Molex 0934445121 Rectangular Connector Housing - Equivalent & Substitute Parts

Part Overview

The Molex 0934445121 is an 8-position rectangular connector receptacle housing in the ML-XT 93444 series, designed for free-hanging in-line applications with crimp termination and latch holder fastening. This part is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. The housing accommodates male pin contacts (not included) and features IP68 sealing capability in a black thermoplastic construction.

Key Parameters

Parameter	Value
Connector Type	Receptacle
Contact Type	Male Pin
Number of Positions	8
Number of Rows	2
Mounting Type	Free Hanging (In-Line)
Contact Termination	Crimp
Fastening Type	Latch Holder
Color	Black
Features	IP68
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the Molex 0934445121 is determined by strict alignment with the following core parameters: 8-position receptacle housing configuration, male pin contact accommodation, 2-row arrangement, free-hanging in-line mounting, crimp termination method, and latch holder fastening. All substitute parts must maintain these electrical and mechanical specifications to ensure direct compatibility within existing connector systems.

The substitute parts identified—AT04-08PB-RD01, DT04-08PB-C015, DT04-08PB-CE01, and AT04-08PB-MM01—satisfy these core requirements across manufacturers Amphenol Sine Systems Corp and TE Connectivity Deutsch Connectors. Variations in features (such as sealed vs. unsealed designs, presence of protective caps, and enhanced sealing ratings) represent functional enhancements rather than compatibility barriers, as these do not alter the fundamental housing interface or contact accommodation.

Parameter Comparison

Parameter	Molex 0934445121	AT04-08PB-RD01	DT04-08PB-C015	DT04-08PB-CE01	AT04-08PB-MM01
Manufacturer	Molex	Amphenol Sine Systems Corp	TE Connectivity Deutsch Connectors	TE Connectivity Deutsch Connectors	Amphenol Sine Systems Corp
Connector Type	Receptacle	Receptacle	Receptacle	Receptacle	Receptacle
Contact Type	Male Pin	Male Pin	Male Pin	Male Pin	Male Pin
Number of Positions	8	8	8	8	8
Number of Rows	2	2	2	2	2
Mounting Type	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)	Free Hanging (In-Line)
Contact Termination	Crimp	Crimp	Crimp	Crimp	Crimp
Fastening Type	Latch Holder	Latch Holder	Latch Holder	Latch Holder	Latch Holder
Color	Black	Black	Black	Black	Black
Operating Temperature	Not Specified	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Obsolete	Active	Active	Active	Active

Engineering Selection Recommendations

All four substitute parts—AT04-08PB-RD01, DT04-08PB-C015, DT04-08PB-CE01, and AT04-08PB-MM01—are classified as active products with current manufacturing support, providing supply chain continuity for applications currently using the obsolete Molex 0934445121. All substitutes maintain ROHS3 compliance and are manufactured by established connector suppliers with established quality certifications.

AT04-08PB-MM01 is designated as the manufacturer-recommended substitute, combining sealed design with protective cap coverage and active product status. DT04-08PB-CE01 offers enhanced environmental protection through IP68 and IP6K9K ratings with integrated cap coverage, suitable for applications requiring elevated sealing performance. DT04-08PB-C015 provides IP68 and IP6K9K protection without cap coverage for applications where protective covers are managed separately. AT04-08PB-RD01 delivers sealed design without cap coverage, offering a baseline sealed alternative.

Selection among these substitutes should be based on specific application requirements regarding environmental sealing, protective cap integration, and supply availability rather than fundamental connector compatibility.

Frequently Asked Questions (FAQ)

Q: Can AT04-08PB-RD01 directly replace the Molex 0934445121 in existing assemblies?

A: Yes. Both housings accommodate 8 male pin contacts in a 2-row configuration with identical free-hanging in-line mounting, crimp termination, and latch holder fastening. The AT04-08PB-RD01 adds sealed design and specified operating temperature range (-55°C ~ 125°C) compared to the original part.

Q: What is the functional difference between DT04-08PB-C015 and DT04-08PB-CE01?

A: Both TE Connectivity Deutsch parts maintain identical core connector specifications. DT04-08PB-CE01 includes an integrated protective cap (cover), while DT04-08PB-C015 does not. Both feature IP68 and IP6K9K sealing ratings and reduced wire seals.

Q: Why is AT04-08PB-MM01 listed as manufacturer-recommended?

A: AT04-08PB-MM01 combines sealed design with integrated protective cap coverage and is designated as the preferred substitute by the connector manufacturer, offering comprehensive environmental protection in a single housing configuration.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitutes—AT04-08PB-RD01, DT04-08PB-C015, DT04-08PB-CE01, and AT04-08PB-MM01—maintain ROHS3 compliance, matching the regulatory status of the original Molex 0934445121.

Q: Do substitute parts require different contact specifications?

A: No. All substitute housings accommodate the same male pin contact type and crimp termination method. Contact selection remains independent of housing substitution and should be specified according to application wire gauge and current requirements.

Q: What packaging options are available for substitute parts?

A: All substitute parts are supplied in bulk packaging, consistent with standard connector distribution practices for receptacle housings.

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