Molex 0940304531 Quick Connect Female Crimp Connector - Equivalent & Substitute Parts

Part Overview

The Molex 0940304531 is a 0.187" (4.75mm) Quick Connect Female Crimp Connector designed for 18-24 AWG wire applications. This non-insulated terminal operates as a free-hanging in-line connector with brass contacts finished in tin. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing procurement and system maintenance.

Key Parameters

Parameter	Value
Manufacturer Part Number	0940304531
Manufacturer	Molex
Category	Terminals
Tab Width	0.187" (4.75mm)
Tab Thickness	0.020" (0.51mm)
Tab Length	0.248" (6.30mm)
Wire Gauge	18-24 AWG
Termination Method	Crimp
Gender	Female
Contact Material	Brass
Contact Finish	Tin
Insulation Type	Non-Insulated
Product Status	Obsolete
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution compatibility for the Molex 0940304531 is determined by the following critical parameters:

Tab Width and Thickness: 0.187" (4.75mm) width and 0.020" (0.51mm) thickness ensure mechanical fit within mating connectors
Wire Gauge Range: The original part accommodates 18-24 AWG wire; substitutes must support this range or a compatible superset
Contact Material and Finish: Brass with tin finish provides electrical conductivity and corrosion resistance
Termination Method: Crimp termination requires compatible tooling and wire preparation
Gender and Mounting Type: Female, free-hanging in-line configuration for direct wire attachment
Insulation Specification: Non-insulated terminals for applications requiring direct contact exposure

The TE Connectivity AMP Connectors 160778-2 qualifies as a direct substitute based on matching tab dimensions, contact material, finish, termination method, and mounting configuration. The wire gauge range of 16-24 AWG encompasses the original 18-24 AWG specification.

Parameter Comparison

Parameter	Molex 0940304531	TE Connectivity 160778-2	Compatibility
Tab Width	0.187" (4.75mm)	0.187" (4.75mm)	Identical
Tab Thickness	0.020" (0.51mm)	0.020" (0.51mm)	Identical
Tab Length	0.248" (6.30mm)	0.248" (6.30mm)	Identical
Wire Gauge	18-24 AWG	16-24 AWG	Compatible (superset)
Termination	Crimp	Crimp	Identical
Gender	Female	Female	Identical
Contact Material	Brass	Brass	Identical
Contact Finish	Tin	Tin	Identical
Insulation Type	Non-Insulated	Non-Insulated	Identical
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Identical
Overall Length	0.594" (15.09mm)	0.654" (16.60mm)	Minor variation
Product Status	Obsolete	Active	Substitute is current
RoHS Status	ROHS3 Compliant	RoHS Compliant	Both compliant

Engineering Selection Recommendations

The TE Connectivity AMP Connectors 160778-2 serves as the primary substitute for the obsolete Molex 0940304531. Selection is based on:

Mechanical Compatibility: Identical tab dimensions (0.187" × 0.020" × 0.248") ensure direct fit within existing mating connectors
Electrical Equivalence: Matching brass-tin contact material and non-insulated configuration maintain electrical performance characteristics
Wire Gauge Coverage: The 16-24 AWG range encompasses the original 18-24 AWG specification, supporting all original applications
Active Product Status: The TE Connectivity part is currently manufactured and stocked, ensuring long-term availability
Regulatory Compliance: Both parts meet RoHS requirements; the substitute maintains ROHS3 compliance equivalent to the original

The minor difference in overall length (0.654" versus 0.594") does not affect electrical or mechanical function in free-hanging in-line applications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 160778-2 directly replace the Molex 0940304531 in existing assemblies?

A: Yes. The tab dimensions, contact material, finish, and termination method are identical. The substitute accommodates the same wire gauge range and maintains the same electrical and mechanical interface.

Q: What is the significance of the wire gauge range difference (16-24 AWG versus 18-24 AWG)?

A: The TE Connectivity part supports a broader wire gauge range. All wire sizes originally specified for the Molex part (18-24 AWG) fall within the substitute's range, ensuring full compatibility.

Q: Does the difference in overall length affect compatibility?

A: No. The 0.060" (1.51mm) difference in overall length does not impact mechanical fit or electrical performance in free-hanging in-line connector applications.

Q: Are both parts RoHS compliant?

A: Yes. The Molex 0940304531 is ROHS3 compliant, and the TE Connectivity 160778-2 is RoHS compliant. Both meet regulatory requirements for restricted substance content.

Q: What packaging is available for the substitute part?

A: The TE Connectivity 160778-2 is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.

Q: Why is the original Molex part classified as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The TE Connectivity equivalent remains in active production, providing a current sourcing solution.

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