Molex 0873812415 Equivalent & Substitute Parts

Part Overview

The Molex 0873812415 is a 24-position receptacle connector from the Milli-Grid 87381 series, designed for surface mount board-to-board applications. This connector features 0.079" (2.00mm) pitch, gold-plated mating contacts, and push-pull fastening. The part is active in production with 917 units in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained across the critical parameters: connector type, position count, pitch, mounting method, fastening type, and contact finish material. Alternative sources provide equivalent functionality for applications requiring component availability, lead time optimization, or specific packaging formats.

Key Parameters

Parameter	Specification
Manufacturer Part Number	0873812415
Manufacturer	Molex
Series	Milli-Grid 87381
Connector Type	Receptacle
Number of Positions	24
Pitch - Mating	0.079" (2.00mm)
Number of Rows	2
Row Spacing - Mating	0.079" (2.00mm)
Mounting Type	Surface Mount
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Termination	Solder
Current Rating	1.9A
Voltage Rating	125V
Operating Temperature	-55°C ~ 105°C
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the Molex 0873812415 are qualified based on the following critical parameters that must remain equivalent:

Mandatory Equivalence Parameters:

Connector type: Receptacle
Number of positions: 24
Pitch - mating: 0.079" (2.00mm)
Number of rows: 2
Row spacing - mating: 0.079" (2.00mm)
Mounting type: Surface Mount
Fastening type: Push-Pull
Contact finish - mating: Gold
Termination: Solder

Allowable Variation Parameters:

Current rating: Substitutes may exceed the 1.9A specification
Voltage rating: Substitutes may exceed the 125V specification
Operating temperature range: Substitutes may provide extended range
Contact finish thickness: Variation permitted within industry standards
Insulation material: Variation permitted (PA46 Nylon 4/6, PPS, LCP)
Insulation height: Minor variation permitted (4.00mm to 4.20mm or 4.66mm)
Packaging format: Tube or Tape & Reel (TR)

Substitutes are organized by manufacturer: Hirose Electric Co Ltd (A3 series) and Samtec Inc. (Tiger Eye™ SMM series).

Parameter Comparison

Parameter	Molex 0873812415	Hirose A3-24DA-2SV(71)	Hirose A3A-24DA-2SV(71)	Samtec SMM-112-02-F-D	Samtec SMM-112-02-L-D	Samtec SMM-112-02-S-D-K-TR	Samtec SMM-112-02-S-D-LC	Samtec SMM-112-02-S-D-P-TR	Samtec SMM-112-02-S-D-TR
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Contact Type	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket	Female Socket
Number of Positions	24	24	24	24	24	24	24	24	24
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)	0.079" (2.00mm)
Number of Rows	2	2	2	2	2	2	2	2	2
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)	0.079" (2.00mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold	Gold
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Current Rating (Amps)	1.9A	1A	1A	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact	3.2A per Contact
Voltage Rating	125V	200VAC	200VAC	350VAC	350VAC	350VAC	350VAC	350VAC	350VAC
Operating Temperature	-55°C ~ 105°C	-55°C ~ 85°C	-55°C ~ 85°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	RoHS Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Tube	Tube	Tube	Tube	Tube	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tape & Reel (TR)
Inventory (Pcs)	917	1198	920	833	1073	1490	1621	2290	1833

Engineering Selection Recommendations

All substitute parts listed maintain active product status and comply with ROHS3 or RoHS certification requirements. Selection between substitutes depends on application-specific requirements:

Hirose A3 Series (A3-24DA-2SV(71), A3A-24DA-2SV(71)): These substitutes provide equivalent mechanical and electrical compatibility with the Molex 0873812415. The A3A-24DA-2SV(71) variant includes board guide features. Both operate at reduced temperature range (-55°C to 85°C) and lower current rating (1A) compared to the primary part. Hirose parts are suitable for general purpose and telecommunications applications.

Samtec Tiger Eye™ SMM Series (SMM-112-02-F-D, SMM-112-02-L-D, SMM-112-02-S-D-K-TR, SMM-112-02-S-D-LC, SMM-112-02-S-D-P-TR, SMM-112-02-S-D-TR): These substitutes exceed the electrical performance of the Molex part with 3.2A per contact current rating and 350VAC voltage rating. Operating temperature extends to 125°C. Samtec variants differ in packaging format (Tube or Tape & Reel) and mechanical features (board lock, pick and place capability). All Samtec parts use Beryllium Copper contacts with Liquid Crystal Polymer insulation.

Packaging Considerations: Tape & Reel (TR) packaging variants (SMM-112-02-S-D-K-TR, SMM-112-02-S-D-P-TR, SMM-112-02-S-D-TR) are optimized for automated assembly processes. Tube packaging variants are suitable for manual assembly or lower-volume applications.

Frequently Asked Questions (FAQ)

Q: Can Hirose A3 series connectors directly replace the Molex 0873812415?

A: Yes, mechanically and electrically. The A3 series maintains identical pitch (0.079"), position count (24), row configuration (2 rows), and push-pull fastening. However, the Hirose parts operate at a reduced temperature range (-55°C to 85°C versus -55°C to 105°C) and lower current rating (1A versus 1.9A). Verify application requirements before substitution.

Q: What are the key differences between Samtec SMM-112 variants?

A: All Samtec SMM-112 variants share identical electrical and mechanical specifications (24 positions, 0.079" pitch, 3.2A per contact, 350VAC). Differences are in packaging format and mechanical features: SMM-112-02-F-D and SMM-112-02-L-D use Tube packaging; SMM-112-02-S-D-K-TR, SMM-112-02-S-D-P-TR, and SMM-112-02-S-D-TR use Tape & Reel; SMM-112-02-S-D-LC includes board lock feature; variants with "-K-" or "-P-" suffix include pick and place features.

Q: Are all substitute parts ROHS compliant?

A: Yes. All listed substitutes comply with either ROHS3 or RoHS certification. The Molex primary part and all Samtec variants are ROHS3 compliant. Hirose A3-24DA-2SV(71) is ROHS3 compliant; Hirose A3A-24DA-2SV(71) is RoHS compliant.

Q: What is the impact of different insulation materials on substitution?

A: The Molex 0873812415 uses Polyamide (PA46) Nylon 4/6 insulation. Hirose A3 series uses Polyphenylene Sulfide (PPS); Samtec SMM-112 series uses Liquid Crystal Polymer (LCP). All materials meet UL94 V-0 flammability requirements. Material differences do not affect electrical compatibility but may influence mechanical properties and environmental resistance. Verify material compatibility with application environment.

Q: Can Tape & Reel packaged parts be used in manual assembly applications?

A: Yes. Tape & Reel packaging is optimized for automated pick-and-place assembly but can be manually extracted for hand assembly. Tube packaging is more convenient for manual assembly workflows.

Q: What is the significance of contact finish thickness variation?

A: Contact finish thickness affects durability and wear resistance. The Molex part specifies 30.0µin (0.76µm) mating contact finish. Hirose A3 series specifies 8.00µin (0.203µm); Samtec SMM-112-02-F-D specifies 3.00µin (0.076µm); other Samtec variants specify 10.0µin (0.25µm) or 30.0µin (0.76µm). Thicker finishes provide extended contact life in high-cycle mating applications. Verify finish thickness requirements for your application's mating cycle expectations.

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