Molex 0873814017 Equivalent & Substitute Parts

Part Overview

The Molex 0873814017 is a 40-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 and in production with 701 units currently in stock.

Substitute parts are necessary when the original Molex part is unavailable, when alternative packaging formats are required for manufacturing processes, or when enhanced electrical performance specifications are needed for specific application requirements.

Substiute Parts

0873814017

MolexIn Stock: 8070873814017 Datasheet

Current PartRFQ

SMM-120-02-F-D

Samtec Inc.In Stock: 1309SMM-120-02-F-D Datasheet

MFR RecommendedRFQ

SMM-120-02-F-D-K-TR

Samtec Inc.In Stock: 1307SMM-120-02-F-D-K-TR Datasheet

MFR RecommendedRFQ

SMM-120-02-H-D-LC

Samtec Inc.In Stock: 996SMM-120-02-H-D-LC Datasheet

MFR RecommendedRFQ

SMM-120-02-L-D

Samtec Inc.In Stock: 2169SMM-120-02-L-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The following Samtec Tiger Eye™ SMM series connectors are qualified substitutes for the Molex 0873814017 based on matching core electrical and mechanical parameters:

Matching Parameters (Substitution Basis):

• Connector Type: Receptacle
• Contact Type: Female Socket
• Number of Positions: 40
• Pitch - Mating: 0.079" (2.00mm)
• Number of Rows: 2
• Row Spacing - Mating: 0.079" (2.00mm)
• Mounting Type: Surface Mount
• Termination: Solder
• Fastening Type: Push-Pull
• Contact Shape: Square
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The substitute parts differ in packaging format (Tube or Tape & Reel), contact finish specifications, insulation material composition, and enhanced electrical ratings. These variations allow selection based on manufacturing process requirements and application performance needs.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts maintain ROHS3 compliance and MSL 1 rating, ensuring compatibility with standard manufacturing and storage requirements. The Samtec Tiger Eye™ SMM series connectors provide enhanced electrical performance with higher current ratings (3.2A per contact versus 1.9A) and extended voltage ratings (350VAC versus 125V), supporting applications with increased power delivery requirements.

Packaging Selection:

• Samtec SMM-120-02-L-D, SMM-120-02-F-D, and SMM-120-02-H-D-LC are supplied in Tube packaging, suitable for manual assembly and lower-volume production.
• Samtec SMM-120-02-F-D-K-TR is supplied in Tape & Reel format with Pick and Place feature designation, optimized for automated assembly processes.

Contact Finish Considerations:

• SMM-120-02-H-D-LC features gold post finish (3.00µin) in addition to gold mating finish, providing enhanced durability for repeated mating cycles.
• SMM-120-02-L-D offers reduced mating contact finish thickness (10.0µin), balancing cost with functional performance.
• SMM-120-02-F-D and SMM-120-02-F-D-K-TR feature minimal mating contact finish thickness (3.00µin) with tin post finish.

Insulation Material: All Samtec substitutes utilize Liquid Crystal Polymer (LCP) insulation with UL94 V-0 flammability rating, compared to the Molex part's unspecified insulation material.

Frequently Asked Questions (FAQ)

Q: Are these Samtec connectors mechanically compatible with the Molex 0873814017?

A: Yes. All substitute parts share identical pitch (0.079" / 2.00mm), row spacing (0.079" / 2.00mm), number of positions (40), and push-pull fastening mechanism. Mating interface dimensions are compatible for board-to-board applications.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging (SMM-120-02-L-D, SMM-120-02-F-D, SMM-120-02-H-D-LC) is suitable for manual assembly and lower-volume production runs. Tape & Reel packaging (SMM-120-02-F-D-K-TR) is optimized for automated pick-and-place assembly equipment, reducing labor and improving placement accuracy in high-volume manufacturing.

Q: Can I use a substitute part with higher current and voltage ratings in place of the original?

A: Yes. The Samtec substitutes with 3.2A per contact and 350VAC ratings exceed the Molex part's 1.9A and 125V specifications. Higher-rated components are electrically compatible with applications designed for lower ratings.

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

A: Contact finish thickness affects durability and cost. Thicker finishes (30.0µin) provide extended mating cycle life. Thinner finishes (3.00µin to 10.0µin) reduce material cost while maintaining functional performance for standard applications. Selection depends on expected connector mating cycles and cost constraints.

Q: Are all substitutes RoHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting standard environmental and storage requirements.

Q: What is the operating temperature difference between the original and substitutes?

A: The Molex 0873814017 operates from -55°C to 105°C. All Samtec substitutes extend the upper temperature limit to 125°C, providing additional thermal margin for high-temperature applications.