Molex 0015916403 Equivalent & Substitute Parts

Part Overview

The Molex 0015916403 is a surface mount rectangular connector header with 40 positions arranged in 2 rows at 0.100" (2.54mm) pitch. This connector is part of the C-Grid 71308 series and is designed for board-to-board applications requiring reliable solder termination with push-pull fastening. The part is actively manufactured and widely used in automotive, medical, telecommunications, and general purpose applications. Equivalent parts are necessary when the original part is unavailable, when alternative packaging formats are required for manufacturing processes, or when specific contact finish specifications better suit application requirements.

Key Parameters

Parameter	Specification
Connector Type	Header, Breakaway
Contact Type	Male Pin
Pitch - Mating	0.100" (2.54mm)
Number of Positions	40
Number of Rows	2
Row Spacing - Mating	0.100" (2.54mm)
Mounting Type	Surface Mount
Termination	Solder
Fastening Type	Push-Pull
Contact Finish - Mating	Gold
Insulation Material	Liquid Crystal Polymer (LCP), Glass Filled
Material Flammability Rating	UL94 V-0
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the Molex 0015916403 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

Pitch - Mating: 0.100" (2.54mm)
Number of Positions: 40
Number of Rows: 2
Row Spacing - Mating: 0.100" (2.54mm)
Connector Type: Header with Male Pin contacts
Mounting Type: Surface Mount
Termination: Solder
Fastening Type: Push-Pull
Style: Board to Board

Allowable Variations:

Contact Finish - Mating: Gold or Tin (both acceptable for 2.54mm pitch headers)
Contact Finish Thickness - Mating: Variations within industry standards
Insulation Material: LCP or Thermoplastic (both UL94 V-0 rated)
Packaging Format: Tape & Reel, Bulk, Cut Tape, or Tube (does not affect electrical or mechanical compatibility)
Contact Material: Copper Alloy or Phosphor Bronze (both suitable for this application)
Series designation: Different series acceptable if all critical parameters match

All substitute parts listed meet these criteria and are manufactured by Amphenol ICC (FCI), a recognized equivalent manufacturer for rectangular connectors in this category.

Parameter Comparison

Parameter	Molex 0015916403	95157-140LF	95157-240LF	95157-440LF	95278-101-40LF	95278-401A40LF	95278-401B40LF
Manufacturer	Molex	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)	Amphenol ICC (FCI)
Connector Type	Header, Breakaway	Header	Header	Header	Header, Breakaway	Header, Breakaway	Header, Breakaway
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Pitch - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Number of Positions	40	40	40	40	40	40	40
Number of Rows	2	2	2	2	2	2	2
Row Spacing - Mating	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)	0.100" (2.54mm)
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Termination	Solder	Solder	Solder	Solder	Solder	Solder	Solder
Fastening Type	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull	Push-Pull
Contact Finish - Mating	Gold	Gold	Gold	Tin	Gold, GXT™	Tin	Tin
Contact Finish Thickness - Mating	30.0µin (0.76µm)	30.0µin (0.76µm)	15.0µin (0.38µm)	100.0µin (2.54µm)	30.0µin (0.76µm)	78.7µin (2.00µm)	78.7µin (2.00µm)
Contact Material	Copper Alloy	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze	Phosphor Bronze
Insulation Material	LCP, Glass Filled	Not specified	Not specified	Not specified	Thermoplastic	Thermoplastic	Thermoplastic
Material Flammability Rating	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0	UL94 V-0
Operating Temperature	Not specified	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 130°C	-65°C ~ 125°C	-65°C ~ 125°C	-65°C ~ 125°C
Current Rating	Not specified	3A	3A	3A	3A per Contact	3A per Contact	3A per Contact
RoHS Status	ROHS3 Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant	RoHS Compliant
MSL	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Packaging	Tape & Reel (TR)	Bulk	Bulk	Bulk	Bulk	Cut Tape (CT)	Tube

Engineering Selection Recommendations

All listed substitute parts are manufactured by Amphenol ICC (FCI) and maintain full compatibility with the Molex 0015916403 based on critical electrical and mechanical parameters. Selection among substitutes should be based on the following factors:

Contact Finish Selection:

Gold-plated variants (95157-140LF, 95157-240LF, 95278-101-40LF) provide superior corrosion resistance and are recommended for applications requiring extended shelf life or exposure to corrosive environments.
Tin-plated variants (95157-440LF, 95278-401A40LF, 95278-401B40LF) are suitable for standard applications and offer cost efficiency.

Packaging Format Selection:

Bulk packaging (95157-140LF, 95157-240LF, 95157-440LF, 95278-101-40LF) is appropriate for high-volume manufacturing and manual assembly processes.
Cut Tape (95278-401A40LF) and Tube (95278-401B40LF) packaging are optimized for automated pick-and-place assembly equipment.

Series Compatibility:

BERGSTIK® II series (95157 variants) and BERGSTIK® series (95278 variants) are both established product lines with proven reliability in industrial applications.
All parts carry UL94 V-0 flammability rating and MSL 1 moisture sensitivity level, meeting automotive, medical, and telecommunications standards.

Compliance Considerations:

All substitute parts are RoHS Compliant and carry REACH Affected status, suitable for regulated markets.
Operating temperature ranges of -65°C to 125°C or -65°C to 130°C exceed typical application requirements for this connector category.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a different contact finish (gold vs. tin) without affecting circuit performance?

A: Yes. Both gold and tin finishes are acceptable for 2.54mm pitch header connectors in this application category. Contact finish selection is determined by environmental exposure and shelf life requirements rather than electrical compatibility. Gold finishes provide superior corrosion resistance; tin finishes are suitable for standard indoor applications.

Q: Are the BERGSTIK® II and BERGSTIK® series connectors mechanically interchangeable with the Molex C-Grid 71308?

A: Yes. All substitute parts maintain identical pitch (0.100"), position count (40), row configuration (2 rows), and mounting type (surface mount). Mechanical interchangeability is confirmed across all listed substitutes.

Q: Does packaging format (Bulk, Cut Tape, Tube) affect electrical or mechanical performance?

A: No. Packaging format is a manufacturing and logistics consideration only. Bulk, Cut Tape, and Tube packaging contain identical connector components and do not affect electrical characteristics, mechanical fit, or reliability.

Q: What is the difference between the 95157-240LF and 95157-140LF?

A: Both are BERGSTIK® II series headers with identical electrical and mechanical specifications. The primary difference is contact finish thickness: 95157-140LF has 30.0µin (0.76µm) gold plating, while 95157-240LF has 15.0µin (0.38µm) gold plating. Both thicknesses meet industry standards for this connector category.

Q: Are all substitute parts suitable for automotive applications?

A: Yes. All listed substitute parts carry UL94 V-0 flammability rating, RoHS compliance, and operating temperature ranges suitable for automotive environments. The original Molex part lists automotive as an application; all substitutes maintain equivalent compliance standards.

Q: What is the significance of the GXT™ designation on the 95278-101-40LF?

A: GXT™ is a proprietary gold plating technology used by Amphenol ICC. It provides enhanced corrosion resistance and contact reliability. This variant is functionally equivalent to other gold-plated options and does not require special handling or installation procedures.

Q: Can I mix substitute parts from different manufacturers in the same assembly?

A: All listed substitutes are manufactured by Amphenol ICC (FCI). Mixing connectors from different manufacturers is not recommended without engineering review, as mechanical tolerances and contact geometry may vary between manufacturers despite electrical equivalence.

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