electrical compatibility at the specified 2A current rating and 125V minimum voltage rating.

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